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Country snapshot

Philippines

Heat, the plans and rules that shape protection, the organisations at work, and where a shared effort could help. Researched in October 2026.

Watch: The Philippines and heat · 0:40 · narrated, captions in the picture

How to read this. Facts link to their sources; anything marked proposed or inferred is the researchers’ suggestion, not a commitment by anyone named. Gaps are gaps in what we found, not faults.

Heat context

Climate: Predominantly tropical maritime and humid. A hot dry rainfall season is not equivalent to a low-humidity hot-dry climate. Conditions vary by location and season. Seasonality: PAGASA identifies a generally hot dry season in March–May; this is not a guarantee of safe temperatures in other months. Night heat: The National Adaptation Plan describes rising maximum and minimum temperatures, with minimum temperatures rising faster over the period discussed. Indoor night exposure is not measured by satellite surface temperature or a daytime station heat index. Trend scope: NAP climate discussion uses historical records, including 1951–2020 anomalies relative to 1991–2020; no historical trend is labelled a 2026 local measurement. Evidence:

Warnings

Known, inferred, uncertain: Known: Public information services exist. Inferred: Link alerts to named staff, services and spending authority. Uncertain: Current reach, uptime, local calibration, household reception and action completion. National: PAGASA publishes heat-index information; DOST describes the iHeatMAP platform and localised heat information. Metric limit: Heat index combines air temperature and humidity. It is not air temperature, indoor temperature, land-surface temperature or WBGT. Do not replace worksite exposure assessment with one public index. Last mile: Online dissemination is documented. Reliable reach to people without smartphones, language/accessibility coverage, message receipt and funded action are not established by platform availability. Local example: QC has local heat-action arrangements; a C40 roadmap brief describes its iRISE-UP context. Exact current local trigger documents still need confirmation. DOST iHeatMAP service explanation  · PAGASA heat guidance and monitoring release  · C40 Quezon City cooling roadmap RFP 

Who is responsible

Rules for heat at work

Known, inferred, uncertain: Known: General OSH statute and recent advisory circulation. Inferred: Worker-verified implementation and inspection can connect work protection to income resilience. Uncertain: Full 2026 operative texts, enforcement, informal-worker coverage and claims experience. Binding background: RA 11058 (2018) establishes private-sector OSH duties and worker rights, including duties to manage hazardous conditions; it excludes the public sector from its stated coverage. Recent update: PMAP circulated Labor Advisory 20, series 2026, on 27 October. Its accessible account describes workplace-specific risk assessment, rest/water/cooling and adjusting unsafe work. Verification boundary: DOLE live pages and original signed advisory were not retrieved. PMAP is an employer association describing its own circulation, not an independent legal determination. No new numeric threshold, wage entitlement, universal stop-work rule or exact WBGT limit is asserted here. Income and voice: Whether rest is paid, which contractors/platform workers are covered, how grievances work and how protection is inspected need instrument- and workplace-specific verification. Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026  Evidence status: reported

Cooling and buildings

  • Official guidance or data Philippine Green Building Code (2015) Fact: The original code, retrieved from ADB’s legal repository, covers envelope, ventilation, roof insulation, colour and mechanical systems for qualifying buildings. Limit: Coverage is conditional on occupancy/size and other rules; do not assume it covers every existing low-income dwelling. No cooling effect or health benefit is inferred from compliance alone. Philippine Green Building Code 2015 original document via ADB 
  • Official guidance or data DOE appliance labelling/performance framework Fact: The UP National Administrative Register search record lists 2024 AC labelling guidance and amendments to PELP/MEPP instruments. Limit: Legal-deposit/index evidence establishes listed instruments, not every operative threshold, enforcement rate or appliance performance. Full latest texts and approved labels would be worth checking for procurement. DOE 2024 AC labelling guidance legal deposit index 
  • Reported, not evaluated Quezon City Green Building Code update Fact: City government reports a November 2025 code launch aligned with its climate plan and national framework. Limit: Announcement reviewed; full current ordinance, transition provisions and local enforcement not verified. QC Green Building Code launch 
  • Reported, not evaluated Refrigerant transition and servicing Fact: UNIDO reports 2026 work with DENR/Philippine Ozone Desk on HCFC phase-out, future Kigali implementation and technical capacity for alternatives. Limit: Do not conflate ozone-depleting HCFC phase-out with HFC phase-down. Equipment-specific refrigerant/GWP, charge limits, safety and recovery arrangements would be worth verifying. No refrigerant retrofit is prescribed. UNIDO Philippines cooling programme 2026 

Cooling design options

  • Design concept Envelope, shade and ventilation Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Type: passive Evidence scope: Researcher design interpretation, not a measured performance claim or endorsement. Mechanism: Reduce solar/radiant gain and use available air movement; ventilation would ideally consider outdoor heat, air quality and clinical infection-control needs. Suits: both Suits why: Relevant in either climate; humid conditions limit what ventilation alone can achieve. Tradeoffs and upkeep: Roof strength/typhoon wind, fire, damp, safe access, tenancy permission and maintenance. Source context: Philippine Green Building Code 2015 original document via ADB 
  • Design concept Efficient fans as a complementary option Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Type: active Evidence scope: Researcher design interpretation, not a measured performance claim or endorsement. Mechanism: Move air around people rather than refrigerate the room. Suits: both Suits why: Benefit is conditional on humidity, air temperature, workload and vulnerability; not a universal safe-use prescription. Tradeoffs and upkeep: No power means no electric fan; repair and safe wiring matter. Do not infer illness prevention from comfort. Source context: Philippine National Adaptation Plan 2023–2050 
  • Design concept Targeted air-conditioned refuges Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Type: active Evidence scope: Researcher design interpretation, not a measured performance claim or endorsement. Mechanism: Provide a cooled indoor area; actual humidity control and heat-load performance would be worth checking. Suits: both Suits why: Refrigeration can cool in either climate; hot-humid design requires latent-load/humidity assessment. Tradeoffs and upkeep: Peak electricity, refrigerant leakage/GWP, street waste heat (loop cooling), outage vulnerability, queues, access and recurring cost. Source context: QC library cooling centres 
  • Design concept Maintained trees and public shade Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Type: passive Evidence scope: Researcher design interpretation, not a measured performance claim or endorsement. Mechanism: Intercept solar radiation and, where conditions permit, support evapotranspiration. Suits: both Suits why: Shade is useful in dry and humid settings; water, canopy and airflow influence results. Tradeoffs and upkeep: Water scarcity, storm damage, root space, irrigation upkeep, displacement and inaccessible paths; protect tenure and users. Source context: Philippine Green Building Code 2015 original document via ADB 
  • Design concept Evaporative cooling screening Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Type: active Evidence scope: Researcher design interpretation, not a measured performance claim or endorsement. Mechanism: Water evaporation can reduce dry-bulb temperature when sufficient evaporative potential exists. Suits: hot-dry Suits why: High humidity limits evaporation; no blanket recommendation for Philippine humid settings. Tradeoffs and upkeep: Additional humidity, water use, hygiene, indoor moisture and electrical/maintenance needs. Not a verified national programme. Source context: PAGASA climate of the Philippines 

Money for protection

  • Official guidance or data People’s Survival Fund Role: Public adaptation project-finance mechanism for LGUs and qualified local/community organisations. Heat connection: A costed heat-protection proposal could be explored where adaptation eligibility, local risk evidence and application requirements are met; this is an inference, not a verified heat award. Access: CCC’s page describes proposals, work/financial plan and local planning/risk documents; confirm the current PSF Board Secretariat process and organisation accreditation. Opportunity status: Current call availability and heat-project eligibility not verified. Currency: PHP Budget limit: No national envelope presented as available money for this proposal. CCC People’s Survival Fund 
  • Official guidance or data LGU DRRM and General Fund budgeting Role: Budgeted local preparedness/mitigation alongside recurring service expenditure. Heat connection: Heat services require a lawful cost classification and approved local plan; do not assume any DRRM balance can finance any heat activity. Access: Local planning/budget offices and legal/accounting review. Opportunity status: Project-specific appropriation not verified. Currency: PHP Budget limit: The 2026 DILG repository abstract distinguishes some capital improvements from routine maintenance; full opinion would be worth reviewing before treating a cost as eligible. Republic Act 10121, disaster management law  · DILG 2026 legal opinion on LDRRMF purposes 
  • Reported, not evaluated City partnership and technical preparation Role: Project preparation and city-to-city technical support. Heat connection: C40’s QC cooling-roadmap RFP and the city’s accelerator participation identify technical planning routes. Access: City and programme partnerships; no continuing open consultancy or grant call assumed. Opportunity status: Historical RFP / announced collaboration; current access not verified. Budget limit: A network or RFP is not a standing fund available to every applicant. C40 Quezon City cooling roadmap RFP  · Quezon City urban heat accelerator participation 

What costs we could verify

Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found

  • A consolidated, adopted national heat action plan with operational triggers, institutional mandates and itemised recurring finance was not verified; sectoral guidance and local initiatives were found.
  • Final adopted heat plans and heat-specific budget lines for most selected cities were not verified.
  • No independent outcome evaluation of the selected cooling-centre or awareness programmes was verified.
  • Indoor/night exposure, unpaid care, wage continuity, disability access and migrant/informal-worker reach remain incompletely documented in the reviewed sources.
  • No comparable local upfront/running/upkeep prices, poorest-quintile affordability assessment or heat-specific parametric policy wording verified.
  • No named worker-led or disability-led implementation partner was verified in this focused collection. This is not a claim that none exists.

Ways to help (proposed)

Fairness and delivery checks

Design concept Scope: Researcher checks for local co-design, not measured claims about every Philippine programme. Checks:
  • Include women and unpaid caregivers when schedules, access and household costs change.
  • Confirm accessible travel, entrances, toilets, seating and communication with disabled and older users; a designation does not establish accessibility.
  • Check whether renters can authorise roof work and whether improvements raise rents or displace users.
  • Include migrants, outdoor/informal workers and people without smartphones or cooling at home; verify who is actually reached.
  • Protect wage continuity and worker voice; do not use monitoring for surveillance, retaliation or unsafe output targets.
  • Budget drinking water, cleaning, servicing, electricity and replacement; account for outages and competing water use.
 QC library cooling centres  · Republic Act 11058, occupational safety and health  · IFRC Philippines mid-year report 2025 

How the cities were chosen

Cities selected: 8 Rule: Combine named historical high population-exposure cities with a locally evidenced urban implementation case and regional heat-information/response and PAGASA station-extreme cases. Historical research: 2020 study covers 139 cities, largely using 2014–2016 hot-dry-season land-surface data and 2015 population indicators. Its exposure component is population density; it is not a current thermometer ranking. City list limit: These eight are evidence-selected priorities, not a verified national top-eight ranking in 2026. No comparable current dataset combining humidity, indoor/night heat, people exposed and vulnerability was verified. Geographic limit: Selected cases cover Luzon/Metro Manila and Mindanao; Visayas city coverage remains incomplete. That does not establish lower heat risk or less activity there. Source: 2020 Philippine city heat-health risk study 

Limits of this research

Primary document access: Several DOLE/DOE/DepEd pages blocked direct retrieval. Recent DOLE advisory content is limited to accessible PMAP circulation; recent school memorandum content is limited to an official division circulation page. Not verified: source  · source  · source  · source  · source  Date checked: 2026-10-28

Known, inferred, uncertain

Known: Sources establish a humid heat context, national sectoral instruments and documented local programmes. Inferred: Protection can improve when warning, work rules, accessible cooling, health readiness and budgets are combined. Uncertain: Current city ranking, final plan adoption, legal details of very recent instruments, implementation and outcomes.

Paying when heat strikes

The layers of money we found for heat in Philippines, from the systems that reach people to risk shared with insurers: Contingent finance, Budgets and reserves, Insurance, pools and bonds, Social protection. Each is shown with how it is released, how it reaches people, and what we could not find.

See Philippines, layer by layer

Cities

Manila

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: A final adopted city heat action plan, legal instrument and itemised recurring budget were not verified in this review. This does not establish absence.

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: Not verified Philippine Green Building Code 2015 original document via ADB 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • Historical index; not current heat-index or indoor measurements.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: The 2020 national analysis classified Manila’s historical population-exposure index very high. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: National Capital Region

Selection basis: The 2020 national analysis classified Manila’s historical population-exposure index very high.

Selection not a rank: true

Evidence:

Proposed collaboration entry: Dense-city assessment, including indoor/night exposure and accessible shade, is a proposed entry point.

Caloocan

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: A final adopted city heat action plan, legal instrument and itemised recurring budget were not verified in this review. This does not establish absence.

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: Not verified Philippine Green Building Code 2015 original document via ADB 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • Historical exposure category is density-based; current local programme implementation not verified.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: The same study classified Caloocan’s historical population-exposure index high. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: National Capital Region

Selection basis: The same study classified Caloocan’s historical population-exposure index high.

Selection not a rank: true

Evidence:

Proposed collaboration entry: Investigate neighbourhood and worker/housing protection with the LGU and community representatives.

Mandaluyong

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: A final adopted city heat action plan, legal instrument and itemised recurring budget were not verified in this review. This does not establish absence.

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: Not verified Philippine Green Building Code 2015 original document via ADB 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • Historical index cannot determine 2026 individual or worksite risk.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: The same study classified Mandaluyong’s historical population-exposure index high. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: National Capital Region

Selection basis: The same study classified Mandaluyong’s historical population-exposure index high.

Selection not a rank: true

Evidence:

Proposed collaboration entry: Investigate tenant/worker needs and publicly accessible protection across neighbourhood boundaries.

Quezon City

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: June 2026 city account describes the Heat Action Team and comprehensive plan development. Quezon City Heat Action Team 

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: 2025 city code launch reported; full operative ordinance not reviewed. Philippine Green Building Code 2015 original document via ADB  · QC Green Building Code launch 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • Selection reflects documented heat response and urban risk, not a claim that QC has the highest current national index.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: City sources document recent heat-action governance and a library cooling-centre offer. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: National Capital Region

Selection basis: City sources document recent heat-action governance and a library cooling-centre offer.

Selection not a rank: true

Evidence:

Notable programme ids:

  • ph-qc-team
  • ph-qc-cooling
  • ph-qc-green
  • ph-c40

Local actors verified:

  • ph-qc

Proposed collaboration entry: A potential place to study warning, public cooling, health surveillance, building policy and operating budgets together.

Dagupan

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: A final adopted city heat action plan, legal instrument and itemised recurring budget were not verified in this review. This does not establish absence.

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: Not verified Philippine Green Building Code 2015 original document via ADB 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • A five-day station series is insufficient to establish annual citywide exposure rank.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: PAGASA’s archived March 2026 computed heat-index summary includes the Dagupan station; this provides a recent regional heat-information case. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: Pangasinan, Luzon

Selection basis: PAGASA’s archived March 2026 computed heat-index summary includes the Dagupan station; this provides a recent regional heat-information case.

Selection not a rank: true

Evidence:

Proposed collaboration entry: Investigate forecast-to-action, exposed market/work settings and water/power continuity with local authorities.

Tuguegarao

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: A final adopted city heat action plan, legal instrument and itemised recurring budget were not verified in this review. This does not establish absence.

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: Not verified Philippine Green Building Code 2015 original document via ADB 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • Airport/station conditions are not representative of every neighbourhood or building.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: CAAP identifies Tuguegarao among heat-affected airport locations; PIA documents a local school response in 2024. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: Cagayan, Luzon

Selection basis: CAAP identifies Tuguegarao among heat-affected airport locations; PIA documents a local school response in 2024.

Selection not a rank: true

Evidence:

Notable programme ids:

  • ph-tug-school

Proposed collaboration entry: Build on the documented school-response experience to examine classroom conditions, continuity and household impacts.

Cotabato City

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: A final adopted city heat action plan, legal instrument and itemised recurring budget were not verified in this review. This does not establish absence.

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: Not verified Philippine Green Building Code 2015 original document via ADB 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • A station extreme over a partial season is not citywide annual exposure or a measure of local response readiness.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: PAGASA’s April 2026 climate-forum presentation includes Cotabato City among high station heat-index observations during 1 March–21 April 2026. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: Mindanao

Selection basis: PAGASA’s April 2026 climate-forum presentation includes Cotabato City among high station heat-index observations during 1 March–21 April 2026.

Selection not a rank: true

Evidence:

Proposed collaboration entry: Investigate local warning-to-action, health/school readiness and affordable protection with the relevant city and BARMM institutions.

Butuan City

Heat context: Humid tropical heat with seasonal/local variation; indoor, night and worksite conditions need local measurements.

Official heat plan: Detail: A final adopted city heat action plan, legal instrument and itemised recurring budget were not verified in this review. This does not establish absence.

Agencies responsible: Mandated route: City/LGU DRRM planning arrangements under RA 10121, plus health, schools, planning/engineering, utilities and employers within their own mandates. Local delivery limit: Specific local commitments outside the documented examples are proposed routes, not verified operational assignments. Republic Act 10121, disaster management law 

Warnings: Verified national route: PAGASA heat-index information and DOST-described iHeatMAP. Local protocol: Local thresholds, offline channels, current duty roster and financed protective actions not verified. DOST iHeatMAP service explanation 

Rules for heat at work: National reference: RA 11058 for covered private-sector workplaces; verify current advisory text and applicability before using operational rules. City specific rule: Not verified Republic Act 11058, occupational safety and health  · PMAP circulation of DOLE signed advisory 20-2026 

Cooling and buildings: National reference: Philippine Green Building Code applies to qualifying buildings; local permit and current appliance requirements require checking. City specific requirements: Not verified Philippine Green Building Code 2015 original document via ADB 

Money for protection: Potential routes: Approved LGU budgets and eligible adaptation project routes, subject to legal/appraisal conditions; no heat earmark inferred. CCC People’s Survival Fund  · DILG 2026 legal opinion on LDRRMF purposes 

Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost.

Gaps in what we found:

  • Historical computed heat-index extremes need method scrutiny; very high heat-index values are not literal air temperatures or current citywide readings.
  • Neighbourhood indoor/night exposure, disability access, wage protection and recurring maintenance cost require verification.

Known, inferred, uncertain: Known: The same PAGASA presentation identifies Butuan among historical March–May station heat-index extremes, with the event dated 25 May 2020. Inferred: The proposed entry point follows from the documented exposure/response evidence. Uncertain: Current operational readiness, effects, local adoption, reach and costs.

Region: Agusan del Norte, Mindanao

Selection basis: The same PAGASA presentation identifies Butuan among historical March–May station heat-index extremes, with the event dated 25 May 2020.

Selection not a rank: true

Evidence:

Proposed collaboration entry: Investigate market/work protection and indoor/night measurements, alongside the legal and operating route for services.

Programmes

  • PAGASA heat-index / iHeatMAP service Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: DOST’s April 2025 account describes localised heat-index monitoring and prediction. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • PH
     Institutional owner: PAGASA Evidence: Current status: Official service description reviewed; live map endpoint failed retrieval. No live reading or uptime claim. Published fact: DOST’s April 2025 account describes localised heat-index monitoring and prediction. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • DOH heat-health preparedness Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: DOH bureau index identifies March 2025 interim guidance and a service-continuity annex. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • PH
     Institutional owner: DOH Evidence: Current status: Guidance identified; full annex and implementation/evaluation not verified. Published fact: DOH bureau index identifies March 2025 interim guidance and a service-continuity annex. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • Quezon City Heat Action Team Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: City’s June 2026 account assigns planning, response and health-surveillance responsibilities. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • Quezon City
     Institutional owner: Quezon City Evidence: Current status: Team reported; full adopted HAP, signed instrument and recurring budget not verified. Published fact: City’s June 2026 account assigns planning, response and health-surveillance responsibilities. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • QC community libraries as cooling centres Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: May 2026 city notice designates 32 air-conditioned libraries, with published Monday–Friday 08:00–17:00 hours. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • Quezon City
     Institutional owner: Quezon City Public Library / city government Evidence: Current status: Published capacity/offer is not verified attendance, disability access, outage resilience or measured health benefit; hours are worth reconfirming. Published fact: May 2026 city notice designates 32 air-conditioned libraries, with published Monday–Friday 08:00–17:00 hours. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • QC 2025 green-building code launch Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: City reports a November 2025 code launch aligned with climate planning. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • Quezon City
     Institutional owner: Quezon City Evidence: Current status: Announcement reviewed; full ordinance and enforcement not verified. Published fact: City reports a November 2025 code launch aligned with climate planning. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • 2026 national school preparedness memorandum circulation Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: San Pablo schools-division page circulates DepEd Memorandum 064, series 2026. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • PH
     Institutional owner: DepEd Evidence: Current status: Title/circulation verified only; do not implement thresholds from media summaries. Published fact: San Pablo schools-division page circulates DepEd Memorandum 064, series 2026. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • Tuguegarao time-limited blended learning response Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: PIA describes a local board decision for blended learning during April–May 2024. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • Tuguegarao
     Institutional owner: Tuguegarao local school and health boards Evidence: Current status: Historical response, not verified current schedule or an independently evaluated learning/health intervention. Published fact: PIA describes a local board decision for blended learning during April–May 2024. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • PRC / IFRC REACH heat work Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: IFRC’s 2025 report documents community resilience training and heat-awareness work in communities and schools. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • Quezon City
    • Marikina
    • Rizal
    • Cebu
     Institutional owner: PRC with IFRC and Zurich Climate Resilience Alliance Evidence: Current status: Implementer report; outputs and reach claims are not independently evaluated prevention outcomes. Published fact: IFRC’s 2025 report documents community resilience training and heat-awareness work in communities and schools. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • HEATMAP-PH Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: SCO project page describes satellite/socioeconomic mapping, a planned heat-vulnerability portal and later ground sensors. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • Manila
    • Makati
    • Quezon City
     Institutional owner: SCO Philippines and named project partners Evidence: Current status: Project design and component maps are described; completed portal/sensor deployment and operational validation not verified. Published fact: SCO project page describes satellite/socioeconomic mapping, a planned heat-vulnerability portal and later ground sensors. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • UNIDO / DENR cooling-sector transition Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: UNIDO reports an August 2026 launch/technical mission on phase-out, safer alternatives and servicing capacity. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • PH
     Institutional owner: DENR Philippine Ozone Desk / UNIDO Evidence: Current status: Programme activity reported; equipment-specific refrigerant/GWP and beneficiary affordability not verified. Published fact: UNIDO reports an August 2026 launch/technical mission on phase-out, safer alternatives and servicing capacity. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • QC cooling roadmap and city-network participation Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: C40 published a cooling-roadmap RFP; QC reports participation in the Cool Cities Accelerator. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • Quezon City
     Institutional owner: QC / C40 Evidence: Current status: Historical preparation route, not verified current open funding or completed outcomes. Published fact: C40 published a cooling-roadmap RFP; QC reports participation in the Cool Cities Accelerator. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • National city heat-health risk analysis (2020 publication) Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: The study analyses 139 cities using historical surface, population and social indicators; high exposure and overall risk are different components. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • PH
     Institutional owner: Research authors/institutions identified in the original paper Evidence: Current status: Historical composite risk assessment, not current measurement or an intervention evaluation. Mortality inputs include pre-2015 background data; thresholds are not transferable clinical limits. Published fact: The study analyses 139 cities using historical surface, population and social indicators; high exposure and overall risk are different components. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.
  • PSF adaptation proposal mechanism Costs: Currency: PHP Note: No comparable local lifecycle cost quote verified. No USD or FX conversion is invented; a fund envelope is not a unit intervention cost. Known, inferred, uncertain: Known: CCC describes eligible adaptation project preparation and submission requirements. Inferred: Potential usefulness depends on delivery, inclusion and upkeep. Uncertain: Current reach, actual use, costs, effect and applicable local conditions. Countries:
    • PH
     Places:
    • PH
     Institutional owner: PSF Board / Secretariat; CCC information route Evidence: Current status: Adaptation-finance route; no selected city heat grant, open call or available allocation verified. Published fact: CCC describes eligible adaptation project preparation and submission requirements. Researcher interpretation: Can inform local protection design; listing does not establish the proposed mechanism or an independent health outcome.

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