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Country snapshot

Indonesia

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

Watch: Indonesia and heat · 0:49 · 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: Official guidance or data Predominantly hot-humid lowland exposure, with important monsoonal and seasonally drier conditions; elevation and island differences prohibit a single national cooling prescription. BMKG persistent hot weather explanation  · CoCHAP Indonesia programme account  Night heat: Measured in a study Urban heat storage makes night exposure important; national and city-specific night-health thresholds and comparable city night trends were not established in this snapshot. World Bank Unlivable: urban heat in East Asian cities  Temperature records:
  • Official guidance or data Value: 0.8 Unit: °C anomaly Period: 2024 Place: Indonesia station aggregate Sample: 117 BMKG stations for national summary Baseline: 1991–2020
  • Official guidance or data Value: 0.38 Unit: °C anomaly Period: 2025 Place: Indonesia station aggregate Sample: 115 BMKG stations Baseline: 1991–2020
 Caveat: Annual mean temperature is not a heat-health threshold; station samples differ and annual variability is not a trend slope.

Plans

Warnings

  • Official guidance or data BMKG publishes forecasts, hot-weather explanations and official information through web, social channels and InfoBMKG. Nationwide validated heat-health impact thresholds, automatic cash triggers and offline reach were not verified. BMKG persistent hot weather explanation 
  • Reported, not evaluated Pantau Panas Jakarta combines local sensor information and vulnerability mapping; programme page retains BMKG meteorological warning authority. Accessible rendering supplied no live data, so uptime and clinical validity are not established. Pantau Panas Jakarta 
  • Reported, not evaluated CoCHAP describes developing city thresholds and a tiered system in Medan/Surabaya; historical design cannot be labelled a currently operating warning system. CoCHAP Indonesia programme account 

Rules for heat at work

Official guidance or data Permenaker5/2018 is in force. Articles7–9 establish assessment/control and include ventilation, drinking water and exposure-time controls; Annex provides ISBB/WBGT limits related to workload and work allocation. No universal ambient-temperature stop-work limit or blanket paid-heat-leave entitlement is inferred. Permenaker 5/2018 current register  · Permenaker 5/2018 regulation text 

Cooling and buildings

Cooling design ideas (proposed)

Money for protection

Costing: next step

Obtain date-specific installed IDR quotations, separate energy/water/staff/maintenance/replacement, then use a dated published FX rate. Neither programme size nor loan principal is a universal protection cost.

Gaps in what we found

  • No harmonised nationwide city heat-health exposure ranking verified.
  • No complete, legally adopted, funded city HAP document retrieved for the seven snapshots; Surabaya drafting is reported separately.
  • Comparable indoor/night exposure, health outcomes, worker income and actual budget execution remain incomplete in collected evidence.
  • Grant/loan eligibility, recurrent maintenance and tenant/disability/migrant access require programme-level verification.

Ways to help (proposed)

  • Contribute local evidence and delivery protocols to the KATALIS-HEAT partners, subject to invitation.
  • Support PMI/city programmes in Medan and Surabaya with warning-to-action tests and inclusion audits.
  • Connect low-income housing technical assistance with grants for households unsuitable for debt.
  • Prepare health-facility/school cooling portfolios with maintenance and power-failure budgets.

Known, inferred, uncertain

Known: Official heat-health activity, labour rules, cooling policies and implementation examples exist. Inferred: Their connection offers a place-based delivery opportunity. Uncertain: National comparability, enforceability of specific heat actions, local budget execution and health effectiveness.

Paying when heat strikes

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

See Indonesia, layer by layer

Cities

Jakarta

Heat context: Climate: Hot-humid lowland urban setting; assess hot nights and indoor conditions separately. Climate interpretation: Contextual transfer assessment, not a measured citywide humidity threshold. Three-city surface urban heat analysis  · Jakarta official multi-agency heat response  Night heat: City-specific harmonised night-exposure series not verified; do not infer from satellite daytime surface heat.

Official heat plans: Reported, not evaluated Heat-health training and public risk platform documented; adopted integrated HAP/decree not retrieved. Jakarta heat-health workforce training  · Pantau Panas Jakarta  · Jakarta official multi-agency heat response 

Agencies documented:

  • Dinas Kesehatan
  • Bappeda
  • BPBD
  • Dinas Pendidikan
  • Dinas Pertamanan dan Hutan Kota
  • Dinas Lingkungan Hidup

Warnings: National context: See country.warning_systems; BMKG official channels. Local evidence: Jakarta heat-health workforce training  · Pantau Panas Jakarta  · Jakarta official multi-agency heat response  Local operational thresholds: Not verified in reviewed adopted document; Jakarta programme status described separately.

Rules for heat at work: Country reference: country.occupational_heat_rules Local enforcement evidence: Not verified

Cooling and buildings: Official guidance or data Jakarta green-building60/2022 repealed; national framework applies as described by44/2023. Jakarta repeal of 2022 green-building regulation  · National green-building assessment regulation 

Money for protection: Costs: Currency: IDR Note: No comparable local package quotation verified. Verified local heat budget: Not verified Country mechanisms: See country.finance_mechanisms; individual city or applicant eligibility not assumed.

Gaps in what we found:

  • Platform live feed did not populate in accessible rendering; sensor validation, night reach and departmental budgets need review.

A place to start (proposed): Connect clinics and neighbourhood outreach to actual warning-to-action responsibilities; add renter-safe home retrofits.

Known, inferred, uncertain: Known: Satellite analysis and official heat-response account document heat concern. Inferred: Connect clinics and neighbourhood outreach to actual warning-to-action responsibilities; add renter-safe home retrofits. Uncertain: Platform live feed did not populate in accessible rendering; sensor validation, night reach and departmental budgets need review.

Boundary: Special-region provincial urban jurisdiction; not a single ordinary municipality

Selection basis: Measured in a study Satellite analysis and official heat-response account document heat concern. Three-city surface urban heat analysis  · Jakarta official multi-agency heat response 

Rank status: Not verified; selected documented heat-concern cases, not asserted top-seven exposure ranking.

Agencies to engage (proposed):

  • City/provincial planning and health departments
  • Local/provincial labour inspection authority
  • BMKG local offices
  • Building/public-works, education, water and electricity service owners

Agency caveat: Proposed functional coordination; no claim all have accepted roles in a heat task force.

Agency evidence: Jakarta official multi-agency heat response  · Jakarta heat-health workforce training 

Trade-offs to assess (proposed):

  • Occupied-room heat and night recovery; avoid using LST as health exposure.
  • Equipment electricity cost, peak demand, refrigerant/service safety and outage fallback.
  • Water source, drainage, seasonal humidity and maintenance before any evaporative cooling or new greening.
  • Structural/fire safety, roof access, tenure and possible rent displacement before retrofit.
  • Paid recovery, gendered care, disability access and migrant/informal-worker reach.

Surabaya

Heat context: Climate: Hot-humid with seasonal dry periods; do not equate dry season with reliably dry air. Climate interpretation: Contextual transfer assessment, not a measured citywide humidity threshold. Three-city surface urban heat analysis  · CoCHAP Indonesia programme account  Night heat: City-specific harmonised night-exposure series not verified; do not infer from satellite daytime surface heat.

Official heat plans: Reported, not evaluated HAP drafting reported8October 2026 with targetNovember 2026; adoption and legal instrument not verified. Surabaya heat-action-plan drafting  · CoCHAP Indonesia programme account 

Agencies documented:

  • PMI Surabaya
  • BPBD Surabaya (planning meeting, secondary reporting)

Warnings: National context: See country.warning_systems; BMKG official channels. Local evidence: Surabaya heat-action-plan drafting  · CoCHAP Indonesia programme account  Local operational thresholds: Not verified in reviewed adopted document; Jakarta programme status described separately.

Rules for heat at work: Country reference: country.occupational_heat_rules Local enforcement evidence: Not verified

Cooling and buildings: Official guidance or data Use national building and appliance framework; dedicated local heat-building mandate not verified. National green-building assessment regulation  · ESDM conservation regulation and standards catalogue 

Money for protection: Costs: Currency: IDR Note: No comparable local package quotation verified. Verified local heat budget: Not verified Country mechanisms: See country.finance_mechanisms; individual city or applicant eligibility not assumed.

Gaps in what we found:

  • Plan drafting is secondary reporting; full adopted plan, thresholds and operating budgets require direct confirmation.

A place to start (proposed): Contribute costed departmental actions, paid-rest demonstrations and community warning tests during plan preparation.

Known, inferred, uncertain: Known: Satellite research and community programme documents establish a heat-relevant setting. Inferred: Contribute costed departmental actions, paid-rest demonstrations and community warning tests during plan preparation. Uncertain: Plan drafting is secondary reporting; full adopted plan, thresholds and operating budgets require direct confirmation.

Boundary: City; East Java

Selection basis: Measured in a study Satellite research and community programme documents establish a heat-relevant setting. Three-city surface urban heat analysis  · CoCHAP Indonesia programme account 

Rank status: Not verified; selected documented heat-concern cases, not asserted top-seven exposure ranking.

Agencies to engage (proposed):

  • City/provincial planning and health departments
  • Local/provincial labour inspection authority
  • BMKG local offices
  • Building/public-works, education, water and electricity service owners

Agency caveat: Proposed functional coordination; no claim all have accepted roles in a heat task force.

Agency evidence: Surabaya heat-action-plan drafting 

Trade-offs to assess (proposed):

  • Occupied-room heat and night recovery; avoid using LST as health exposure.
  • Equipment electricity cost, peak demand, refrigerant/service safety and outage fallback.
  • Water source, drainage, seasonal humidity and maintenance before any evaporative cooling or new greening.
  • Structural/fire safety, roof access, tenure and possible rent displacement before retrofit.
  • Paid recovery, gendered care, disability access and migrant/informal-worker reach.

Semarang

Heat context: Climate: Lowland-to-upland variation; humid heat context requires neighbourhood measurements. Climate interpretation: Contextual transfer assessment, not a measured citywide humidity threshold. Semarang surface heat study  Night heat: City-specific harmonised night-exposure series not verified; do not infer from satellite daytime surface heat.

Official heat plans: Reported, not evaluated No adopted heat-specific city plan retrieved; UNDIP is a KATALIS partner, which does not establish city pilot selection. UNDIP KATALIS-HEAT partner account 

Warnings: National context: See country.warning_systems; BMKG official channels. Local evidence: UNDIP KATALIS-HEAT partner account  Local operational thresholds: Not verified in reviewed adopted document; Jakarta programme status described separately.

Rules for heat at work: Country reference: country.occupational_heat_rules Local enforcement evidence: Not verified

Cooling and buildings: Official guidance or data Municipal green-building Perwal24/2019 is listed in force; national alignment and coverage need checking. Semarang green-building regulation 

Money for protection: Costs: Currency: IDR Note: No comparable local package quotation verified. Verified local heat budget: Not verified Country mechanisms: See country.finance_mechanisms; individual city or applicant eligibility not assumed.

Gaps in what we found:

  • Municipal pilot assignment, thresholds, recurrent budgets and neighbourhood night exposure not verified.

A place to start (proposed): Link UNDIP research to clinic readiness, indoor monitoring and a costed local response protocol.

Known, inferred, uncertain: Known: Landsat study analyses surface heat over 2019–2024; not a clinical or indoor exposure study. Inferred: Link UNDIP research to clinic readiness, indoor monitoring and a costed local response protocol. Uncertain: Municipal pilot assignment, thresholds, recurrent budgets and neighbourhood night exposure not verified.

Boundary: City; Central Java; do not treat metropolitan area as identical

Selection basis: Measured in a study Landsat study analyses surface heat over 2019–2024; not a clinical or indoor exposure study. Semarang surface heat study 

Rank status: Not verified; selected documented heat-concern cases, not asserted top-seven exposure ranking.

Agencies to engage (proposed):

  • City/provincial planning and health departments
  • Local/provincial labour inspection authority
  • BMKG local offices
  • Building/public-works, education, water and electricity service owners

Agency caveat: Proposed functional coordination; no claim all have accepted roles in a heat task force.

Agency limit: Specific heat-taskforce allocation not verified; functional counterparts proposed separately.

Trade-offs to assess (proposed):

  • Occupied-room heat and night recovery; avoid using LST as health exposure.
  • Equipment electricity cost, peak demand, refrigerant/service safety and outage fallback.
  • Water source, drainage, seasonal humidity and maintenance before any evaporative cooling or new greening.
  • Structural/fire safety, roof access, tenure and possible rent displacement before retrofit.
  • Paid recovery, gendered care, disability access and migrant/informal-worker reach.

Bandung

Heat context: Climate: Upland context; a cooler regional baseline does not remove neighbourhood heat disparities. Climate interpretation: Contextual transfer assessment, not a measured citywide humidity threshold. World Bank Unlivable: urban heat in East Asian cities  Night heat: City-specific harmonised night-exposure series not verified; do not infer from satellite daytime surface heat.

Official heat plans: Reported, not evaluated No adopted heat-specific city plan retrieved. World Bank Unlivable: urban heat in East Asian cities 

Warnings: National context: See country.warning_systems; BMKG official channels. Local evidence: World Bank Unlivable: urban heat in East Asian cities  Local operational thresholds: Not verified in reviewed adopted document; Jakarta programme status described separately.

Rules for heat at work: Country reference: country.occupational_heat_rules Local enforcement evidence: Not verified

Cooling and buildings: Official guidance or data Perwali1023/2016 green-building rule listed in force; implementation and current scope need local legal review. Bandung green-building regulation 

Money for protection: Costs: Currency: IDR Note: No comparable local package quotation verified. Verified local heat budget: Not verified Country mechanisms: See country.finance_mechanisms; individual city or applicant eligibility not assumed.

Gaps in what we found:

  • Surface/neighbourhood contrasts do not establish nighttime household exposure or clinical benefit.

A place to start (proposed): Use building research to test occupied-room performance, roof ageing and accessible retrofits.

Known, inferred, uncertain: Known: World Bank documents within-city heat disparities; no nationwide most-exposed ranking inferred. Inferred: Use building research to test occupied-room performance, roof ageing and accessible retrofits. Uncertain: Surface/neighbourhood contrasts do not establish nighttime household exposure or clinical benefit.

Boundary: City; West Java; distinct from wider Bandung basin

Selection basis: Measured in a study World Bank documents within-city heat disparities; no nationwide most-exposed ranking inferred. World Bank Unlivable: urban heat in East Asian cities 

Rank status: Not verified; selected documented heat-concern cases, not asserted top-seven exposure ranking.

Agencies to engage (proposed):

  • City/provincial planning and health departments
  • Local/provincial labour inspection authority
  • BMKG local offices
  • Building/public-works, education, water and electricity service owners

Agency caveat: Proposed functional coordination; no claim all have accepted roles in a heat task force.

Agency limit: Specific heat-taskforce allocation not verified; functional counterparts proposed separately.

Trade-offs to assess (proposed):

  • Occupied-room heat and night recovery; avoid using LST as health exposure.
  • Equipment electricity cost, peak demand, refrigerant/service safety and outage fallback.
  • Water source, drainage, seasonal humidity and maintenance before any evaporative cooling or new greening.
  • Structural/fire safety, roof access, tenure and possible rent displacement before retrofit.
  • Paid recovery, gendered care, disability access and migrant/informal-worker reach.

Medan

Heat context: Climate: Hot-humid lowland setting; local humidity and nights matter. Climate interpretation: Contextual transfer assessment, not a measured citywide humidity threshold. BMKG July 2025 bulletin reporting June observations  · Medan government heat-programme account  Night heat: City-specific harmonised night-exposure series not verified; do not infer from satellite daytime surface heat.

Official heat plans: Reported, not evaluated Government reports PMI/BMKG Urban Heat pilotSeptember 2025–February 2027; an adopted HAP was not retrieved. Medan government heat-programme account  · CoCHAP Indonesia programme account 

Agencies documented:

  • Dinas Kesehatan
  • BPBD
  • PMI Medan
  • BMKG

Warnings: National context: See country.warning_systems; BMKG official channels. Local evidence: Medan government heat-programme account  · CoCHAP Indonesia programme account  Local operational thresholds: Not verified in reviewed adopted document; Jakarta programme status described separately.

Rules for heat at work: Country reference: country.occupational_heat_rules Local enforcement evidence: Not verified

Cooling and buildings: Official guidance or data National building, energy and occupational frameworks; city-specific heat mandate not verified. National green-building assessment regulation  · ESDM conservation regulation and standards catalogue 

Money for protection: Costs: Currency: IDR Note: No comparable local package quotation verified. Verified local heat budget: Not verified Country mechanisms: See country.finance_mechanisms; individual city or applicant eligibility not assumed.

Gaps in what we found:

  • Pilot announcement is not outcome evaluation; adopted triggers, local budget and migrant reach require verification.

A place to start (proposed): Connect existing risk assessment to health-service activation, offline communication and household income protection.

Known, inferred, uncertain: Known: BMKG records a historical hot station event; city government documents heat-risk work. Inferred: Connect existing risk assessment to health-service activation, offline communication and household income protection. Uncertain: Pilot announcement is not outcome evaluation; adopted triggers, local budget and migrant reach require verification.

Boundary: City; North Sumatra; station reading does not describe all greater Medan

Selection basis: Official guidance or data BMKG records a historical hot station event; city government documents heat-risk work. BMKG July 2025 bulletin reporting June observations  · Medan government heat-programme account 

Rank status: Not verified; selected documented heat-concern cases, not asserted top-seven exposure ranking.

Agencies to engage (proposed):

  • City/provincial planning and health departments
  • Local/provincial labour inspection authority
  • BMKG local offices
  • Building/public-works, education, water and electricity service owners

Agency caveat: Proposed functional coordination; no claim all have accepted roles in a heat task force.

Agency evidence: Medan government heat-programme account 

Trade-offs to assess (proposed):

  • Occupied-room heat and night recovery; avoid using LST as health exposure.
  • Equipment electricity cost, peak demand, refrigerant/service safety and outage fallback.
  • Water source, drainage, seasonal humidity and maintenance before any evaporative cooling or new greening.
  • Structural/fire safety, roof access, tenure and possible rent displacement before retrofit.
  • Paid recovery, gendered care, disability access and migrant/informal-worker reach.

Makassar

Heat context: Climate: Humid coastal/seasonal setting; distinguish local wet and dry conditions. Climate interpretation: Contextual transfer assessment, not a measured citywide humidity threshold. Makassar local climate zones and surface heat  · Three-city surface urban heat analysis  Night heat: City-specific harmonised night-exposure series not verified; do not infer from satellite daytime surface heat.

Official heat plans: Reported, not evaluated No adopted heat-specific city plan retrieved; Hasanuddin is a KATALIS partner, but city pilot designation not verified. KATALIS-HEAT launch 

Warnings: National context: See country.warning_systems; BMKG official channels. Local evidence: KATALIS-HEAT launch  Local operational thresholds: Not verified in reviewed adopted document; Jakarta programme status described separately.

Rules for heat at work: Country reference: country.occupational_heat_rules Local enforcement evidence: Not verified

Cooling and buildings: Official guidance or data National building/efficiency framework; local heat-specific compliance or funding route not verified. National green-building assessment regulation  · ESDM conservation regulation and standards catalogue 

Money for protection: Costs: Currency: IDR Note: No comparable local package quotation verified. Verified local heat budget: Not verified Country mechanisms: See country.finance_mechanisms; individual city or applicant eligibility not assumed.

Gaps in what we found:

  • Surface hotspots need ground validation; municipal pilot, legal authority and actual service budgets remain unclear.

A place to start (proposed): Combine Hasanuddin health capability with market/workplace exposure assessment and maintainable shade.

Known, inferred, uncertain: Known: Local-climate-zone and three-city studies analyse surface heat; no direct air/health effect size transferred. Inferred: Combine Hasanuddin health capability with market/workplace exposure assessment and maintainable shade. Uncertain: Surface hotspots need ground validation; municipal pilot, legal authority and actual service budgets remain unclear.

Boundary: City; South Sulawesi

Selection basis: Measured in a study Local-climate-zone and three-city studies analyse surface heat; no direct air/health effect size transferred. Makassar local climate zones and surface heat  · Three-city surface urban heat analysis 

Rank status: Not verified; selected documented heat-concern cases, not asserted top-seven exposure ranking.

Agencies to engage (proposed):

  • City/provincial planning and health departments
  • Local/provincial labour inspection authority
  • BMKG local offices
  • Building/public-works, education, water and electricity service owners

Agency caveat: Proposed functional coordination; no claim all have accepted roles in a heat task force.

Agency limit: Specific heat-taskforce allocation not verified; functional counterparts proposed separately.

Trade-offs to assess (proposed):

  • Occupied-room heat and night recovery; avoid using LST as health exposure.
  • Equipment electricity cost, peak demand, refrigerant/service safety and outage fallback.
  • Water source, drainage, seasonal humidity and maintenance before any evaporative cooling or new greening.
  • Structural/fire safety, roof access, tenure and possible rent displacement before retrofit.
  • Paid recovery, gendered care, disability access and migrant/informal-worker reach.

Kupang

Heat context: Climate: Seasonally drier comparator; measure humidity and water availability before evaporative/greening choices. Climate interpretation: Contextual transfer assessment, not a measured citywide humidity threshold. BMKG persistent hot weather explanation  · Cool Roofs Indonesia university implementation account  Night heat: City-specific harmonised night-exposure series not verified; do not infer from satellite daytime surface heat.

Official heat plans: Reported, not evaluated No adopted heat-specific city plan retrieved. BMKG persistent hot weather explanation 

Warnings: National context: See country.warning_systems; BMKG official channels. Local evidence: BMKG persistent hot weather explanation  Local operational thresholds: Not verified in reviewed adopted document; Jakarta programme status described separately.

Rules for heat at work: Country reference: country.occupational_heat_rules Local enforcement evidence: Not verified

Cooling and buildings: Official guidance or data National frameworks apply subject to scope; no verified municipal cool-roof mandate. National green-building assessment regulation  · ESDM conservation regulation and standards catalogue 

Money for protection: Costs: Currency: IDR Note: No comparable local package quotation verified. Verified local heat budget: Not verified Country mechanisms: See country.finance_mechanisms; individual city or applicant eligibility not assumed.

Gaps in what we found:

  • Current condition of historical roofs, household night heat and recurrent water/power costs not verified.

A place to start (proposed): Test water-light shade/roof solutions and clinic/school readiness with local implementers.

Known, inferred, uncertain: Known: BMKG documents a hot-weather observation; UPI lists historical cool-roof deployment. Inferred: Test water-light shade/roof solutions and clinic/school readiness with local implementers. Uncertain: Current condition of historical roofs, household night heat and recurrent water/power costs not verified.

Boundary: City; East Nusa Tenggara; wider Timor/NTT not interchangeable

Selection basis: Official guidance or data BMKG documents a hot-weather observation; UPI lists historical cool-roof deployment. BMKG persistent hot weather explanation  · Cool Roofs Indonesia university implementation account 

Rank status: Not verified; selected documented heat-concern cases, not asserted top-seven exposure ranking.

Agencies to engage (proposed):

  • City/provincial planning and health departments
  • Local/provincial labour inspection authority
  • BMKG local offices
  • Building/public-works, education, water and electricity service owners

Agency caveat: Proposed functional coordination; no claim all have accepted roles in a heat task force.

Agency limit: Specific heat-taskforce allocation not verified; functional counterparts proposed separately.

Trade-offs to assess (proposed):

  • Occupied-room heat and night recovery; avoid using LST as health exposure.
  • Equipment electricity cost, peak demand, refrigerant/service safety and outage fallback.
  • Water source, drainage, seasonal humidity and maintenance before any evaporative cooling or new greening.
  • Structural/fire safety, roof access, tenure and possible rent displacement before retrofit.
  • Paid recovery, gendered care, disability access and migrant/informal-worker reach.

Programmes

  • Reported, not evaluated KATALIS-HEAT Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Develops heat-health evidence and action-planning capability. Inferred: Potential shared learning/implementation fit. Uncertain: No completed pilot outcome or adopted national standalone heat-health plan verified. Implementation stage: Launched July 2026; research and municipal-planning work announced. Geographies:
    • Indonesia; municipal pilot city not verified
     Description: Develops heat-health evidence and action-planning capability. KATALIS-HEAT launch  · UNDIP KATALIS-HEAT partner account  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: No completed pilot outcome or adopted national standalone heat-health plan verified.
  • Reported, not evaluated Jakarta Heat Resilience and Health Initiative / Pantau Panas Jakarta Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Combines health-worker capacity with local risk information. Inferred: Potential shared learning/implementation fit. Uncertain: Live sensor feed did not populate in accessible rendering; no health-effect evaluation or warning validation verified. Implementation stage: Training delivered; programme platform accessible. Geographies:
    • Jakarta
     Description: Combines health-worker capacity with local risk information. Jakarta heat-health workforce training  · Pantau Panas Jakarta  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: Live sensor feed did not populate in accessible rendering; no health-effect evaluation or warning validation verified.
  • Reported, not evaluated Coastal City Resilience and Extreme Heat Action Project (CoCHAP), Indonesia Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Risk perception, outreach and institutional collaboration. Inferred: Potential shared learning/implementation fit. Uncertain: Historical donor attribution is not a current funding guarantee; planned warnings not evidence of operational system. Implementation stage: Historical documented activities through 2024; subsequent programme continuity would be worth verifying. Geographies:
    • Medan
    • Surabaya
     Description: Risk perception, outreach and institutional collaboration. CoCHAP Indonesia programme account  · Indonesia heat-risk communication note  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: Historical donor attribution is not a current funding guarantee; planned warnings not evidence of operational system.
  • Reported, not evaluated Medan Urban Heat resilience pilot Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Heat-risk and impact assessment with city health-data cooperation. Inferred: Potential shared learning/implementation fit. Uncertain: Programme dates are reported; adopted HAP, operational thresholds and outcomes not verified. Implementation stage: City reports September 2025–February 2027 programme. Geographies:
    • Medan
     Description: Heat-risk and impact assessment with city health-data cooperation. Medan government heat-programme account  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: Programme dates are reported; adopted HAP, operational thresholds and outcomes not verified.
  • Reported, not evaluated Surabaya city heat-action-plan preparation Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Departmental responsibilities and vulnerable-group/risk mapping being assembled. Inferred: Potential shared learning/implementation fit. Uncertain: Secondary reporting used because primary adopted document not retrieved; adoption, budget and legal force not verified. Implementation stage: Drafting reported October 2026; completion targetNovember 2026 is future. Geographies:
    • Surabaya
     Description: Departmental responsibilities and vulnerable-group/risk mapping being assembled. Surabaya heat-action-plan drafting  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: Secondary reporting used because primary adopted document not retrieved; adoption, budget and legal force not verified.
  • Reported, not evaluated Cool Roofs Indonesia Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Solar-reflective roof deployment and local material capability. Inferred: Potential shared learning/implementation fit. Uncertain: Source temperature claims lack sufficiently clear metric/sample/baseline; not reused; current maintained coverage not verified. Implementation stage: Historical university implementation reported 2022. Geographies:
    • Tangerang
    • Bandung
    • Jakarta
    • Kupang; further locations in source
     Description: Solar-reflective roof deployment and local material capability. Cool Roofs Indonesia university implementation account  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: Source temperature claims lack sufficiently clear metric/sample/baseline; not reused; current maintained coverage not verified.
  • Reported, not evaluated Incremental Climate Adaptation Loan (ICAL) / PENEDUH Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Combines incremental roof/ventilation upgrades, technical assistance and member loans. Inferred: Potential shared learning/implementation fit. Uncertain: Implementer outcomes not independently evaluated; borrower terms, tenant access, health effects and cost breakdown need checking. Implementation stage: Launched May 2025; implementation and expansion account October 2026. Geographies:
    • Indonesia; Jakarta household example
     Description: Combines incremental roof/ventilation upgrades, technical assistance and member loans. Build Change/KOMIDA housing adaptation  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: Implementer outcomes not independently evaluated; borrower terms, tenant access, health effects and cost breakdown need checking.
  • Official guidance or data Programme for Energy Efficiency in Buildings (PEEB) Cool Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Combines building investment finance with an enabling facility. Inferred: Potential shared learning/implementation fit. Uncertain: No open Common Shade/NGO grant or specific municipal entitlement established. Implementation stage: Programme facility design/roles verified; current Indonesia disbursements not verified. Geographies:
    • Indonesia within multi-country scope
     Description: Combines building investment finance with an enabling facility. PEEB Cool implementation structure  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Analytical inference Limits: No open Common Shade/NGO grant or specific municipal entitlement established.
  • Design concept Gili Matra coral-reef parametric insurance prototype Costs: Currency: IDR Note: Itemised comparable local costs not verified; funding is distinct from cost and loan principal. Known, inferred, uncertain: Known: Marine-temperature-trigger design for emergency reef response/restoration. Inferred: Potential shared learning/implementation fit. Uncertain: Comparative marine-heat finance example, not human heat-income insurance or proof of payout effectiveness. Riskpools mapping denotes shared protection pathway, not proof of pooled risk vehicle. Implementation stage: Prototype and toolkit described May 2026; bound coverage/payout not verified. Geographies:
    • Gili Matra, North Lombok - outside the seven city snapshots
     Description: Marine-temperature-trigger design for emergency reef response/restoration. Coral-reef insurance prototype  Effect: Health or income effect: Not independently verified in this snapshot Mapping basis: Outside the terrestrial heat-loop taxonomy; comparative marine-heat finance only. Limits: Comparative marine-heat finance example, not human heat-income insurance or proof of payout effectiveness. Riskpools mapping denotes shared protection pathway, not proof of pooled risk vehicle.

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Extreme heat in Indonesia: plans, warnings, rules at work, cooling, money for protection, cities, programmes and who is working on it.

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