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Country snapshot

Sri Lanka

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

Watch: Sri Lanka and heat · 0:39 · 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

Known: Humid heat and increasing warm nights are documented. Building-code warm-dry zones are not a guarantee of low humidity. Inferred: Use location/season/workload-specific assessment and include recovery at home/night. Uncertain: Comparable current ward-level exposure, health burden and national city ranking. Urban thermal comfort trends in Sri Lanka (opens in a new tab)  · Recent Trends in Climate Extreme Indices over Sri Lanka (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab) 

Who is responsible

Meteorology: dom Disaster coordination: dmc Heat health plan lead: eoh Health emergency: dprd Climate planning: ccs Factory safety: labour Energy code and efficiency: slsea Refrigerants: nou Local delivery: City/district/divisional/public-health responsibilities to confirm case by case NDC Implementation Plan 2021–2030 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · National Health Policy Review 2022 - climate-change focal point (opens in a new tab) 

Warnings

Metric: Heat Index from forecast temperature and relative humidity; not maximum air temperature, workplace WBGT or measured illness DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Non smartphone delivery: Official documents include public/jobsite/home advice and archive has language versions. Tested radio/loudspeaker/door-to-door receipt and action reach not verified. Propose those channels only after local agreement.

Rules for heat at work

Department of Labour Industrial Safety Division (opens in a new tab)  · Factories Ordinance - primary legal text mirrored by EFC (opens in a new tab)  · ILO resilient plantations - safety, health and livelihood recovery (opens in a new tab)  Verified background: Section11 reasonable workroom temperature and ministerial power for regulations; inspectorate role. Legal audit limit: Current regulations, amendments, scope, sector rules and enforcement not fully checked; a blank is not a claim there is no duty. Inclusion: Factory provisions cannot be assumed to reach all street vendors, gig workers, farmers or domestic workers.

Cooling and buildings

Costs: Reason: No verified local comparable intervention lifecycle cost with published FX found; no global price substituted. Urban thermal comfort trends in Sri Lanka (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab)  · National Cooling Policy - ministry draft (opens in a new tab)  · UNEP Ozone Secretariat - Sri Lanka country profile (opens in a new tab)  · UNDP Digital Cooling Project (opens in a new tab)  Approach: Proposed passive-first design assessment combined with appropriate active cooling and reliable operations. Climate suitability: Shade/envelope/ventilation design to match actual humidity, night air, security and air quality; code warm-dry designation is not a psychrometric equipment rule. No universal evaporative or fan-use prescription supplied. Cooling trap: Loop cooling: consider peak electricity, waste heat, refrigerants, affordable operation and power-cut fallback alongside access. Affordability: Income share, tariff-specific bills, landlord permission and maintenance burden not verified; propose measurement before procurement. Policy cautions: Standard existence, label programme, code scope, gazette enforceability, product availability and compliance are separate facts.

Money for protection

Fairness and maladaptation risks

Assessment questions:
  • Can a worker rest without lost income or retaliation?
  • Are women, pregnant people, older people and people with disabilities able to reach and use services?
  • Who owns roofs/land and can cooling improvements raise rents or displace residents?
  • Will shade or tree cover block needed airflow, and who pays for water/upkeep?
  • Are fans/AC usable during outages, with safe wiring and affordable bills?
  • Do sensors collect only necessary data, with consent and a real protective action?
Interpretation: Researcher design questions, not claims these harms occurred in every selected city. Urban thermal comfort trends in Sri Lanka (opens in a new tab)  · UNFPA extreme heat exposure guideline procurement background (opens in a new tab)  · Heat stress in Colombo: understanding impacts and planning for the future (opens in a new tab)  · SLYCAN heat stress/gender-sensitive planning - Colombo fieldwork (opens in a new tab)  · Workplace health and safety under climate stress in Sri Lankan apparel SMEs (opens in a new tab)  · The Heat is On! Towards a Climate Resilient Education System in Sri Lanka (opens in a new tab) 

Ways to help (proposed)

Paying when heat strikes

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

See Sri Lanka, layer by layer

Cities

Colombo

Heat context: Humid lowland/coastal urban heat; night recovery matters. National station trends and modelled evening/night exposures are distinct.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Co-design market/street-worker protection with reliable water/toilets, shade, rest without income loss, consent-based monitoring and night/home follow-up.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: Original worker fieldwork, urban model/data and institutional heat-planning engagement.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Urban thermal comfort trends in Sri Lanka (opens in a new tab)  · Recent Trends in Climate Extreme Indices over Sri Lanka (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Heat stress in Colombo: understanding impacts and planning for the future (opens in a new tab)  · SLYCAN heat stress/gender-sensitive planning - Colombo fieldwork (opens in a new tab)  · Meeting with Colombo Municipal Council on gender-sensitive heat plans (opens in a new tab)  · Temporal and spatial heat exposure in Colombo - COSMA dataset (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Jaffna

Heat context: Northern Dry Zone rainfall designation does not imply continuously dry air; humidity-sensitive warnings and local measurement required.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Link locally agreed exposure observations to school/market/health actions, accessible outreach and water continuity.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: Named district in August 2026 heat advisory and city/site in reported monitoring deployment.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · Closing Heat Data Gaps in Climate Disease Frontline Communities (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Anuradhapura

Heat context: North Central Dry Zone with heat–water–work interaction; humidity and recovery vary by season.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Build an urban–rural learning link around safe water, field-work protection and warning action; keep rural sites and Padawiya separate from city measures.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: North Central warning geography, documented rural water sites in district and wider occupational-health research context.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · Dry Zone regional drought workshop field visit (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Vavuniya

Heat context: Northern inland Dry Zone; rainfall dryness would ideally avoid substituting for measured humidity/WBGT.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Verify warning receipt and usable water, market shade and rest for outdoor/informal workers.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: District explicitly named in August 2026 official warning; North coveredOctober 2026.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Trincomalee

Heat context: Eastern coastal location within code warm-dry district designation; sea/coastal humidity still requires local assessment.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Investigate outdoor livelihoods, queues and clinics with humidity-aware measurement and inclusive local action.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: Eastern-province advisory footprint and code climate context; not a city-level comparative exposure study.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Batticaloa

Heat context: Eastern coastal heat with humid conditions possible; seasonal variation and indoor/night conditions not characterised here.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Assess school/WASH continuity and accessible neighbourhood shade with local health and education institutions.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: Eastern warning footprint and national thermal-comfort research/context; education study not taken as citywide heat measurements.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Urban thermal comfort trends in Sri Lanka (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 22 August 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Kurunegala

Heat context: North Western heat concern; code district classifications can span contexts, so check site humidity and building exposure.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Explore paid work-rest arrangements and market/clinic readiness; map actual authority and operating finance before a pilot.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: North Western provincial footprint in April/October official heat advisories.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Hambantota

Heat context: Southern dry-zone/coastal heat concern; humidity, wind and water constraints are worth measuring rather than assuming.

Official heat plan: Status note: No signed/current city-specific HAP retrieved in this review; absence from collected evidence is not proof none exists.

Money for protection: Note: National/project routes do not establish municipal eligibility, expenditure or ward coverage.

A place to start (proposed): Design water-secure shade/rest and clinic continuity with accessible routes and funded maintenance.

Known: Documented reason to investigate heat in this location/region.

Inferred: Local action is likely to work best when it combines physical protection, livelihoods, services and maintained delivery.

Uncertain: Ward exposure, current approved plan, operating facilities, budget, outreach and protection outcomes.

Selection basis: District specifically named in October 2026 advisory and warm-dry code context.

Geographic caution: Selected documented heat-concern case; provincial/district forecast is not citywide measured exposure or a ranking.

Evidence: Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab) 

National framework source ids: NDC Implementation Plan 2021–2030 (opens in a new tab)  · Sri Lanka NDC 3.0, 2026–2035 (opens in a new tab)  · Cabinet decision on El Niño coordination committees (opens in a new tab)  · Sri Lanka Disaster Management Act No.13 of 2005 (opens in a new tab)  · Department of Labour Industrial Safety Division (opens in a new tab)  · Energy Efficiency Building Code of Sri Lanka (opens in a new tab)  · SLSEA introducing standards (opens in a new tab) 

Warning: Source: DMC weather report archive (opens in a new tab)  · Warm Weather Advisory issued 25 April 2026 (opens in a new tab)  · Warm Weather Advisory issued 19 October 2026 (opens in a new tab)  Issuer actor id: dom Local reach verified: false

Responsibility to confirm:

  • Relevant urban local authority
  • District/divisional disaster coordination
  • Regional health authorities and local Medical Officer of Health/Public Health Inspectors
  • Worker/community representatives and relevant employers

Responsibility note: Proposed verification contacts, not a verified city-specific heat task force or accepted assignment.

Programmes

Who is working on it

Listing does not imply partnership, endorsement or ranking.

Overall

Known: Official forecast advisories, policy commitments, primary research and real funded research/technical programmes exist.

Inferred: Common Shade can connect these to locally agreed operational packages and maintained public capability.

Uncertain: Final plan approvals, current legal schedules, present city budgets, open eligibility, unit costs and independent heat-protection outcomes.

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