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Council on Energy, Environment and Water Integrated | International | Independent
REPORT
Living with Heat in Bangladesh
Heat-Health Risks, Vulnerability and Emerging Responses
08 October, 2026 | Climate Resilience
Abdullah Al Rakib, Dr Sabiha M. Khan, Muksitul Hoque Srijan, Dr Farzana Misha

Suggested citation: Global Heat Health Information Network South Asia Hub. 2026. Living with Heat in Bangladesh: Heat-Health Risks, Vulnerability and Emerging Responses

Overview

This country synthesis report examines Bangladesh’s evolving heat risk and its implications for population health. It focuses on changing heat exposure, the populations and places most at risk, projection models, vulnerability dynamics, and the policy, institutional and on-the-ground responses, including heat action plans emerging across the country. The report assesses Bangladesh’s response to extreme heat, identifies current scenarios in heat-health surveillance, early warning, heat action plans, coordination and implementation, and consolidates priorities for strengthening long-term heat resilience. It also highlights emerging approaches and considers how evidence can inform practical, scalable and context-specific responses to the health impacts of extreme heat.

The report draws on historical and projected temperature trends, heat-risk data, evidence on heat-related health impacts, socioeconomic vulnerabilities and factors influencing exposure. It examines Bangladesh’s heat governance landscape, including national climate and health frameworks, forecasting and early warning systems, health-system preparedness, local heat action initiatives, and interventions led by non-governmental and community-based organisations. It then identifies priorities for strengthening long-term heat resilience, including developing a National Heat Action Plan, establishing heat-health surveillance, mainstreaming heat risk across sectors and levels of governance, and strengthening protection for workers exposed to occupational heat.

Key highlights

  • Bangladesh experiences particularly severe heat conditions across parts of the western, northwestern, and southwestern regions, while high humidity contributes to substantial heat stress in coastal areas even where ambient temperatures are comparatively lower
  • In 2024, Dhaka recorded 135 heatwave days, while Khulna, Rajshahi, and Barishal recorded 144, 126, and 134 days, respectively
  • Climate projections indicate continued warming under different emissions pathways, while changes in land use and urbanisation could intensify urban heat islands. The report highlights the use of human-relevant measures such as Heat Index, WBGT and UTCI.
  • Residents of informal and low-income settlements can face greater indoor heat exposure because of limited insulation, poor ventilation and constrained access to cooling. Women face prolonged heat exposure through cooking, water collection, childcare and other domestic responsibilities, while migrant and informal workers face sustained outdoor heat exposure.
  • Heat is increasingly recognised within national climate and health frameworks, including the National Adaptation Plan and NDC 3.0. The Bangladesh Meteorological Department provides heatwave forecasts and warning bulletins, while the Directorate General of Health Services, with UNICEF support, has developed the National Guideline on Heat-Related Illness and the B.E.A.T. Heat communication framework.
  • Bangladesh does not yet have a national heat action plan, or a centralised governance mechanism specifically dedicated to heat risk
  • The country does not currently have a nationwide, dedicated, and operational heatwave early warning system that systematically connects forecasts with health impacts, social vulnerability, and predefined actions
  • The Narayanganj City Corporation Heat Action Plan combines early warning, preparedness, climate-sensitive urban planning, community awareness, and identification of vulnerable populations
  • The Heat Shield initiative links agricultural extension with heat-health preparedness, while BRAC, Bangladesh Red Crescent Society, IFRC, Save the Children, ADPC and ICLEI South Asia are supporting awareness, anticipatory action, local planning and resilience measures.

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Regional Climate, Health and Community Resilience Lead
"Heat is the quiet risk. Less visible than floods or cyclones, but just as real for health, economy and food security. Bangladesh has started to respond, but we need to move from reacting to anticipating: data-driven early warning, action triggered before the heatwave hits, and government, businesses and communities working together."

Executive summary

Extreme heat is becoming an increasingly important environmental, urban planning, public health and development challenge in Bangladesh. Rising temperatures are occurring alongside prolonged periods of apparent heat, high humidity, rapid urbanisation, and changing land-use patterns, increasing the potential for heat exposure to translate into adverse health and livelihood outcomes.

The burden is also spatially and socially uneven. Population concentration in major urban centres means that heat risk is particularly important where high thermal exposure coincides with dense settlements and limited access to cooling and essential services. Informal settlements, low-income communities, outdoor and informal workers, and women facing substantial domestic and care responsibilities can experience additional constraints to adaptation.

This country synthesis report examines Bangladesh’s changing heat-risk landscape, the populations and places most exposed, the country’s emerging policy and institutional responses, and the practical approaches being developed by government, civil society, development partners and communities.

Key findings

  • Heat exposure is increasing in duration, intensity and spatial significance
    Bangladesh experiences particularly severe heat conditions across parts of the western, northwestern, and southwestern regions, while high humidity contributes to substantial heat stress in coastal areas even where ambient temperatures are comparatively lower (The Daily Star, n.d). The number of annual apparent-heat days has increased markedly over successive decades, and the spatial distribution of heat is significant across major urban centres. In 2024, Dhaka recorded 135 heatwave days, while Khulna, Rajshahi, and Barishal recorded 144, 126, and 134 days respectively (World Bank Group 2024, The Daily Star, n.d). The interaction between temperature, humidity, and population distribution further demonstrates that heat risk cannot be understood through temperature alone.
  • Future warming is likely to intensify heat health pressures, particularly as Bangladesh continues to urbanise
    Climate projections indicate continued warming under different emissions pathways, while ongoing urbanisation and land-use transformation may intensify and expand urban heat islands. Existing GIS and remote-sensing research provides a basis for identifying future thermal hotspots and understanding the relationship between urban expansion and heat (Kafy, Naim et al. 2021). The report highlights the need to move towards a more integrated assessment of future heat exposure using population distribution, climate projections, and human-relevant thermal indices such as Heat Index, WBGT and UTCI.
  • Heat vulnerability is strongly shaped by social, economic and gendered conditions
    Extreme heat does not affect all populations equally. Residents of informal and low-income settlements can face greater indoor heat exposure because of limited insulation, poor ventilation and constrained access to cooling. Women may experience prolonged exposure through cooking, water collection, childcare, and other domestic responsibilities, while women working in sectors such as brick kilns and waste disposal can face additional occupational exposure. Climate-related migration may further increase pressure on urban areas (Rigaud et al. 2021), as migrants often depend on informal occupations associated with prolonged outdoor heat exposure.
  • Bangladesh has important elements of heat preparedness, but they remain fragmented
    Heat is increasingly recognised within national climate and health frameworks, including the National Adaptation Plan and NDC 3.0. The Bangladesh Meteorological Department provides heatwave forecasts and warning bulletins, while the Directorate General of Health Services, with UNICEF support, has developed the National Guideline on Heat-Related Illness and the B.E.A.T. heat communication framework (DGHS and UNICEF 2024). Local governments and development authorities have also initiated measures such as urban greening and protection of cooling land covers. However, Bangladesh does not yet have a national heat action plan or a centralised governance mechanism specifically dedicated to heat risk, and responsibilities remain distributed across multiple institutions.
  • Practical heat-resilience solutions are already emerging through government, civil society and community action
    Bangladesh has examples of early action, health preparedness, urban planning and community-led adaptation that provide a foundation for wider heat action. The Narayanganj City Corporation Heat Action Plan combines early warning, preparedness, climate-sensitive urban planning, community awareness, and identification of vulnerable populations (NCC 2025). The HeatShield initiative links agricultural extension with heat health preparedness, while BRAC, Bangladesh Red Crescent Society, IFRC, Save the Children, ADPC and ICLEI South Asia are supporting awareness, anticipatory action, local planning and resilience measures. Community-level interventions such as rooftop greening and the Karail cool-roof trial further demonstrate the potential of locally appropriate measures to reduce heat exposure.

What Bangladesh needs next

Bangladesh needs to move from a growing set of sectoral and local initiatives towards a more coordinated and proactive heat-health framework. Four priorities emerge from our assessment.

  • Develop a National Heat Action Plan
    A national framework can provide a common basis for coordination among climate, health, disaster management, urban planning, local government, and other relevant sectors, while allowing city and district-level plans to reflect local patterns of exposure and vulnerability. The emerging experience of Narayanganj provides a practical foundation for strengthening city-level implementation within a broader framework.
  • Develop a heat-health surveillance system
    Stronger integration between BMD forecasting and DGHS health information systems could support systematic documentation of heat-related illness, identification of heat-health hotspots, and more actionable early warning. Such a system would help connect meteorological information with health-sector preparedness and community response.
  • Integrate heat risk into sectoral planning
    Heat-health considerations need to be embedded within urban and spatial planning, disaster management, environmental management, public health, and other relevant sectoral frameworks. Protecting green and blue spaces, strengthening climate-responsive urban development, and incorporating thermal considerations into planning can help address the structural drivers of heat exposure.
  • Strengthen heat protection within occupational health and safety
    Outdoor and informal workers face sustained heat exposure, often while having limited flexibility to reduce working hours or avoid dangerous conditions because of livelihood requirements. Heat-health action therefore needs to connect occupational exposure with workplace protection, adaptive measures, and health outcomes, with particular attention to workers in heat-intensive and poorly ventilated environments.

The GHHIN South Asia Hub can contribute to this transition by convening stakeholders, strengthening the evidence base, supporting knowledge exchange, advancing heat forecasting and heat-health research, and building institutional capacity for heat-health action. In Bangladesh, these efforts can help connect existing national, local, civil society, and community initiatives into a more coherent approach that is anticipatory, locally informed, and responsive to the populations facing the greatest heat-health risks.

FAQs

Frequently Asked Questions

  • What is Bangladesh doing to prepare for extreme heat?

    Bangladesh has incorporated heat into national climate and health frameworks, including the National Adaptation Plan and NDC 3.0. The Bangladesh Meteorological Department provides heatwave forecasts and warning bulletins, while the Directorate General of Health Services (with support from UNICEF) has developed the National Guideline on Heat-Related Illness and the B.E.A.T. Heat communication framework. In terms of policy, there is already a recognized heat action plan (HAP) for Narayanganj City Corporation (NCC), with similar initiatives already present for Dhaka, Rajshahi, and other major urban areas.

  • What solutions does the report propose for long-term resilience?

    The report sets out four priorities. First, it calls for a National Heat Action Plan to coordinate climate, health, disaster management, urban planning and local government, with city- and district-level plans that reflect local risk. Second, it recommends a heat-health surveillance system that links Bangladesh Meteorological Department forecasts with Directorate General of Health Services data, so that heat-related illness is tracked and early warnings lead to action. Third, it urges building heat risk into sectoral planning, especially urban and spatial planning, disaster management and public health. Finally, it calls for stronger heat protection at work for outdoor and informal workers, particularly those in hot and poorly ventilated workplaces.

  • What is the key takeaway from the report?

    Bangladesh has the building blocks for heat resilience: forecasting, health guidelines, a first city heat action plan, and action by civil society and communities. But these efforts remain fragmented. The priority now is to bring them under one national framework, link heat forecasts with health action, and protect the people most exposed, especially residents of informal settlements and outdoor workers.

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