Haiti Climate, Multi-Hazard Disaster Risk And Vulnerability

Haiti is one of the most hazard-exposed and climate-vulnerable countries in the Caribbean. Its risk profile is shaped by its location on the Atlantic hurricane belt, steep mountainous terrain, extensive coastal exposure, deforestation, fragile infrastructure, poverty, food insecurity, political instability, and limited institutional capacity. More than 96% of Haiti’s population is exposed to major shocks such as hurricanes, floods and earthquakes, according to the World Bank and GFDRR World Bank Haiti overview, GFDRR.

1. Climate Context

Haiti has a hot and humid tropical climate, with a long rainy season from around May to November. The country is highly exposed to tropical cyclones, intense rainfall, drought, heat stress, coastal flooding and sea-level rise. Climate change is expected to increase temperatures, intensify hydrometeorological extremes, worsen rainfall variability, and increase the severity of climate-related hazards. A World Bank climate and health assessment notes that Haiti is vulnerable to sea-level rise, rising temperatures, hurricanes and heavy rainfall, which are projected to become more frequent and intense World Bank climate-health assessment.

2. Main Hazards

3. Exposure And Vulnerability Drivers

Haiti’s disaster risk is intensified by very high social and institutional vulnerability. The country has widespread poverty, high food insecurity, political instability, gang violence, internal displacement, weak public services, degraded ecosystems and limited coping capacity. The World Bank notes that violence and insecurity have displaced around 1.4 million people as of March 2026, while millions struggle to meet basic food needs World Bank Haiti overview.

Key vulnerability factors include:

• High population exposure to multiple hazards.

• Concentration of people and assets in coastal zones, floodplains and unstable slopes.

• Deforestation, soil erosion and watershed degradation.

• Weak drainage, roads, bridges, housing and public infrastructure.

• Informal urban growth, especially in hazard-prone areas.

• Dependence on rain-fed agriculture and climate-sensitive livelihoods.

• Limited access to health care, WASH, electricity and early warning services.

• Fragile governance, insecurity and constrained disaster-response capacity.

• Repeated shocks that erode household savings, assets and recovery capacity.

4. Sectoral Impacts

Agriculture is highly vulnerable because many rural households depend on rain-fed farming, livestock and natural resources. Drought, floods, hurricanes, crop disease, soil erosion and market disruption directly affect food production and household income.

Water resources are exposed to drought, saline intrusion, flood contamination, damaged infrastructure and reduced groundwater recharge in coastal areas.

Health systems face compound pressure from heat, disease outbreaks, malnutrition, damaged facilities, displacement and limited climate-informed disease surveillance.

Infrastructure and settlements are at high risk from earthquakes, hurricanes, floods, landslides and poor construction standards. Roads, bridges, schools, health facilities, ports and electricity systems are frequently disrupted by shocks.

Food security is one of the most serious vulnerability outcomes. Humanitarian reporting for 2026 indicates that millions of people in Haiti face severe food insecurity, driven by insecurity, displacement, economic decline, market disruption and climate shocks Global Humanitarian Overview 2026.

5. Overall Risk Statement

Haiti faces a severe compound-risk environment where hydrometeorological, geological, environmental, health, food-security and conflict-related risks reinforce one another. Climate change is likely to increase the intensity of floods, hurricanes, heat stress, drought impacts and coastal hazards, while socioeconomic fragility reduces the ability of households, institutions and infrastructure systems to anticipate, absorb and recover from shocks.

6. Priority Risk Reduction Needs

• Strengthen multi-hazard early warning systems for floods, hurricanes, drought, landslides, heat and health risks.

• Improve hydro-meteorological observation, forecasting, impact-based warning and last-mile communication.

• Expand flood-risk mapping, landslide susceptibility mapping and coastal-risk assessment.

• Restore watersheds, forests, mangroves and slope-stabilizing ecosystems.

• Upgrade drainage, roads, bridges, shelters, schools and health facilities to hazard-resilient standards.

• Integrate disaster risk, climate adaptation and conflict sensitivity into local development planning.

• Strengthen food-security monitoring, anticipatory action and shock-responsive social protection.

• Improve disaster risk financing, contingency planning and local emergency-response capacity.

• Build climate-resilient health systems, including disease surveillance linked with meteorological information.

        [ High Biophysical Exposure ]               [ Systemic Fragility (FCV) ]
     (Hurricane Belt + Fault Lines)            (Institutional and Civil Unrest)
                   │                                         │
                   ▼                                         ▼
         [ Extreme Sensitivity ]                     [ Weakened Adaptive Capacity ]
   (Devegetated Watersheds, Low-Lying Coast,    (Unregulated Urban Growth, Data Gaps,
      ~70% Rain-fed Agro-Dependency)              Underfunded Civil Protection)
                   │                                         │
                   └────────────────────┬────────────────────┘
                                        ▼
                       [ Compounding Disaster Risk ]
               (Losses Reinforce Chronic Poverty Cycles)