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Cities / Cotonou

Cotonou

Benin

Cotonou is projected to face several climate hazards that pose serious risks to its residents and environment. Frequent heatwaves are expected to occur, exacerbating health issues and stress on resources. Prolonged drought conditions will likely affect water availability, which can exacerbate food security challenges and increase competition for scarce resources. Additionally, the city is anticipated to experience elevated risks of arbovirus transmission, raising concerns about diseases such as dengue and Zika, which thrive in warmer climates. Furthermore, the threat of malaria transmission is expected to rise due to changing environmental conditions, creating additional public health challenges. These factors collectively contribute to the vulnerabilities facing the city, highlighting urgent needs for adaptation and resilience planning in the face of projected climate impacts.

Hazard Outlook

How will Cotonou's projected climate hazards compare to other cities under a 3.0°C future warming scenario?

Longest Heatwave

91st percentile Very high exposure

Cotonou may experience heatwaves lasting up to 9 days, among the highest of all other cities.

Cotonou
0.0 Shorter → Longer 92

Elevation

2nd percentile Very high exposure

At 1 m elevation, Cotonou faces very high risk from coastal flooding and sea level rise.

Cotonou
-8.0 Lower → Higher 4k

Maximum Rainfall

34th percentile Moderate exposure

Cotonou's projected maximum rainfall of 9 mm is near the median of cities globally.

Cotonou
0.0 Lower → Higher 35

Maximum Temperature

21st percentile Lower exposure

Cotonou's projected maximum temperature of 8.4°C is lower than most cities globally under a 3.0°C warming scenario.

Cotonou
5.0 Cooler → Hotter 13

Heavy Rainfall Days

14th percentile Lower exposure

With 9 days of heavy rainfall expected, Cotonou ranks lower than most cities for extreme precipitation events.

Cotonou
0.0 Fewer → More 36

Exposure Summary

Heatwave
Elevation
Max Rain
Max Temp
Heavy Rain

Adaptation Priorities

Cotonou faces high exposure to heatwave, elevation. These areas may warrant priority attention in adaptation planning.

Data source: Climate projections from the IPCC AR6 scenario analysis. See our methodology for details on how we process and interpret this data.

Deployed Solutions

Deployed climate adaptation technologies identified in Cotonou.

No solutions have been documented for Cotonou.

This is an archived snapshot of the database.

Recommended Solutions

Proven solutions from similar cities that could help diversify Cotonou's resilience portfolio

Community-Led Participatory Flood Risk Mapping Using Open-Source Tools
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Continuous Ambient Air Quality Monitoring Stations (CAAQMS)
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Lagos State Emergency Command and Control Centre
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Integrated Hydro-Meteorological Warning System
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The Integrated Hydro-Meteorological Warning System (IHWS) was implemented in Central Vietnam, specifically in Da Nang City and Quang Nam Province, serving a population of 1,300,000 inhabitants in areas particularly vulnerable to natural disasters.
Inclusive Sign Language Early Warning System for Deaf Communities
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An inclusive early warning system was developed and piloted in Da Nang to address critical gaps in disaster communication for the deaf and hard of hearing (DHH) community.
Visual Climate Adaptation Platform for Cyclone Risk Assessment
64%
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CSIRO Australia conducted a demonstration study of the Visual Climate Adaptation Platform (VCAP) in Da Nang, a GIS-based platform enabling users to assess impact, costs and benefits of adaptation options for housing or infrastructure subjected to natural hazards.
My Tree Urban Georeferencing Platform
63%
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Salvador's Municipal Secretary of Sustainability, Innovation and Resilience developed the 'My Tree' platform, an open web and mobile georeferencing system designed to register and monitor tree plantings performed by both municipal authorities and citizens throughout the city.
Urban Heat Island Mapping and Monitoring Platform
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Salvador developed an online platform to map and monitor urban heat islands, supporting the city's public administration in adapting to climate change effects.
Reservoir Water Level Monitoring and Early Warning System
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Da Nang planned to build warning systems linked to water level at Truc Dong and Hoc Khe reservoirs as part of investing in hydro-meteorologic monitoring and early warning systems for flood, flash flood and reservoir breakdown.
Aquifer Mapping Integration for Groundwater Governance
64%
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The Pune Municipal Corporation (PMC) is integrating comprehensive aquifer mapping into its enterprise Geographic Information System (GIS) to enable scientific groundwater management and transparent resource governance.