Climate Impacts Monitoring and Analysis Platform - CLIMAP

Monitoring and analysis of climatic impacts. A tool developed by OCHA ROWCA to centralize data collection on the impacts of extreme weather events in West and Central Africa.

CLIMAP overview video
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Published documents

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ACMAD -West and Central Africa Flooding Outlook 15-19 July 2025

ACMAD -West and Central Africa Flooding Outlook 15-19 July 2025

In the next 5 days, heavy rainfall generated by deep convective clouds is expected in Guinea, Sierra Leone, Nigeria, and Cameroon. - Heavy rainfall (100-150mm): is very likely in Senegal, nothern, and western Bissau Guinea, western, and northern Guinea, southern Mali,eastern Nigeria, central, and outhwestern Cameroon, northwestern Sierra Leonne, eastern Nigeria, central, and southwestern Cameroon. - Moderate rainfall (50-100mm): is very likely in southern Senegal, eastern Gambia, central to eastern Bissau Guinea, northern Guinea, northern and eastern Guinea, southern Mali, across Sierra Leone, northwestern Liberia, northern Côte d’Ivoire, southwestern Burkina Faso, central, and eastern Nigeria, northern, eastern, and western Cameroon, southern Chad, northern Central African Republic, and northeastern Democratic Republic of the Congo.

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West and Central Africa: Flooding Situation 2024 Overview - as of 10 February 2025

West and Central Africa: Flooding Situation 2024 Overview - as of 10 February 2025

The rainy season across West and Central Africa is coming to an end; however, the effects of flooding persist for many affected communities. The region continues to experience the impacts of climate change, including both slow-onset phenomena, such as rising temperatures and droughts, and sudden events, such as floods. In 2024, a total of 7.5 million people were affected by flooding across 18 countries in West and Central Africa. Chad was the hardest hit, with 1.9 million affected people, followed by Niger (1.5 million), Nigeria (1.3 million), and the Democratic Republic of the Congo (1.2 million). Cameroon, Mali, Guinea, and the Republic of Congo had a combined total of over 1.1 million affected people. Floods also severely disrupted livelihoods and access to basic social services, damaging or destroying more than 649,000 homes in 15 countries, affecting 1,277 schools and 221 health facilities. At least 1,527 people were reported dead, with 4,499 others injured. Additionally, 1.7 million people were displaced across 13 countries, with Nigeria, the Democratic Republic of the Congo, and Cameroon being the most affected, accounting for at least 67 per cent of reported internally displaced persons. Furthermore, the adverse effects of the floods particularly impacted people and their livelihoods. More than 960,000 hectares of agricultural land become unsuitable for farming and livestock production, resulting in a significant impact on food security and nutrition of vulnerable communities, far exceeding those of previous years. An estimated 128,000 heads of cattle were also swept away by the floods. These events have worsened the overall humanitarian situation. Urgent prevention and mitigation measures are needed to reduce the impact of climate events, especially in densely populated and flood-prone areas.

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West and Central Africa: 2025 Monitoring of the flooding situation - As of 21 August 2025

West and Central Africa: 2025 Monitoring of the flooding situation - As of 21 August 2025

Flooding continues to disrupt people’s lives in 2025. The impact on livelihoods and infrastructure is severe. Some 984,000 people have been affected by floods across 10 countries in West and Central Africa. The Democratic Republic of Congo (DRC) is the worst affected, with 658,000 people, followed by Nigeria with 127,000 and Cabo Verde with 95,000. Loss of life and injury highlight the human toll. Floods have claimed the lives of at least 534 people and and 473 have been injured in 2025, with 54 fatalities as well as 296 injuries recorded between 1 July and 16 August. Floods forced over 20,000 people to move to seek safety across the DRC, Nigeria, Cabo Verde and Ghana. Of these, 73 per cent are in the DRC, 24 per cent in Nigeria, while 3 per cent in Ghana and Cabo Verde combined. Floods have left widespread destruction across the region. Between 1 July and 16 August, they damaged or destroyed 46,000 houses, disrupted 214 health facilities and 115 schools, and inundated 363 hectares of cropland. Since the start of the rainy season, nearly 9,000 hectares of farmland have been rendered unusable and about 4,200 livestock lost. More losses are expected as data is still coming in. Pending updates from Senegal and Chad could reveal even greater damage, with potential harm on agriculture. This threatens food and nutrition security and might rise the need for humanitarian aid.

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Latest articles

Read the latest editorial content and public updates.

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Regional response notes: data gaps and next steps
CLIMAP Admin
CLIMAP Admin
OCHA ROWCA Demo
Updates

Regional response notes: data gaps and next steps

A short editorial note describing the main data gaps and the operational steps still needed.

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Data snapshot: how to read the latest figures
CLIMAP Admin
CLIMAP Admin
OCHA ROWCA Demo
Briefings

Data snapshot: how to read the latest figures

A practical guide to the figures shown in the dashboard and on the public landing page.

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Flooding briefing: what the season is revealing
CLIMAP Admin
CLIMAP Admin
OCHA ROWCA Demo
Briefings

Flooding briefing: what the season is revealing

A concise editorial update on the current flooding season and the immediate response priorities.

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Frequently asked

Here you'll find detailed answers to the most frequently asked questions about our platform. Whether you want to know more about our features, how to become a reporter or what information is relevant to report, our FAQ is here to guide you and provide you with all the information you need.

FAQ illustration

What is CLIMAP?

CLIMAP (Climate Impacts Monitoring and Analysis Platform) is a web tool developed by OCHA ROWCA designed to centralize the collection of data on the impacts of extreme climate events in West and Central Africa.

CLIMAP offers several features, including:
  • Data collection on the humanitarian impact of floods and other climate events through a submitted form.
  • A dashboard for monitoring alerts and disaster forecasts from various sources, including First Alerts by DataMinr, which uses artificial intelligence to scan the web and provide real-time information.
  • Integration of Disaster Aware forecasts, which anticipate floods and other climate events.

Anyone interested in collecting information on the consequences of floods and climate events can become a reporter. Simply fill out the account request form, follow the steps to activate it, and you can start reporting information.

CLIMAP focuses on data related to the effects of floods and natural disasters on populations, especially the most vulnerable. Any information, data, maps, photos, or infographics, with identified and specified sources, that helps estimate the damage suffered by populations due to these disasters, is considered relevant to report.

Contact us at: ocha-climap@un.org