# Flooding in West Africa

> Live situation record from CLSTR: https://clstr.news/situations/flooding-in-west-africa
> Updated: 2026-09-22T13:17:27.000Z. Sources: 16. Developments: 3.

Heavy rainfall has caused significant flooding across West African regions, including Sierra Leone and Guinea.

In Makeni, Sierra Leone, flash flooding on September 1, 2026, submerged major roads and thoroughfares, causing economic damage to local businesses and traders. Observers attributed the severity of the impact to inadequate or blocked drainage systems, while experts linked the extreme weather patterns to climate change and urban growth.

In Guinea, intense localized precipitation has led to severe flooding in Conakry, Coyah, and Manéah. In the Grand Conakry region and Coyah prefecture, the overflowing Sarinka River submerged neighborhoods such as Laminayah, Sambayah, Tougandé, and Fily 1. The flood pressure caused a bridge in Sambayah to collapse and damaged the Fily-Tougandé bridge, disrupting strategic transport routes. Many families have been forced to evacuate, with the Maison des Jeunes in Coyah serving as a temporary shelter. In Manéah, specifically the Bananérais sector, water levels reached up to three meters, destroying or submerging multiple homes. The National Agency for the Management of Emergencies and Humanitarian Catastrophes (ANGUCH) has deployed teams to provide aid to hundreds of affected individuals.

Between September 18 and 23, 2026, the situation in Guinea expanded to include more regions. In Conakry, heavy rains caused major drainage failures and significant traffic congestion in areas like Sonfonia-Lac and Kagbelen. In Kissidougou, torrential rains injured two people and damaged more than 20 homes in the Farakoh and Missira neighborhoods, while floodwaters washed away a bridge in the Songbô area. In Dinguiraye, heavy rains submerged a critical bridge, isolating the sub-prefectures of Lansanaya and Gagnakaly from the urban center. Meteorological services have maintained high alerts for the Basse-Guinée region, warning of ongoing risks of flooding and landslides.

## Timeline

### 2026-09-22: Heavy rainfall causes flooding and infrastructure damage in Guinea

Heavy rainfall in Guinea has caused flooding and infrastructure damage, injuring two people in Kissidougou and isolating the Lansanaya and Gagnakaly sub-prefectures in Dinguiraye due to submerged bridges.

2 sources. https://clstr.news/cluster/heavy-rainfall-causes-flooding-and-infrastructure-damage-in-guinea

### 2026-09-19: Guinea floods cause death and displacement in Coyah and Conakry

Heavy rainfall in Guinea has caused devastating floods in Coyah and the Grand Conakry region, leaving at least one dead, several injured, and hundreds displaced as homes and infrastructure were submerged.

12 sources. https://clstr.news/cluster/flooding-in-guinea-causes-death-and-property-damage

### 2026-09-02: Makeni flooding disrupts roads and businesses in Sierra Leone

Heavy rainfall triggered serious flash flooding in Makeni, Sierra Leone, on September 1, 2026, damaging businesses, disrupting major roads, and highlighting concerns over inadequate drainage systems.

2 sources. https://clstr.news/cluster/makeni-flooding-disrupts-roads-and-businesses-in-sierra-leone

---
Cite as: Flooding in West Africa. CLSTR, https://clstr.news/situations/flooding-in-west-africa