Lagos residents should prepare for persistent rain over the next eight to 10 days, with weather forecasts indicating a high probability of showers and thunderstorms across the state. The likelihood of rainfall remains above 50% on most days, with Monday recording a 97% chance. Daily temperatures are expected to stay between 28°C and 30°C.
Why Lagos Floods So Easily
Lagos is a low-lying coastal city surrounded by the Atlantic Ocean, lagoons, and wetlands. This geography makes it naturally vulnerable to flooding during heavy rainfall. The city receives up to 2,000 millimetres of rain annually, making flooding almost inevitable in some locations during the rainy season.
Experts explain that Lagos often experiences compound flooding, which occurs when heavy rainfall coincides with high tides or rising sea levels. Instead of stormwater flowing into the ocean, high tides push water back into drainage systems, causing temporary flooding on roads and in communities.
Human Activities Worsen Flooding
While nature plays a major role, human behaviour often determines the severity of flooding. Poor waste disposal is a significant problem: plastic bottles, nylon bags, and other refuse dumped into gutters and canals block drainage channels, preventing rainwater from flowing properly. As a result, even moderate rainfall can quickly lead to flooded roads.
Construction on drainage paths and floodplains also reduces the city's ability to drain excess rainfall. Experts point to weak compliance with building regulations and the pressure of rapid urbanisation as contributing factors. Regional studies have noted that flooding across West African cities, including Lagos, has worsened due to population growth, poor waste management, and ageing infrastructure.
High-Risk Flood Zones
A 2026 flood susceptibility assessment found that more than 12% of Lagos' land area falls within high-risk flood zones. This highlights the exposure of many parts of the state to flooding, which is both a climate and urban planning challenge.
Reducing flooding is not solely the government's responsibility. Residents also have a role to play by keeping drainage channels free from refuse and following environmental regulations. With several rainy days still expected, Lagosians are advised to keep umbrellas, raincoats, and waterproof shoes handy.
