An above-normal rainfall pattern is expected in Lagos State in 2025, with an estimated annual precipitation of 1,952mm, according to projections from the Nigerian Meteorological Agency (NiMET).
The forecast signals prolonged rainy periods and potential disruptions across multiple sectors, raising concerns over flood management and infrastructure resilience.
The Commissioner for the Environment and Water Resources, Mr. Tokunbo Wahab, disclosed this during a media briefing on the 2025 Seasonal Climate Prediction and Socio-Economic Implications for Lagos State, held in Ikeja on Wednesday.
Wahab explained that the El Niño Southern Oscillation (ENSO) is expected to remain in a neutral phase for the first six to eight months of the year.
This condition could trigger an early onset and delayed cessation of rainfall, intensifying weather-related challenges such as strong winds, flash floods, and disruptions to transportation, commerce, and revenue generation.
“The rainy season is expected to begin in late March and end in early December. Ikeja, for instance, will receive rainfall from April 2 to December 2, accumulating a total of 1,900mm.
Other areas, including Badagry, Ikorodu, Lagos Island, and Epe, will experience similar patterns with slight variations in rainfall amounts,” Wahab stated.
He noted that runoff from neighboring states—Ogun, Oyo, and Osun—along with controlled dam releases, will be closely monitored to mitigate flood risks.
Residents in flood-prone communities such as Agiliti, Agboyi, Itowolo, and Ajegunle have been advised to consider relocating to higher ground to avert potential loss of lives and property.
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“As seen in many coastal cities worldwide, flash floods during heavy rainfall are inevitable but usually drain within hours unless exacerbated by high lagoon levels or blocked drainage systems.
“We urge residents not to panic but to take necessary precautions,” Wahab added.
▪️To curb the anticipated flooding, Wahab outlined several proactive measures, including:
▪️Strengthening the Flood Early Warning Systems (FEWS)
▪️Expanding the network of weather and river gauge stations
▪️Collaborating with the Ogun-Oshun River Basin Development Authority (OORBDA) for systematic water releases from the Oyan Dam
▪️Year-round maintenance of drainage systems for effective flood control
▪️Enforcement of solid waste management to prevent blockages
Coordination with the Lagos State Signage and Advertisement Agency (LASAA) to regulate billboard and mast safety amid expected high winds; the Lagos State Government urged residents to support its flood prevention initiatives by avoiding indiscriminate waste disposal.
Residents are also cautioned to refrain from obstructing drainage channels, and reporting blockages to relevant authorities.
“We appeal to communities along flood-prone areas such as Owode, Iwaya, Makoko, Badia, and Ijora to remain vigilant. If extreme conditions arise, the government will issue relocation advisories where necessary,” Wahab affirmed.
Reiterating its commitment to disaster preparedness, the government called for collective efforts in ensuring a safer, flood-resilient Lagos during the 2025 rainy season.
