By Dennis Okechukwu
The Lagos State Government has predicted above-normal rainfall for 2026 and warned residents to prepare for possible flooding across parts of the state.
Speaking at a press conference in Alausa, the Commissioner for Environment and Water Resources, Tokunbo Wahab, said the rainy season is expected to begin as early as the last week of March and may continue until the first week of December.
Wahab explained that Lagos is projected to record between 1,650mm and 3,030mm of rainfall this year, with an average of about 1,965mm across the state’s 20 local government areas.
According to him, the forecast is linked to a weak La Niña and a neutral phase of the El Niño–Southern Oscillation (ENSO), which are expected to influence weather patterns in the coming months. These conditions could result in an early onset of the rainy season, a longer duration, and a delayed end.
He added that temperatures across the state are also likely to remain above normal between March and May.
The commissioner gave projected rainfall timelines for several areas: Ikeja is expected to experience rainfall from March 31 to December 2, with about 1,932mm of rainfall, while Badagry may see rainfall from March 28 to December 3 with around 2,010mm. Ikorodu is projected to record about 1,935mm, Lagos Island about 1,968mm, and Epe approximately 1,984mm during the season.
Wahab warned that heavy rainfall could lead to flash floods in some parts of the state, particularly in low-lying communities. He urged residents in areas such as Agiliti, Agboyi, Itowolo, and Ajegunle to consider moving to higher ground when necessary.
He also said the government is monitoring water levels along the Ogun River and working closely with the Ogun-Oshun River Basin Development Authority to regulate water releases from the Oyan Dam to reduce flood risks.
Wahab noted that the state has expanded its network of weather stations and river gauges to track rainfall and water levels, while maintaining year-round drainage clearing and waste management programmes.
He added that the Lagos State Signage and Advertisement Agency has been placed on high alert to ensure the safety of billboards and telecommunications masts, which could be affected by strong winds during the rainy season.
Residents living along flood-prone areas and drainage channels, including Owode, Iwaya, Makoko, Badia, Ijora, Isaalu, Pota, and Shibiri, were also urged to stay vigilant and be prepared to relocate if flooding occurs.