The Lagos State Government has cautioned residents to prepare for heavy rainfall and possible flash floods as the 2026 rainy season approaches.
At a press briefing on Friday, the state Commissioner for Environment and Water Resources, Tokunbo Wahab, outlined the findings of the Nigerian Meteorological Agency’s (NiMet) 2026 Seasonal Climate Prediction, highlighting expected rainfall patterns, temperatures, and other weather conditions for the state.
“The annual briefing is organised by the state government to keep residents informed about important climate information and to prepare them for the possible impacts of the rainy season and other weather events,” Wahab said.
According to the forecast, Lagos is likely to experience an early to normal onset of the rainy season, a normal to late end, and above-normal rainfall in several areas. Temperatures across the state are also expected to be higher than usual between March and May.
“This also implies an early onset of the rainy season, a longer-than-normal length and a delayed end of the rainy season in Lagos,” Wahab explained, noting that above-normal rainfall is expected during the first peak of the season.
The commissioner provided detailed projections for the state’s divisions: Ikeja is expected to record rainfall from March 31 to December 2 with 1,932mm, Badagry from March 28 to December 3 with 2,010mm, Ikorodu from March 31 to December 2 with 1,935mm, Lagos Island from March 30 to December 2 with 1,968mm, and Epe from March 29 to December 3 with 1,984mm. Overall, the state’s average annual rainfall is projected at about 1,965mm.
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Wahab warned of potential flooding in low-lying areas and strong winds at the beginning and end of the rainy season, which could threaten lives, properties, and disrupt commercial activities.
“Because strong winds are expected during the onset and the end of each rainy season, lives and properties may be at risk. Commercial activities disruption, flight delays and resulting revenue loss could arise,” he said.
To mitigate risks, the state has intensified flood control measures, maintained its drainage system, strengthened solid waste management, and is working with the Ogun-Oshun River Basin Development Authority to monitor water releases from the Oyan Dam. Low-lying communities such as Agiliti, Agboyi, Itowolo, and Ajegunle are being closely monitored for potential flooding.
Wahab also highlighted the role of signage and advertisement safety, emergency response teams, and traffic management in reducing the impact of storms. He emphasized the importance of residents adhering to safety measures.
“Residents along flood plains and drainage channels in areas such as Owode, Iwaya, Makoko, Badia, Ijora, Isaalu, Pota and Shibiri should remain vigilant and be prepared to move to higher ground when advised,” he said.
The commissioner urged Lagosians to avoid blocking drains with refuse or construction materials, refrain from building in drainage setbacks, and report drainage blockages to the ministry.
“We will continue to protect our water bodies from indiscriminate discharge of solid waste as well as the erection of illegal structures along the drainage alignment/setback,” Wahab added. “Support the government’s efforts by regularly clearing drains around your homes to ensure free flow of stormwater and prevent waste from entering drainage channels.”
This announcement comes as Lagosians prepare for what meteorologists predict could be a prolonged and intense rainy season.