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The human cost of persistent rainfall as flood ravages Lagos – EnviroNews
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The rainfall that swept across Lagos on Sunday, June 29, 2026, left behind more than flooded roads and submerged vehicles. It disrupted livelihoods, displaced residents, damaged property, and stranded commuters.
From Gbagada to Chevron, Agungi, Ajiran, Egbeda, Ikola, Shomolu, Oshodi, Surulere, Itire, Lawson, Ikorodu and several other communities, streets became rivers as hours of relentless rainfall overwhelmed drainage systems. Major roads, including sections of the expressway, were submerged, forcing motorists to abandon vehicles while others resorted to using boats and makeshift canoes to navigate flooded neighbourhoods.
Social media was bombarded with videos showing homes and businesses under water, vehicles swept away by flood currents, churches holding services while floodwater flowed through their buildings, and residents wading through waist-deep water in desperate attempts to reach safety. For many Lagosians, it was one of the most devastating flooding incidents in recent years.
A city brought to a standstill
The flooding paralysed movement across several parts of the state.
The bridge linking Ojota and Maryland overflowed, leaving commuters stranded for hours. In Shogunle, Oshodi axis, residents lament as the collapse of a section of the Nigerian Air Force base fence, weakened by floodwaters, fell on vehicles causing huge damage.
Kiosks were washed off the roads, canals overflowed into adjoining streets, and floodwater entered homes in neighbourhoods previously considered safe from flooding.
The incident has renewed concerns that flooding is no longer confined to the traditionally vulnerable coastal areas of Lagos Island. Communities on the mainland that rarely experienced severe flooding are now increasingly affected.
For residents, what was once regarded as an occasional environmental challenge has become an annual reality that appears to worsen each rainy season.
“I’ve never seen anything like this”
For Bimpe Adeoti, a resident of Gbagada, Sunday’s experience shattered the belief that her neighbourhood was relatively protected from flooding.
“That Sunday was so crazy. I couldn’t make it to church. Everywhere I turned was flooded, so I had to go back home. When I got to my apartment, the flood started coming in too. I’ve never experienced this kind of thing before in Gbagada, never.
“Even today while going to work, I had to manage because I don’t have any options. I have to work. It’s still flooding because the rain has not really stopped.”
Her experience mirrors that of many residents who say neighbourhoods once considered relatively flood-safe are now increasingly vulnerable.
The hidden economic cost
Beyond damaged roads and submerged houses lies another consequence that receives far less attention: the economic losses suffered by individuals and businesses.
Vehicles were submerged across different parts of the city while countless traders lost goods after floodwater entered shops and kiosks. Businesses were forced to suspend operations as employees and customers struggled to move around.
The tragedy also claimed lives.
In one reported incident, a scavenger drowned after attempting to retrieve an approaching water tank while standing on what appeared to be solid ground but was actually a thick layer of compacted floating debris.
Across the city, floodwaters carried refuse, plastics and other waste materials into residential areas, raising concerns about possible disease outbreaks once the water recedes.
Climate change meets poor urban planning
Environmental Resource Management expert Gbenga Oloniniran believes the flooding is a reflection of the growing impacts of climate change, compounded by inadequate urban planning and weak flood-control infrastructure.
“As global temperature rises every year, so does water level, largely as a result of melting ice caps,” he said.
“For a city like Lagos which is surrounded by the Atlantic Ocean, the impact of sea level rise is felt even with a slight rainfall. Water immediately begins to flow fast.
“But the greater challenge is the lack of flood control mechanisms. Unregulated urbanisation also worsens the Lagos situation. The rich keep building edifices on flood plains. The Eko Atlantic is an example of where water has been chased by people, and water will always find a route for itself. The route can now be in your homes or offices. That is why people in some Lagos communities now experience flooding they never used to see before.”
He also identified poor waste management as a major contributor.
“The latest flood has carried refuse not removed from Lagos roads into drainage channels and people’s homes, creating another looming environmental and public health disaster.
“Since climate change is here, Lagos needs to build resilience systems, including pumping technologies in low-lying areas, flood walls, and temporary evacuation centres for residents affected by flooding.”
His assessment echoes the concerns repeatedly raised by residents, who continue to point to blocked drainage channels, indiscriminate waste disposal and inadequate drainage infrastructure as factors worsening the situation.
Official response
Responding to the flooding, the Lagos State Commissioner for the Environment and Water Resources, Tokunbo Wahab, described the incident as a flash flood caused by several hours of intense rainfall.
According to him, water levels had receded in many affected areas shortly after the rainfall, adding that the government would continue monitoring vulnerable locations and implementing measures aimed at protecting lives and improving the state’s flood resilience.
The commissioner also stated that some individuals were attempting to exploit the incident to advance particular agendas.
However, the remark drew criticism from some residents and social media users who argued that the immediate concern should be addressing the suffering of victims and strengthening flood mitigation efforts.
LASEMA and NEMA had warned before the rains
Weeks before the heavy rainfall, both the Lagos State Emergency Management Agency (LASEMA) and the National Emergency Management Agency (NEMA) had intensified flood preparedness campaigns across the state, warning residents that the 2026 rainy season could bring severe flooding if preventive measures were ignored.
Speaking during a flood preparedness sensitisation programme in May, LASEMA Permanent Secretary, Dr. Olufemi Oke-Osanyintolu, said Lagos was shifting “from a reactive to a responsive approach” to disaster management.
“Lagos is a coastal megacity with over 22 million residents and extensive waterways. While this drives economic growth, it also exposes us to recurrent flooding. Our focus for 2026 is prevention, early warning and community-level preparedness. Response alone is no longer sufficient,” he said.
The agency disclosed that emergency equipment and relief materials had been pre-positioned in high-risk locations while rescue, marine and heavy-duty units were placed on standby under a joint operational framework with NEMA. Residents were also urged to clear drainage channels, avoid indiscriminate refuse disposal and heed evacuation warnings whenever issued.
Similarly, NEMA’s South-West Coordinator, Akinyode Saheed, said the agency was working closely with Lagos State by providing technical expertise, early warning information and relief support where necessary.
“NEMA is committed to supporting Lagos State with technical expertise, early warning data and relief resources where needed. Preparedness is a shared responsibility,” he said.
Earlier in June, Mohammed Olatunde, Head of Operations at NEMA’s Lagos Territorial Office, warned that forecasts from the Nigerian Meteorological Agency (NiMet) and the Nigeria Hydrological Services Agency (NIHSA) showed that several parts of Lagos faced elevated flood risks during the peak of the rainy season. He identified indiscriminate waste disposal, blocked drainage channels and construction on floodplains as major factors increasing the city’s vulnerability to flash floods.
Warnings persist
The flooding came as the Nigerian Meteorological Agency (NiMet) warned of continued heavy rainfall and possible flash flooding across Lagos and other coastal states.
The agency’s weather outlook for Tuesday, June 30, forecast thunderstorms and moderate to heavy rainfall across several parts of Lagos, while advising residents, particularly those in flood-prone communities, to avoid indiscriminate waste disposal that could clog drainage channels and worsen flooding.
Lessons beyond Lagos
Lagos is not alone.
Similar scenes have been reported in parts of Ghana following heavy rainfall. Viral videos from the Toyota Roundabout area showed floodwaters washing goods from a warehouse into nearby streets, where residents gathered to retrieve provisions, gas cylinders, toiletries, electrical appliances and other items.
While some celebrated what they considered unexpected fortune, the incident also highlighted another dimension of climate disasters: the devastating financial losses suffered by businesses whose investments can be wiped away within hours.
In another viral video, residents are seen taking refuge on rooftops after flood swept their homes in ghana.
Building resilience
As rainfall becomes more intense under changing climatic conditions, experts argue that emergency responses alone will no longer be sufficient.
Residents are calling for sustained investment in drainage infrastructure, stricter enforcement against illegal construction on flood plains, improved waste management systems, routine clearing of canals, and modern flood-control technologies capable of protecting vulnerable communities.
For many Lagosians, the question is no longer whether flooding will occur, but whether enough is being done before the next heavy rainfall arrives.
The floodwaters of June 29 have begun to recede, but for thousands of residents counting their losses, the damage remains. The human cost of persistent rainfall extends beyond submerged roads and stranded commuters, it is measured in disrupted livelihoods, destroyed properties, lost lives and a growing uncertainty over what each rainy season may bring.
By Omowumi Abraham