Lagos warns of possible extreme heat as El Niño strengthens and dry season sets in

The Lagos State Government has warned children, pregnant women, elderly persons and outdoor workers to take precautions against possible extreme heat conditions. In a Friday statement, the Commissioner for Environment and Water Resources, Tokunbo Wahab, linked the conditions to the strengthening El Niño climate pattern and the transition into the dry season, which could bring unusual temperature increases, dry spells, dust and deteriorating air quality, with potential risks to public health.

Why Lagos is especially exposed

Wahab said Lagos, as a densely populated and rapidly urbanising coastal city, could face heightened exposure to extreme heat. The concentration of buildings, roads and other heat-absorbing infrastructure, alongside limited green spaces and poor ventilation in some neighbourhoods, could intensify temperatures in built-up areas.

Who is most vulnerable and what to watch for

The statement identified children, older persons, pregnant women, outdoor workers, street traders, construction workers, waste handlers and people with underlying health conditions as particularly vulnerable. Prolonged exposure to excessive heat could cause dehydration, heat exhaustion and heatstroke, with potentially serious consequences if not treated promptly. Symptoms to watch for include excessive sweating, dizziness, headache, weakness, nausea and muscle cramps; sudden collapse or loss of consciousness should be treated as a medical emergency requiring immediate attention.

What officials advise

Wahab urged residents to drink sufficient water regularly, wear lightweight and breathable clothing, seek shade and well-ventilated spaces, and avoid strenuous outdoor activities during the hottest periods of the day. Schools, markets, workplaces and other public facilities should provide adequate ventilation, drinking water and shaded areas where people can take breaks. He also cautioned against open burning of refuse and urged residents and businesses to protect existing trees, plant more trees, preserve green spaces and ensure proper waste disposal to reduce urban heat. The ministry said it would continue working with institutions including the Nigerian Meteorological Agency, the state Ministry of Health and the Lagos State Emergency Management Agency to strengthen preparedness and response.