Nigeria on Alert as Super El Niño Heatwave Threatens Tens of Thousands of Heat-Related Deaths

Nigeria faces a grave public health alert as a powerful “super El Niño” event drives temperatures to dangerous extremes, with new projections warning of tens of thousands of heat-related deaths.

The Nigerian Meteorological Agency has issued heat stress advisories for northern states where temperatures have soared to between 40 and 45 degrees Celsius, while independent researchers warn the country could record the world’s highest additional heat mortality over the coming months.

The Nigerian Meteorological Agency confirmed the onset of a strong El Niño event in 2026, describing it as one of the strongest ocean-atmosphere phenomena in recent decades.

While the agency noted that the super El Niño’s direct impact on Nigeria’s temperatures during the August to October window might not be uniformly significant, it warned of cascading consequences including heat stress, erratic rainfall, and heightened health risks. In its latest advisory, NiMet stated that “heat index projections indicate critical heat levels across parts of the North, Central, and Southern regions of Nigeria,” listing Niger, Kebbi, Sokoto, Zamfara, Katsina, Kano, Yobe, Jigawa, Bauchi, Gombe, Borno, and Adamawa as areas of concern.

The human cost of the extreme heat is projected to be severe. A report by the University of Chicago’s Climate Impact Lab estimated that Nigeria could record 31,400 additional heat-related deaths between September 2026 and February 2027 compared to a normal year.

The researchers projected that the super El Niño could cause an estimated 451,000 additional heat-related deaths worldwide over the six-month period, with Nigeria accounting for nearly half of the 66,800 deaths projected across four vulnerable African nations.

The report attributed Nigeria’s vulnerability to a combination of projected temperature increases across the Sahel, high poverty levels, unreliable electricity, and limited access to cooling facilities.

Authorities and public figures have begun urging residents to take immediate precautions. Anambra State First Lady Nonye Soludo issued a statement advising citizens to stay hydrated, avoid prolonged sun exposure, and wear light clothing.

“As we head deep into a period of increased heat, I encourage every family to take simple but important precautions to protect their health,” she said, adding that special attention should be paid to the elderly, babies, and those with underlying conditions like hypertension and diabetes.

She also emphasized the need for swift action if severe symptoms appear: “If anyone shows signs of severe heat illness, move them to a cool place, begin cooling their body, and seek emergency medical attention immediately.”

NiMet has advised Nigerians to drink water regularly, limit exposure to direct sunlight during peak hours, and ensure proper ventilation in homes and workplaces.

The agency warned that the combination of extreme heat and fine dust particles currently affecting northern regions could increase the risk of heat exhaustion, heat stroke, and possible meningitis outbreaks.

Health officials also caution that symptoms of heat exhaustion—including heavy sweating, weakness, headache, dizziness, and nausea—require immediate intervention to prevent progression to more dangerous heatstroke.