For many Nigerians, hot weather means sweating through a lecture, struggling to sleep at night, spending more on electricity or trying to get through a busy day without feeling exhausted. But what happens when the heat becomes a serious threat to human life?
A new projection from Climate Impact Lab suggests that Nigeria could record 31,400 additional heat-related deaths between September 2026 and February 2027 as an exceptionally strong El Niño develops. The estimate places Nigeria among the countries expected to face the greatest risk from rising temperatures in the coming months.
The figure is alarming, but it needs context. These are projected additional deaths compared with an average year, not confirmed fatalities or a guarantee that this number of people will die. The researchers say targeted action could help prevent some of the expected losses.
With the threat extending beyond discomfort, understanding Super El Niño, its possible effects and the steps Nigerians can take to protect themselves has become increasingly important.
What Is Super El Niño?
El Niño is a natural climate pattern that develops when surface waters in parts of the tropical Pacific Ocean become unusually warm, influencing atmospheric conditions and weather patterns around the world.
The term Super El Niño is commonly used to describe an exceptionally strong event. According to the World Meteorological Organization (WMO), El Niño was firmly established by September 2026 and was expected to strengthen further, increasing the risk of unusual temperature and rainfall patterns.
The United States National Oceanic and Atmospheric Administration (NOAA) said in its October 8 update that a strong to very strong El Niño was likely to continue through January–March 2027.
However, a strong El Niño does not mean every country will experience the same conditions. Its effects depend on location, season and other climate influences. For Nigeria, the concern is the possibility of dangerous heat, alongside weather changes that could affect communities and livelihoods.
How Long Could Nigerians Be Affected?
Current forecasts point to El Niño persisting into early 2027, but that does not mean Nigeria will experience extreme temperatures every day until then.
Climate Impact Lab’s projections cover the period from September 2026 to February 2027 for Nigeria’s estimated additional heat-related deaths. The researchers also project that 15,400 of those additional deaths could occur between December 2026 and February 2027.
These figures highlight the importance of preparation over the coming months. However, they are estimates based on temperature forecasts and historical relationships between heat and mortality. They should not be interpreted as a precise prediction of what will happen in every Nigerian state.
Local weather conditions can differ significantly, making updated forecasts from the Nigerian Meteorological Agency (NiMet) important for understanding the risks in specific areas.
What Could Super El Niño Mean for Nigerians?
1. Greater risk of heat exhaustion and heatstroke
One of the most immediate concerns is the effect of prolonged heat on the human body. When temperatures are high, the body must work harder to regulate its internal temperature. If it cannot cool itself effectively, dehydration, heat exhaustion and heatstroke can occur.
People who work outdoors, including traders, construction workers, farmers, drivers and street vendors, may face particular challenges because avoiding the heat is not always an option. Children, older adults and people with certain existing health conditions can also be more vulnerable.
Heat-related illness can develop quickly. Treating unusually intense heat as a health risk, rather than simply an inconvenience, could make a significant difference.
2. Possible pressure on farming and food supplies
Changes in temperature and rainfall can affect agricultural production, although the exact effects depend on local conditions. If farmers experience unfavourable weather, some communities could face difficulties with crop production, livestock management or water availability.
Such disruptions could place additional pressure on household budgets if food supplies tighten or prices rise. However, higher food prices are not an inevitable result of El Niño alone; they depend on several factors, including production, transport, storage and market conditions.
3. More difficult working and living conditions
Extreme heat can affect concentration, sleep and the ability to carry out physical tasks. For people who depend on daily earnings, taking time off to escape the heat may also mean losing income.
In homes with poor ventilation, high indoor temperatures can make rest difficult, especially at night. Where electricity supply or access to cooling is limited, keeping living spaces comfortable can be more challenging.
These pressures may not affect everyone equally. People with fewer resources to access cool spaces, reliable water and healthcare may have fewer options for reducing their exposure.
How Can Nigerians Protect Themselves?
Although individuals cannot control El Niño, practical precautions can help reduce the health risks associated with extreme heat.
- Drink water regularly. Do not wait until you feel very thirsty. People who have been advised to restrict fluids for medical reasons should follow their healthcare professional’s guidance.
- Plan outdoor activities carefully. Where possible, avoid strenuous work or exercise during the hottest part of the day. Take regular breaks in shaded or cooler areas.
- Wear lightweight clothing. Loose-fitting clothing can help the body release heat. Use a hat or other protection when spending time outdoors.
- Keep indoor spaces cooler. Shade windows from direct sunlight, reduce unnecessary indoor heat and use ventilation when outdoor conditions allow. If your home becomes dangerously hot, spend time in a cooler location where possible.
- Look out for vulnerable people. Check on older relatives, young children, neighbours who live alone and people with health conditions that may make them more susceptible to heat.
- Follow reliable weather updates. Monitor NiMet advisories and public health guidance rather than relying on unverified claims about how El Niño will affect your community.
These steps may seem simple, but they become particularly important when people face prolonged heat and have limited access to cooling.
Know the Warning Signs of Heatstroke
Recognising heat illness early is just as important as preventing it. Heat exhaustion may cause headaches, dizziness, weakness, nausea, heavy sweating and intense thirst. Anyone experiencing these symptoms should stop strenuous activity and move to a cooler place.
Heatstroke is a medical emergency. Warning signs can include confusion, seizures, collapse or loss of consciousness, sometimes accompanied by a very high body temperature.
If heatstroke is suspected, seek emergency medical help immediately. Move the person away from the heat, loosen unnecessary clothing and cool their body with cool water or wet cloths while waiting for assistance. Do not give drinks to someone who is confused or unconscious.
The World Health Organization advises acting quickly because delays in treating heatstroke can lead to severe complications or death.
Can Nigeria Reduce the Risk?
Protecting people from extreme heat requires more than individual precautions. Public agencies, health facilities, employers and communities can all help by communicating reliable warnings, identifying vulnerable populations and making cooler spaces and drinking water more accessible.
Employers can also reduce exposure by adjusting outdoor work schedules where possible, providing rest breaks and ensuring workers have access to water and shade. Health authorities can help people recognise heat-related illness and understand when urgent care is needed.
The Climate Impact Lab projections are intended to identify where action could save lives. While the estimates carry uncertainty, they offer a reason to prepare before the hottest conditions arrive rather than waiting until health emergencies become widespread.
The Bottom Line
Super El Niño does not mean that disaster is inevitable, and its effects will not be identical across Nigeria. But the projected risk of additional heat-related deaths is a serious reminder that extreme heat deserves attention.
For Nigerians, preparation starts with staying informed, protecting the body from prolonged heat and recognising the symptoms that require urgent medical care. For authorities and communities, it means making sure that people most at risk are not left to face extreme temperatures without support.
The warning is not a reason to panic. It is an opportunity to prepare and prevent avoidable harm.
