For many Nigerians, the heat is already more than an inconvenience. It is the uncomfortable afternoon that makes a room feel like an oven, the sleepless night spent searching for a breeze, the market trader who struggles to remain under the sun for hours, and the farmer who watches the sky, hoping the rain will come when it is needed.
But what if the heat becomes more dangerous in the months ahead?
A new climate projection has raised serious concerns about the possible health consequences of a strengthening El Niño pattern, with Nigeria potentially facing thousands of additional heat-related deaths between September 2026 and February 2027.
Researchers at the University of Chicago’s Climate Impact Lab estimate that Nigeria could record an additional 31,400 heat-related deaths during the period if the forecast conditions materialise.
The projection, published in September, places Nigeria among the countries expected to experience some of the highest numbers of additional heat-related deaths.
The figure, however, is not a confirmed death toll. It is a scientific estimate of the potential consequences of extreme heat under projected climate conditions. It does not mean that 31,400 Nigerians will certainly die.
Still, the warning raises an uncomfortable question: How prepared is Nigeria for a period when extreme heat could become a serious threat to public health, livelihoods and the cost of living?
The concern comes as the World Meteorological Organisation (WMO) reported on September 3 that El Niño had become firmly established and was expected to strengthen into a very strong event, with its influence on global weather patterns potentially continuing into early 2027.
Nigeria’s weather agency, the Nigerian Meteorological Agency (NiMet), also confirmed the onset of a strong El Niño event in its August 2026 climate update, warning of possible changes to weather conditions.
While the exact effects will vary across the country, the implications could reach far beyond uncomfortable temperatures.
From the health of outdoor workers to the survival of crops, the availability of water and the cost of food in local markets, the coming months could test how well Nigeria prepares for climate-related risks.
What Exactly Is El Niño?
El Niño is a natural climate pattern that occurs when the surface waters of the central and eastern tropical Pacific Ocean become warmer than normal.
Although this warming happens thousands of kilometres away from Nigeria, it can influence the movement of air and atmospheric circulation around the world. These changes can affect temperatures and rainfall in different regions.
El Niño is part of a broader climate pattern known as the El Niño-Southern Oscillation, or ENSO. Its opposite phase is La Niña, which involves cooler-than-normal sea surface temperatures in the same region of the Pacific Ocean.
According to the WMO, El Niño typically occurs every two to seven years and lasts between nine and 12 months. Its effects are not identical everywhere and can be influenced by other climate conditions.
This distinction is important for Nigeria.
A strong El Niño does not automatically mean that every state will experience drought, flooding or extreme heat. Some locations may face unusually hot conditions, while others could experience changes in rainfall or different weather-related risks.
The real concern is the increased possibility of unusual weather conditions—and whether the country can respond before those conditions begin to affect lives and livelihoods.
Why Nigeria Should Be Paying Attention
The Climate Impact Lab estimates that extreme heat could cause 451,000 additional deaths worldwide between June 2026 and February 2027, compared with a normal year.
Nigeria’s projected figure of 31,400 additional deaths covers September 2026 to February 2027.
The scale of the estimate is alarming, but it should be understood as a warning about potential risk, not a prediction of a fixed number of deaths.
Extreme heat can affect people differently. A healthy adult who spends a short period outdoors may recover quickly, while an older person, a young child or someone with an existing health condition may face a much greater danger.
For millions of Nigerians who work outdoors or live in homes with limited cooling, escaping the heat may not be as simple as staying indoors.
And that is where the warning becomes a matter of everyday survival.
1. Extreme Heat Could Turn Ordinary Work Into A Health Risk
Imagine a roadside mechanic working beneath the afternoon sun. A market woman standing beside her goods for hours. A construction worker carrying materials across a site. A farmer tending to crops under a cloudless sky.
For many of these workers, staying indoors during the hottest hours is not a realistic option. Their income depends on showing up, even when the weather becomes uncomfortable.
But prolonged exposure to high temperatures can cause dehydration, heat exhaustion and heatstroke.
Heatstroke is particularly dangerous. It is a potentially fatal condition that requires urgent medical attention.
The World Health Organisation (WHO) identifies older people, infants, outdoor workers and people with existing health conditions among those most vulnerable to extreme heat.
The danger is not limited to people who work under direct sunlight. High indoor temperatures can also become hazardous, particularly in poorly ventilated homes or buildings without reliable cooling.
In a country where power supply can be unpredictable and access to air conditioning is limited for many households, coping with prolonged heat may become increasingly difficult.
The practical steps are simple, but they matter.
People should drink water regularly, wear light and loose-fitting clothing, seek shaded or cool places where possible, and avoid strenuous activities during the hottest part of the day.
Employers should consider providing drinking water, shaded rest areas and breaks for workers exposed to high temperatures.
Families should also check on older relatives, children and neighbours who may be less able to cope with the heat.
Anyone experiencing severe symptoms such as confusion, convulsions or loss of consciousness during extreme heat needs immediate medical attention.
The lesson is clear: heat should not be dismissed as a minor discomfort when it begins to affect the body’s ability to function safely.
2. Farmers Could Be Left At The Mercy Of Unpredictable Rainfall
For Nigerian farmers, rainfall is more than a weather forecast. It can determine whether a season ends in a good harvest or financial loss.
A prolonged dry spell can leave crops struggling for water. Rain that stops earlier than expected may disrupt planting schedules and reduce yields. Excessive rainfall, meanwhile, can flood farmland, destroy crops and wash away valuable soil.
The challenge is that climate patterns do not affect every part of Nigeria in the same way.
NiMet’s August 2026 seasonal update projected normal to above-normal rainfall across much of the North between August and October, while parts of the South-West and Cross River State were expected to experience normal to below-normal rainfall.
These regional differences are important. A farmer in one part of the country may need to prepare for dry conditions, while another may have to consider the possibility of excessive rainfall.
Farmers are therefore advised to follow updated NiMet forecasts and seek guidance from agricultural extension officers before making decisions about planting, crop selection and irrigation.
Where suitable, early-maturing or drought-tolerant crop varieties may help reduce risks.
Farmers in areas expecting heavy rainfall should also take steps to improve drainage and protect their farmland from possible flooding.
The wider concern is not just what happens on the farm. A difficult farming season can affect food availability, household income and the livelihoods of entire communities.
3. Water Supply And Electricity Could Come Under Pressure
Water is one of the first things people think about when the weather becomes unbearably hot.
People drink more water, bathe more frequently and may use more water to keep their homes and surroundings comfortable.
But if rainfall becomes insufficient over an extended period, communities that depend on rivers, dams and reservoirs could face pressure on their water supplies.
Lower water levels can affect the availability of water for households, irrigation and other essential uses.
Hydropower generation may also face challenges if the amount of water flowing into dams declines.
This does not mean Nigeria is certain to experience nationwide water shortages or electricity disruptions. The actual effects will depend on local rainfall conditions, reservoir levels, infrastructure and other factors.
However, the possibility makes early preparation important.
Water authorities should monitor reservoirs and groundwater levels, identify vulnerable communities and develop contingency plans for possible shortages.
Households can also help by repairing leaking taps, storing water safely and avoiding unnecessary waste.
At the same time, authorities must remain prepared for excessive rainfall and flooding in areas where forecasts indicate those risks.
Preparing for climate-related challenges means planning for more than one possible outcome.
4. Food Prices Could Feel The Impact
For many Nigerian households, the consequences of extreme weather may eventually become visible in the market.
A poor harvest can reduce the quantity of food available for sale. Damaged roads and transport disruptions can make it more difficult and expensive to move produce from farms to consumers.
When supply falls or distribution becomes more expensive, food prices may come under pressure.
This is particularly concerning in a country where many households already spend a significant portion of their income on food.
However, El Niño alone does not guarantee that food prices will rise across Nigeria. Prices are also influenced by harvest levels, storage facilities, transportation costs, market conditions and government policies.
Still, the possibility of weather-related crop losses makes preparation necessary.
Authorities should support farmers in vulnerable areas, improve food storage and distribution systems, and monitor supplies to reduce avoidable losses.
The connection between climate and the cost of living is often overlooked. Yet a weather pattern thousands of kilometres away can, through a chain of effects, influence what a family can afford to put on its table.
What Can Nigerians Do To Stay Safe?
As the climate pattern develops, Nigerians should pay attention to official weather forecasts and take practical steps to reduce their exposure to extreme heat.
The following precautions can help protect individuals and families:
- Drink water regularly: Do not wait until you feel very thirsty before drinking water.
- Avoid prolonged exposure to direct sunlight: Where possible, schedule strenuous outdoor work for cooler hours.
- Wear light clothing: Loose-fitting clothing can help the body stay cooler.
- Keep homes cool: Use curtains or blinds to reduce indoor heat and improve ventilation when conditions allow.
- Look out for vulnerable people: Check on children, older people, outdoor workers and neighbours who may need assistance.
- Seek medical help when necessary: Severe confusion, convulsions or unconsciousness during extreme heat require urgent medical attention.
- Follow official weather updates: Check NiMet forecasts and advisories rather than relying on rumours or unverified social media posts.
These precautions are consistent with WHO guidance on protecting people during hot weather.
But personal precautions alone cannot address the full scale of the risk.
The Bigger Question: Is Nigeria Prepared?
The projection of 31,400 additional heat-related deaths raises questions about the country’s preparedness for extreme weather.
Preparing for El Niño requires coordinated action from federal and state governments, health authorities, agricultural agencies, water managers and emergency response organisations.
NiMet must continue providing timely, location-specific forecasts and ensure that warnings reach rural communities, farmers and people without reliable internet access.
Health authorities should increase public awareness of heat-related illnesses, strengthen emergency response plans and ensure that health facilities are prepared to treat people affected by extreme temperatures.
Agricultural agencies should help farmers understand changing rainfall forecasts and make informed decisions about planting, crop selection, irrigation and drainage.
Water authorities should monitor reservoirs and groundwater levels, identify communities at risk of shortages and prepare contingency plans.
Government agencies should also work with broadcasters, journalists and community leaders to explain weather warnings in simple language and correct misleading information.
Importantly, preparation must address both extreme heat and the possibility of unusual rainfall. Focusing only on drought could leave communities exposed to other weather-related dangers.
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The WMO has stressed that even a very strong El Niño does not produce the same effects everywhere. Outcomes depend on the season, local weather patterns and other climate conditions.
Nigeria’s immediate priority should therefore be to prepare for possible risks rather than assume that the worst will happen.
A Warning, Not A Verdict
The projection of 31,400 additional heat-related deaths is a serious warning, but it is not a confirmed death toll.
The difference matters.
Scientific projections are designed to help governments and communities understand what could happen and take steps to reduce the danger. They are not declarations that a particular outcome is inevitable.
For Nigerians, the coming months may bring uncomfortable temperatures, changes in rainfall and pressure on essential services. The precise effects will vary from one location to another.
But the country does not have to wait for the worst-case scenario before acting.
Timely weather warnings, access to water, public health awareness, support for farmers and stronger emergency planning could all help reduce the risks.
Because when extreme heat threatens a country, the question is not simply how hot the weather may become.
It is whether people have the information, resources and support they need to survive it.