No Light, Rising Heat: El Niño Warning Puts 31,400 Nigerians at Risk

As temperatures rise and electricity supply remains unreliable in parts of the country, a new climate projection warns that Nigeria could record 31,400 additional heat-related deaths by February 2027. The figure is not a confirmed death toll, but it raises urgent questions about public health, electricity, household preparedness and government response.

For many Nigerians, the heat of recent weeks has become difficult to ignore. Nights are increasingly uncomfortable, warm air lingers indoors, and getting a good night’s sleep has become a challenge in some communities.

The situation becomes even more difficult when electricity is unavailable. Imagine enduring another 24 hours without power while temperatures remain high, with no fan, no air conditioner and little relief from the heat. In some communities, residents have reported prolonged outages, leaving households and small businesses struggling to cope.

Even when electricity returns, running an air conditioner for several hours can be expensive. For households relying on prepaid meters, staying cool can quickly become another financial burden.

I have felt this personally in my own work environment. The heat has been intense over the past two weeks. I have been drinking more water than usual, and even my laptop fan seems to be working overtime. Normally, switching on the air conditioner would be the obvious response, but the cost of electricity makes that decision less straightforward. I have had to rely more on ventilation and other ways of managing the heat.

Nigerians are familiar with hot weather. We live in a tropical climate, and many people have become accustomed to high temperatures. But familiarity should not make us underestimate prolonged extreme heat, particularly when access to reliable electricity, affordable cooling and adequate healthcare remains a challenge.

Now, a major climate warning has added another reason for concern.

Researchers at the University of Chicago’s Climate Impact Lab project that Nigeria could experience 31,400 additional heat-related deaths between September 2026 and February 2027 as the current El Niño event intensifies.

The figure is a projection, not a confirmed death toll or a prediction that these deaths will certainly occur. However, with the World Meteorological Organization warning that El Niño could strengthen further and persist into early 2027, the risk deserves serious attention.

The question is no longer simply whether Nigerians can endure another hot season. It is whether households, health facilities and governments are adequately prepared for the risks ahead.

What Is El Niño, and Why Should Nigerians Be Concerned?

El Niño is a natural climate pattern that develops when surface waters in the central and eastern tropical Pacific Ocean become unusually warm. This warming affects atmospheric circulation, changing rainfall and temperature patterns in different parts of the world.

Its effects vary by region. Some countries may experience heavier rainfall, while others face reduced rainfall, longer dry spells or unusually high temperatures.

The World Meteorological Organization says the current El Niño is firmly established and strengthening. Its October 21, 2026 global seasonal update indicates that the event could intensify towards very strong conditions between November 2026 and January 2027, with Pacific Ocean temperature anomalies potentially peaking around December.

The WMO also expects El Niño conditions to persist through February 2027. This makes the coming months particularly important for countries that may experience increased heat stress and other weather-related risks. WMO, October 2026.

Nigeria’s weather agency, the Nigerian Meteorological Agency (NiMet), has also been monitoring the developing climate conditions. Its seasonal outlooks and advisories are important for understanding how the changing pattern may affect rainfall, dry spells and agricultural activities across the country.

It is important to understand that El Niño does not produce identical weather conditions everywhere. Nor does every unusually hot day in Nigeria automatically result from El Niño. Local weather patterns, humidity, urban development, reduced vegetation and the wider effects of climate change can all influence how hot a particular location becomes.

Nevertheless, the strengthening El Niño event adds to the reasons Nigeria should prepare for potentially dangerous heat conditions.

You may also read;

• France Protests Escalate: 550,000 Demonstrators, Burning City Hall and Macron Under Pressure
• World Polio Day: Nigeria’s Unsung Heroes Deserve More Than Applause
• Nigeria Is Not Yet Ebola-Free: What WHO Has Clarified and What Happens Next
• How to Prepare for Black Friday 2026: The Complete Smart Shopper Checklist

31,400 Additional Deaths: Where Does the Figure Come From?

The projection comes from the Climate Impact Lab at the University of Chicago.

In a report published on September 22, 2026, titled 451,000 at Risk: Where Action Can Save Lives During the Super El Niño, researchers examined seasonal temperature forecasts and the relationship between extreme heat and mortality across more than 24,000 regions worldwide.

Their findings estimate that the developing El Niño could contribute to approximately 451,000 additional heat-related deaths globally between June 2026 and February 2027, compared with the expected number under normal conditions.

Nigeria ranks first among individual countries in the study, with an estimated 31,400 additional heat-related deaths between September 2026 and February 2027.

Other figures from the report include:

• Nigeria, Sudan, Niger and Chad could record a combined 66,800 additional deaths across the Sahel region.
• Nigeria alone accounts for nearly half of that projected Sahel figure.
• An estimated 15,400 additional deaths in Nigeria could occur between December 2026 and February 2027.
• Indonesia is projected to record approximately 19,300 additional deaths.
• The Philippines, Vietnam, Thailand and Cambodia could experience a combined 19,400 additional deaths.

The figures are alarming, particularly because Nigeria has a large population and significant differences in access to healthcare, reliable electricity, clean water and cooling facilities.

However, the projection should be understood within its proper context.

What the 31,400 Figure Does and Does Not Mean

The 31,400 figure does not mean that 31,400 Nigerians have already died from heat. It is not a confirmed death toll, and it does not mean that all the projected deaths will necessarily happen.

It represents the estimated increase in heat-related deaths compared with the average for the same months between 1996 and 2025, based on the researchers’ temperature forecasts and mortality modelling.

The final outcome will depend on how weather conditions develop, how communities respond, and whether effective measures are put in place to reduce exposure to extreme heat.

This distinction matters. Presenting the projection as an inevitable disaster could create unnecessary panic. Dismissing it because it is not a confirmed death toll would be equally irresponsible.

The report is a warning that gives governments, health authorities and households an opportunity to prepare.

Its title makes the central point clear: action can save lives.

Nigerians Are Already Feeling the Heat

For many residents, the current heat is not an abstract climate discussion. It is something they experience at home, at work, in markets, on public transport and while carrying out everyday activities.

Recent temperature readings cited in Nigerian reporting include 41°C in Nguru, Yobe State, and 34°C in Lagos. These readings illustrate the high temperatures recorded in different parts of the country, although conditions vary by location and time of day.

NiMet has also issued heat-related advisories, warning about the health risks associated with high temperatures. In October, the agency cautioned that Nigerians could experience increased heat discomfort as the country moves further into the dry season. Premium Times, October 23, 2026.

The National Emergency Management Agency (NEMA) has also urged Nigerians to prepare for the potential effects of El Niño, including hotter conditions and possible disruptions to rainfall, agriculture and food supply. Channels Television, October 27, 2026.

The concern is that the current heat may be part of a longer period of uncomfortable and potentially dangerous conditions. One expert quoted in recent coverage expects heat stress to become particularly severe between March and May 2027, which is traditionally one of Nigeria’s hottest periods.

That possibility makes early preparation essential.

No Light, No Cooling: Nigeria’s Electricity Problem Makes the Heat Worse

One issue deserves much more attention in the discussion about extreme heat in Nigeria: electricity.

When temperatures rise, people naturally depend on fans, air conditioners and other cooling equipment. But what happens when electricity is unavailable for long periods?

For many Nigerian households, this is not a hypothetical question. Some communities have experienced prolonged power interruptions, while electricity distribution companies have cited supply constraints and technical issues in parts of the country.

In October, reports documented reduced electricity supply affecting parts of Lagos and Abuja. Other reports from Anambra also described significant reductions in allocated electricity supply. These disruptions are not proof of a nationwide 24-hour blackout, but they demonstrate how power supply problems can affect people’s ability to cope with hot conditions. Nairametrics, October 19, 2026.

The problem goes beyond inconvenience.

A family with young children may struggle to keep a room comfortable overnight. An elderly person living alone may have no alternative cooling arrangement. A trader working in a poorly ventilated shop may spend hours in an environment that becomes increasingly hot.

Small businesses also face difficulties. Workers in offices, workshops, restaurants, warehouses and shops may have to continue working without adequate ventilation or cooling.

For households that have electricity, the cost of running an air conditioner for extended periods presents another challenge. Some people deliberately avoid using their air conditioners because of the amount of electricity they consume.

This creates an uncomfortable choice between personal comfort, health and household expenses.

The situation also raises a broader question: how prepared are Nigeria’s electricity and public health systems for a period of increased heat stress?

As temperatures rise, demand for cooling may increase. If electricity supply remains unreliable, households and businesses could face greater pressure.

This is why the heat discussion should not be limited to telling Nigerians to drink more water. Access to electricity, affordable cooling, reliable water supply and functional healthcare facilities must form part of the national response.

Who Is Most at Risk?

Extreme heat can cause dehydration, heat exhaustion and heatstroke. In severe cases, heatstroke can be fatal.

Although anyone can be affected, some groups face greater risks.

Children and infants

Young children can become dehydrated quickly, and their bodies may not regulate temperature as effectively as adults. Parents and caregivers should pay close attention to signs of unusual tiredness, irritability, reduced urination and other changes in behaviour.

Older people

Older adults may have underlying health conditions or take medication that affects their ability to cope with heat. Those living alone may also struggle to recognise when they need assistance.

Outdoor workers

Farmers, market traders, construction workers, security personnel, delivery riders, street vendors and transport workers often spend long hours outdoors. Their exposure to direct sunlight and high temperatures can increase the risk of heat illness.

People with chronic health conditions

People living with heart disease, kidney disease, diabetes and certain other conditions may face additional complications during periods of extreme heat. They should follow medical advice and seek help when they experience unusual symptoms.

People without reliable cooling

Households without dependable electricity, fans or air conditioning may find it difficult to escape prolonged heat, particularly at night. Poor ventilation and overcrowded living conditions can make the situation worse.

How El Niño Could Affect Farming, Food Prices and Electricity

The consequences of El Niño may extend beyond health.

Changes in rainfall patterns can affect farmers who depend on seasonal rainfall to plan planting, irrigation and harvesting activities.

NiMet’s August 2026 seasonal update provided rainfall expectations for different parts of Nigeria. Such forecasts are important because El Niño does not affect every state in the same way. Farmers need location-specific information rather than assumptions based on national headlines.

If rainfall becomes irregular or dry spells become longer in certain areas, agricultural production could be affected. This may create additional pressure on food supply and prices, particularly for households already dealing with high living costs.

Livestock farmers may also face challenges where water availability and pasture conditions deteriorate.

Electricity demand is another concern. Higher temperatures can increase the use of fans, air conditioners, refrigeration and cooling systems. This may place additional pressure on an electricity system that already struggles with supply constraints.

For businesses that depend on refrigeration, food storage and temperature-controlled environments, prolonged power interruptions can create financial losses and operational difficulties.

Government agencies should therefore monitor the combined effects of heat, water availability, electricity demand and agricultural conditions rather than treating each issue separately.

What Nigerians Can Do to Protect Themselves

While individuals cannot control El Niño or the national electricity supply, practical steps can reduce exposure to extreme heat.

Drink water regularly. Do not wait until you feel very thirsty before drinking. People who work outdoors or engage in physical activity may need more fluids. Anyone with a medical condition requiring fluid restriction should follow their healthcare provider’s advice.

Reduce strenuous activity during peak heat. Where possible, schedule outdoor work and exercise for early morning or later in the evening. Take regular breaks in shaded or cooler areas.

Improve ventilation. Open windows where it is safe to do so, particularly when outdoor temperatures fall. Use cross-ventilation to encourage airflow through the house.

Block direct sunlight. Close curtains or blinds during the hottest part of the day, especially where sunlight enters through large windows.

Wear light clothing. Loose-fitting, lightweight and breathable clothing can help the body manage heat.

Check on vulnerable relatives and neighbours. Older people, infants and those living with chronic illnesses may need additional assistance. A phone call or visit can help identify someone who is struggling.

Recognise the warning signs. Heavy sweating, dizziness, headache, nausea, weakness and muscle cramps may indicate heat exhaustion. Confusion, fainting, seizures or very high body temperature can indicate heatstroke. Heatstroke is a medical emergency. Move the person to a cooler place, begin cooling them with water or cool wet cloths, and seek emergency medical attention immediately. Do not give fluids to someone who is confused or unconscious.

Never leave children or pets inside parked vehicles. Temperatures inside a closed vehicle can rise rapidly, even when the weather outside does not seem exceptionally hot.

Follow credible weather updates. Check NiMet’s forecasts and advisories rather than relying on unverified social media posts or dramatic WhatsApp messages.

Staying Cool When Electricity Is Unreliable or Expensive

For many Nigerians, the challenge is finding ways to stay cool without depending entirely on an air conditioner.

Some practical measures include:

• Use a fan when electricity is available, positioning it to move air across your body.
• Open windows at night when outdoor conditions are cooler and it is safe to do so.
• Use curtains, blinds or external shading to reduce direct sunlight entering rooms.
• Take a cool shower or use a cool, damp cloth on the neck and body for relief.
• Avoid cooking during the hottest part of the day where possible.
• Reduce the use of appliances that generate additional indoor heat.
• Keep drinking water available, especially for children and older relatives.
• Consider rechargeable fans or solar-powered fans where affordable and suitable.

For people working with laptops and other electronic equipment, keep devices on hard, flat surfaces, avoid blocking ventilation openings and allow equipment to cool when possible. High ambient temperatures can make it harder for electronic devices to dissipate heat.

However, these measures have limitations. A rechargeable fan or open window may provide some relief, but it cannot replace adequate cooling for someone at serious risk of heat illness.

Families should pay particular attention to infants, elderly relatives and people with chronic medical conditions.

What Should Government and Emergency Agencies Do?

Public advice is important, but the responsibility for reducing heat-related deaths cannot rest entirely on individuals.

Nigeria needs a more coordinated response that connects weather forecasting, public health, electricity supply, water access and emergency management.

1. Issue regular and understandable heat alerts.

NiMet should continue providing timely, location-specific heat and weather advisories. The information should reach people through radio, television, mobile networks, social media and community organisations.

Alerts should explain what the forecast means in practical terms, including when outdoor exposure may become dangerous and which groups need extra protection.

2. Prepare hospitals and primary healthcare centres.

Health facilities should be prepared to identify and manage heat-related illnesses. Healthcare workers need clear guidance on recognising dehydration, heat exhaustion and heatstroke, particularly in children and older adults.

3. Establish community cooling and support points.

Local governments should identify public buildings, community centres and other suitable facilities that can provide temporary relief during periods of dangerous heat. These facilities should have reliable electricity, drinking water, ventilation and access to basic medical assistance.

4. Improve electricity reliability and emergency planning.

Electricity distribution companies and relevant government agencies should communicate planned interruptions and major supply disruptions clearly. Emergency planning should consider the increased health risks associated with prolonged outages during periods of extreme heat.

5. Protect outdoor workers.

Employers, construction companies, market authorities and government contractors should introduce practical heat-safety measures. These should include drinking water, shaded rest areas, suitable work schedules and breaks during the hottest periods.

6. Support farmers with reliable climate information.

Agricultural extension services should help farmers interpret NiMet’s local forecasts and make informed decisions about planting, irrigation and livestock management.

7. Make public communication consistent.

NEMA, NiMet, the Federal Ministry of Health, state governments and local authorities should coordinate their messages. Nigerians need clear, consistent information rather than conflicting warnings or sensational headlines.

These measures require planning, funding and cooperation. Waiting until heat-related illnesses become widespread will make the response more difficult and expensive.

Is Harmattan Coming? Does That Mean the Heat Will End?

Many Nigerians associate the transition into the dry season with the arrival of Harmattan, which usually brings dry, dusty air and cooler mornings and nights in many parts of the country.

Harmattan typically begins to affect northern Nigeria before spreading further south. Its timing and intensity vary from year to year.

However, the arrival of Harmattan should not be mistaken for the end of heat-related risks.

Afternoons can remain very hot, particularly in northern states. Dry air can also increase dehydration risks because sweat evaporates more quickly, sometimes making people less aware of how much fluid they are losing.

Harmattan brings its own health concerns. Dust can irritate the eyes and respiratory system, worsen breathing difficulties and cause dry skin and cracked lips. People should pay attention to weather advisories and seek medical care when they experience serious symptoms.

The Climate Impact Lab’s projection extends through February 2027. The wider concern about heat stress may also continue beyond that period, depending on local weather conditions.

The arrival of cooler mornings should therefore not become a reason to abandon sensible heat precautions.

A Message to Nigerians in the Diaspora

For Nigerians living abroad, the current warning is also a reminder to check on family members at home.

Many older parents and relatives depend on family support for basic needs. A prolonged power outage during a period of intense heat can be particularly difficult for someone living alone or managing a health condition.

If you have family in Nigeria, call and ask how they are coping. Find out whether they have access to drinking water, a working fan, reliable electricity and a comfortable place to sleep.

Where possible, targeted support could include a rechargeable or solar-powered fan, a water storage container, assistance with electricity costs or help arranging a medical check-up for an elderly relative.

The important thing is to understand what the person actually needs rather than assuming that every household faces the same problem.

The Heat Warning Needs a National Response

The projection of 31,400 additional heat-related deaths in Nigeria is serious, but it should not be treated as an inevitable outcome.

The University of Chicago’s Climate Impact Lab has provided a warning based on climate forecasts and mortality research. The WMO expects the current El Niño to strengthen further and continue into early 2027. NiMet and NEMA have also issued information and advisories that Nigerians should take seriously.

But the country’s ability to manage the coming months will depend on more than weather forecasts.

It will depend on whether families understand the risks, whether vulnerable people receive support, whether hospitals are prepared and whether public authorities take practical steps to protect communities.

Nigeria’s electricity challenge makes this particularly urgent. People cannot be expected to manage prolonged extreme heat through personal discipline alone when they have no reliable power, limited access to cooling and rising household expenses.

The government must treat extreme heat as a public health and infrastructure concern. Reliable electricity, access to clean water, heat alerts, prepared healthcare facilities and community support should form part of the response.

For individuals, the message is straightforward: drink water regularly, reduce unnecessary exposure to peak heat, check on vulnerable people and follow official advisories.

For government, the responsibility is greater: prepare communities before conditions become more dangerous.

Nigerians have learned to live with hot weather. But this is not the time to assume that we can simply endure whatever comes.

The heat is already being felt. The warning has been issued. Preparation must begin now.