Heatwave: Safety Tips as Temperatures Rise Above 40°C in Nigeria

As Nigeria experiences an intense early-year heatwave, the Nigerian Meteorological Agency (NiMet) has warned that millions of residents may face extreme heat stress.

With temperatures exceeding 40°C in several parts of the country and humidity levels worsening the discomfort, health experts are advising Nigerians to take precautionary measures to prevent heat-related illnesses.

In an advisory released on Tuesday, March 10, NiMet described the current weather conditions as a serious health concern. States expected to face the most severe heat include Kebbi, Niger, Kwara, Oyo, Kogi, Nasarawa, Anambra, Abia, Ebonyi and Cross River, as well as the Federal Capital Territory.

Other northern states such as Taraba, Adamawa, Plateau, Kaduna, Zamfara and Sokoto have also been placed on high alert.

According to the agency, prolonged exposure to extreme heat could lead to dehydration, fatigue, headaches, thermal discomfort and reduced productivity. Vulnerable groups including pregnant women, children, the elderly and Muslims observing Ramadan are considered particularly at risk.

Residents in affected areas have already begun adjusting their daily routines, with many choosing to remain indoors during peak sunshine hours. The combined effects of heat and humidity raise the heat index, making temperatures feel hotter and placing additional strain on the body’s natural cooling system.

Tips to Stay Safe During the Heatwave

Stay hydrated:
Drink at least two to three litres of water daily, even if you do not feel thirsty, to replace fluids lost through sweating.

Eat water-rich foods:
Consume fruits such as watermelon, oranges, cucumbers and pineapple to help maintain hydration. Limit alcohol and caffeine, which can worsen dehydration.

Avoid peak sunlight hours:
Reduce outdoor activities between 11 a.m. and 4 p.m., when temperatures and sunlight are most intense.

Dress appropriately:
Wear light-coloured, loose-fitting cotton clothing that allows air circulation and reflects sunlight.

Protect yourself outdoors:
Use sunscreen and carry umbrellas, hats or sunglasses when stepping outside.

Keep indoor spaces cool:
Use fans or air conditioners where available. Keep curtains and windows closed during the day to block heat and open them at night to improve ventilation.

Reduce strenuous activities:
Avoid intense exercise or long outdoor walks during the heatwave. Outdoor workers are advised to take regular breaks in shaded areas.

Cool your body regularly:
Take cool showers or baths and place damp cloths on areas such as the neck or wrists to help lower body temperature.

Look out for others:
Do not leave children, elderly individuals or pets inside parked vehicles or poorly ventilated spaces. Regularly check on neighbours or relatives with underlying health conditions.

Use oral rehydration solutions when necessary:
In cases of excessive sweating, particularly among children, oral rehydration solutions may help restore lost electrolytes.

Symptoms of Heat-Related Illness

Heat Exhaustion:
Heavy sweating, pale or clammy skin, dizziness, nausea, weakness and a rapid pulse.

Heat Stroke (Medical Emergency):
Extremely high body temperature above 40°C, confusion, hot and dry skin, breathing difficulties, seizures or loss of consciousness.

When to Seek Medical Help

Health authorities advise seeking immediate medical attention if someone experiences confusion, fainting, seizures, persistent vomiting, chest pain, difficulty breathing, or stops sweating despite feeling extremely hot.

Experts say staying hydrated, seeking shade and reducing prolonged exposure to sunlight remain the most effective ways to stay safe as the country continues to face unusually high temperatures.