How to Protect Yourself During a Heatwave: Essential Tips to Stay Safe in Extreme Heat
Heatwaves are becoming increasingly common across Europe and many other parts of the world. Rising global temperatures have led to more frequent and prolonged periods of extreme heat, creating serious health risks for millions of people. Knowing how to protect yourself during a heatwave is essential to reduce the chances of dehydration, heat exhaustion, and heatstroke, especially among older adults, young children, pregnant women, and individuals with chronic medical conditions.
Health authorities recommend taking preventive measures before and during periods of extreme heat. Most of these recommendations are simple to follow and can significantly reduce the impact that high temperatures have on your health and daily life.
Keep Your Home as Cool as Possible
Your home can become a safe shelter from extreme temperatures if you prepare it properly. During the hottest hours of the day, usually from late morning until early evening, keep windows, curtains, and blinds closed to prevent direct sunlight from heating indoor spaces.
External shading systems such as awnings, shutters, or blinds can greatly reduce indoor temperatures by blocking solar radiation before it reaches the windows. If you have air conditioning, use it efficiently by maintaining a comfortable temperature without setting it excessively low, which also helps reduce energy consumption.
Once outdoor temperatures begin to fall in the evening, open windows on opposite sides of your home to create cross ventilation. This natural airflow helps remove accumulated heat and cools indoor spaces without relying entirely on mechanical cooling systems.
Stay Hydrated Throughout the Day
One of the greatest dangers during a heatwave is dehydration. The body loses large amounts of water and essential minerals through sweating, making regular fluid intake essential.
Drink water frequently, even if you do not feel thirsty. Waiting until thirst appears may already indicate the early stages of dehydration. People who spend time outdoors or perform physical activities should increase their water intake accordingly.
Fresh fruits with high water content, such as watermelon, melon, oranges, strawberries, and peaches, also contribute to hydration while providing important vitamins and minerals. On the other hand, alcoholic beverages should be avoided because they increase fluid loss and may worsen dehydration.
Choose Light and Nutritious Meals
Nutrition also plays an important role in helping your body cope with extreme temperatures. Heavy meals rich in fats require more energy to digest, generating additional body heat and making you feel even warmer.
Instead, choose lighter meals based on salads, vegetables, fresh fruit, cold soups, lean meats, and fish. Eating smaller portions more frequently throughout the day helps improve digestion while reducing the body’s metabolic workload.
Foods rich in water and electrolytes can also help maintain proper hydration during extended periods of hot weather.
Wear Clothing Designed for Hot Weather
The clothes you wear have a direct effect on your body’s ability to regulate temperature. Loose-fitting garments made from lightweight, breathable fabrics such as cotton or linen allow better air circulation and help sweat evaporate more efficiently.
Light-colored clothing reflects more sunlight than dark fabrics, reducing heat absorption. If you need to spend time outdoors, wear a wide-brimmed hat to protect your face and head from direct sunlight, and use sunglasses with UV protection to shield your eyes from harmful ultraviolet rays.
Applying sunscreen with an appropriate SPF is equally important, as sunburn can reduce the skin’s ability to cool the body effectively.
Avoid Outdoor Activities During Peak Heat
The sun is strongest between approximately 12:00 p.m. and 6:00 p.m., making these hours the most dangerous for prolonged outdoor exposure.
Whenever possible, postpone strenuous physical activities until early morning or after sunset when temperatures are significantly lower. If outdoor work cannot be avoided, take regular breaks in shaded areas, drink water frequently, and wear suitable protective clothing.
Athletes and fitness enthusiasts should also adjust training schedules to minimize exposure to extreme temperatures and reduce the risk of heat-related illnesses.
Take Advantage of Cooling Centers and Green Spaces
Many cities now provide cooling centers or climate shelters during periods of extreme heat. Public libraries, community centers, shopping malls, and other air-conditioned public buildings offer safe environments for people who cannot adequately cool their homes.
Urban parks with dense tree coverage also provide cooler temperatures than paved streets due to natural shade and vegetation. Whenever possible, choose shaded walking routes to reduce direct exposure to sunlight.
Learn to Recognize Heat Exhaustion Symptoms
Recognizing the early warning signs of heat-related illness allows you to act before the condition becomes more serious. Common symptoms of heat exhaustion include:
- Dizziness or lightheadedness.
- Severe fatigue.
- Muscle cramps.
- Heavy sweating.
- Headache.
- Nausea or vomiting.
- Rapid heartbeat.
If these symptoms occur, stop all physical activity immediately, move to a cool or shaded location, drink water slowly, and rest until you begin to feel better. If symptoms worsen or do not improve, seek medical attention promptly.
Heatstroke Is a Medical Emergency
Heatstroke is the most dangerous consequence of prolonged exposure to extreme heat. It occurs when the body’s temperature regulation system fails, causing body temperature to rise above 40°C (104°F).
Warning signs include hot, dry skin or reduced sweating, confusion, difficulty speaking, seizures, unconsciousness, and unusual behavior. Anyone showing these symptoms requires immediate emergency medical assistance.
While waiting for emergency responders, move the person to a cooler location, remove excess clothing, and use cool water, wet towels, or fans to help lower body temperature.
Protect Those Most at Risk
Older adults, infants, young children, pregnant women, people with chronic heart, kidney, or respiratory diseases, and individuals living alone are particularly vulnerable during heatwaves.
Checking regularly on family members, neighbors, and anyone who may need assistance can help identify early signs of heat-related illness before they become life-threatening.
It is equally important never to leave children, elderly individuals, people with disabilities, or pets inside parked vehicles, even for a few minutes. Temperatures inside a parked car can rise rapidly to dangerous levels, creating life-threatening conditions in a very short time.
By staying hydrated, keeping indoor spaces cool, limiting outdoor activities during the hottest hours, eating light meals, and recognizing the symptoms of heat-related illnesses, you can significantly reduce the health risks associated with extreme temperatures. Taking preventive action remains the most effective way to stay safe and healthy during a heatwave.
