How to Stay Cool in Hot Weather

Keeping cool in the heat is a challenge with many aspects to consider. When the body overheats due to hot weather, risks such as dehydration and heat-related conditions like heat stress, heat cramps, heat exhaustion, and even heatstroke can occur. Staying cool also helps improve your mood, as heat tends to increase feelings of stress and frustration. Here are several simple and effective ways to stay cool during hot weather that are nearly cost-free and easy to implement.

Hydrate Your Body. Water is essential for cooling down the body in hot weather. It helps to regulate your body temperature, and you should drink even when you’re not thirsty. You may opt for beverages like vitamin-infused drinks or sports drinks like Powerade or Gatorade, although these are generally unnecessary unless you intend to replenish lost vitamins and electrolytes after physical activity.

• The best way to check your hydration level is by observing the color of your urine. Dark yellow, close to amber, is usually a sign of impending dehydration, meaning your body needs more water.
• Avoid sugary drinks like sodas (even diet ones), as these reduce your body's ability to retain water. Also, steer clear of alcohol, coffee, and other caffeinated beverages, as they are natural diuretics.

Don't wait until you're thirsty to drink water. You need to hydrate well before engaging in any activity. If you wait too long without drinking, you might experience cramps, a sign of heat-related illness. Here are some ways to remind yourself to drink more water regularly:

• Buy a durable, reusable water bottle or a water pouch that you can carry with you everywhere and fill up at any accessible water source.
• Freeze a water bottle before heading out. The bottle will freeze when you leave home, but the heat will start to melt the ice once it's outside. Wrap the bottle in a towel to prevent condensation from wetting the items inside your bag.
• Download a hydration reminder app on your phone. Set reminders, track your daily intake, or even log your most recent drink.

Choose cooling foods. Certain foods can help cool your body when selected wisely. Opt for salads, raw foods, vegetables, and fruits. The saying “cool as a cucumber” holds literal truth, as cucumbers are almost 100% water and provide hydration to cool the body. Avoid eating meat and protein-rich foods during the hot parts of the day, as these increase metabolic heat production and contribute to dehydration.

• It may sound odd, but eating chili peppers can actually cool you down. Spicy peppers make you sweat, which leads to a cooling effect.
• Snacks can also help lower body temperature. Your body works harder to digest larger meals, so smaller meals will keep you cooler.

Prepare meals without using the stove or oven. Choose foods that don't require cooking or heat during preparation. If you must cook, keep the air cool and the temperature low by using the microwave instead of the stove or oven. For example, you can thaw vegetables and reheat canned soup in the microwave instead of cooking them on the stovetop.

• Cold soups are perfect for hot weather. If you’ve never tried them before, the hot weather is a great excuse to do so! Plus, cold soups are often healthy.
• Make fruit ice cream, shaved ice with syrup, frozen fruits, frozen yogurt, and other frozen snacks to cool off your body.

Avoid direct sunlight during the hottest part of the day. This is a basic tip that many people often forget when the summer activities are tempting. It's best to avoid exposure to direct sunlight between 10 AM and 4 PM during the hottest months. If you must be outdoors during this time, minimize your exposure to the sun as much as possible.

• Schedule your outdoor activities for early morning or late evening.
• Some people are particularly vulnerable to heat and should stay cool, including children, the elderly, those who are overweight, redheads, people with certain health conditions, and anyone who may have trouble with heat regulation.

Apply sunscreen! While sunscreen doesn't directly cool you down, it plays a vital role in protecting your skin in hot weather. Sunburn can cause pain and damage, and may lead to fever and signs of dehydration. If neglected, sunburn can even result in heat exhaustion or heat stroke.

• Use sunscreen with at least SPF 15. If you plan to be outdoors for an extended period, SPF 30 is a better choice.
• Reapply sunscreen regularly. It is recommended to reapply every 2 hours, but if you swim often or sweat a lot, reapply more frequently.
• Use about the equivalent of one shot glass of sunscreen to cover your entire body.

Stay in the shade. It's best to spend time in shaded areas whenever possible. Resting under trees gives you double the benefit, as trees release moisture into the air and absorb heat. While shade doesn't directly lower temperatures, staying out of the sun can make you feel up to 7 degrees cooler.

• If there's a breeze, the temperature in the shade can feel like it's dropped by another 3 degrees.

Spray water on your skin. Cool water can help rejuvenate you on a hot day. Not everyone has access to a pool, but there are simpler alternatives, like misting sprays. Taking a cool shower or bath can also help lower your body temperature.

• Fill a spray bottle with pure water and store it in the fridge at home or work. When you feel overheated, spritz your face or body with the cool water to quickly bring down your temperature. Keep refilling the bottle and store it cold.
• Engage in cooling activities. Invite friends to play tag with sprinklers, toss water balloons, or have water gun fights to beat the heat.

Wear lightweight clothes. Loose, light clothing will help keep you cooler. Lighter colors are even better since they reflect heat and sunlight more effectively. Shorts and short-sleeved shirts are great options. Fabrics that breathe and absorb sweat work best. Here are some tips to maximize your cooling options:

• Cotton and linen are breathable and absorb moisture well.
• Thin, see-through fabrics are excellent choices. Remember to apply sunscreen even when wearing thin clothes, as they may not provide enough protection from harmful UV rays.
• Clothes made from synthetic fabrics tend to trap moisture, making them heavier and sticking to your skin, which restricts airflow.
• If you work in a dry environment and wear shorts, it may feel more comfortable. Consider UV exposure when selecting your clothing.

Protect your head. A wide-brimmed hat can cover the top of your head and your ears, providing extra shade and cooling. Choose a hat with a brim wide enough to cover the back of your neck as well.

• A light-colored hat can help you stay cooler.

Wear breathable footwear. Depending on the activity, there are different types of shoes that offer better comfort or suitability for the task. Aside from considering factors like arch support, durability, and comfort, you should also select the most breathable shoes that match the activity you'll be doing.

• Cotton socks are great, but moisture-wicking socks will keep your feet cooler.
• Some running shoes designed for summer have ventilation holes.
• Be cautious if you're going barefoot. Some artificial pavements can become unbearably hot in the heat and could burn your feet.

Prioritize comfort over style. When the weather is hot, consider wearing less jewelry. Metal jewelry can heat up significantly and isn’t ideal for staying cool. Other accessories can add weight to your clothes, making them harder for air to flow through, trapping heat and moisture. If you have long hair, it's a good idea to tie it back so that the breeze can cool your neck.

Use fans. While the effectiveness of fans in extremely hot and humid conditions is debated, some people believe fans work well in environments with temperatures around 36°C and 80% humidity, or in areas with 42°C and 50% humidity. Both handheld and electric fans help cool the air by circulating it continuously. Place a fan in your workspace or resting area to keep the air moving and reduce the sticky humidity of hot weather.

• Try making your own "evaporative cooling setup." This device can lower the temperature significantly, and can range from simple (like placing a bowl of cool water in front of a fan) to more complex designs. Using a few PVC pipes, a bucket, a fan, and some ice, you can create a breeze with a temperature of 4°C. However, remember that this evaporative cooling setup won’t work well in humid air.
• Fans aren't a primary cooling source in extreme heat. They can be effective, but only when temperatures aren't excessively high.

Use air conditioning. If your home doesn't have central air conditioning, you can install a window air conditioner in a room to keep things cool during the summer. For example, you could place the air conditioner in a frequently used room like the living room, kitchen, or bedroom.

• It's best to set the temperature of the air conditioner to a comfortable level to avoid skyrocketing electricity bills.
• If your home doesn't have suitable air conditioning, consider visiting public buildings. Some places you can go to stay cool include:
• The library is a great spot to enjoy a cool atmosphere while expanding your knowledge.
• Supermarkets typically have good air conditioning systems. If it's scorching outside, you can wander around the frozen goods section.

Close curtains and blinds. Sunlight turns into heat, so it's important to block out the sun's rays to keep your home cooler. By closing curtains, lowering blinds, or even covering the windows, you can significantly reduce the heat and maintain a cool room. A well-placed awning can also be effective, as it blocks direct sunlight while still allowing light to pass through the window.

Minimize the impact of sunlight on the roof. Changing the color of the roof can help reduce the temperature inside the house. Lighter-colored roofs tend to cool down the house significantly during the summer months. You can brighten your roof with a special coating or replace the traditional dark roof with a lighter color.

• If you're considering a unique way to handle roof heat, contact a professional roofing service to inquire about your options. You may want to wait until the roof needs replacing to change materials altogether.

Good insulation. Better insulation means cooler temperatures in the summer. With well-insulated walls and roof, it's much easier to maintain a comfortable indoor temperature. The fewer cracks and gaps there are, the better the cooling effect will be.

• Ensure that there is a layer of air between the insulation and the roof.

Plan ahead. Whether you're working outdoors or just enjoying the summer, planning your activities can help minimize unnecessary exposure to the heat. Set specific limits for sun exposure and plan ahead to reduce the impact of the heat before beginning your daily tasks. Stick to the time limit by focusing on priority tasks and saving less important ones for cooler parts of the day.

• When going on a hike, plan your route early in the day, choosing paths with plenty of shade.
• When swimming, be mindful of the time spent in the pool. You might feel cooler in the water, but you could still get sunburned if you swim too long without reapplying sunscreen or taking breaks.
• If you need to drive a lot on hot days, make sure your car's air conditioning is working properly. If the cooling isn't as expected, take the car to a service center; it may be low on refrigerant.

Monitor local weather or stay updated with news. Keeping track of weather forecasts is an important part of your heat strategy. In the U.S., the National Oceanic and Atmospheric Administration issues heat warnings based on the heat index. The heat index tells you how hot it feels outside when the humidity is combined with the actual air temperature. Note that the heat index is calculated in the shade with light wind. If you're in direct sunlight and there's a strong wind, the heat index could increase by up to 9°C.

Take time to acclimate if you're traveling to a different climate. Many travelers make the mistake of maintaining their usual activity levels when they arrive in a warmer region. Acclimatizing to the new climate can take up to 10 days, depending on the temperature difference. Instead of pushing yourself too hard, give yourself time to adapt to the hotter environment, which also means limiting physical activities until you're more comfortable with the heat.

• Once you feel more at ease with the hot weather, gradually resume your usual physical activities until you return to normal levels.

Slow down in hot weather. It's important not to push yourself when it's hot outside. Start slow and proceed gradually, paying attention to your body when the high temperatures begin to take a toll. Rest is a key element when dealing with excessive heat. Don't turn down opportunities to take breaks if you're feeling fatigued from the heat.

• It's best to engage in physically demanding tasks in the morning or late afternoon, when it's cooler.