Stay Cool
Wear Appropriate Clothing
Choose lightweight, light-colored, loose-fitting clothing.
Stay Cool Indoors
Stay in an air-conditioned place as much as possible. If your home does not have air conditioning, go to the shopping mall or public library, even a few hours spent in air conditioning can help your body stay cooler when you go back into the heat. Keep in mind: Electric fans may provide comfort, but when the temperature is in the high 90s, they will not prevent heat-related illness. Taking a cool shower or bath or moving to an air-conditioned place is a much better way to cool off. Use your stove and oven less to maintain a cooler temperature in your home. Call your local health department to see if there are any heat-relief shelters in your area.
Schedule Outdoor Activities Carefully
Try to limit your outdoor activity to when it's coolest, like morning and evening hours. Rest often in shady areas so that your body has a chance to recover.
Pace Yourself
Cut down on exercise during the heat. If you're not accustomed to working or exercising in a hot environment, start slowly and pick up the pace gradually. If exertion in the heat makes your heart pound and leaves you gasping for breath, STOP all activity. Get into a cool area or into the shade, and rest, especially if you become lightheaded, confused, weak, or faint.
Wear Sunscreen
Sunburn affects your body's ability to cool down and can make you dehydrated. If you must go outdoors, protect yourself from the sun by wearing a wide-brimmed hat, sunglasses, and by putting on sunscreen of SPF 15 or higher 30 minutes prior to going out. Continue to reapply it according to the package directions. Tip: Look for sunscreens that say "broad spectrum" or "UVA/UVB protection" on their labels, these products work best.
Do Not Leave Children or Pets in Cars
Cars can quickly heat up to dangerous temperatures, even with a window cracked open. While anyone left in a parked car is at risk, children are especially at risk of getting a heat stroke or dying. When traveling with children, remember to do the following: To remind yourself that a child is in the car, keep a stuffed animal in the car seat. When the child is buckled in, place the stuffed animal in the front with the driver. When leaving your car, check to be sure everyone is out of the car. Do not overlook any children who have fallen asleep in the car.
Avoid Hot and Heavy Meals
They add heat to your body!
Swim Safe
Only swim in a safe place and stay away from canals. Canals are not safe places for anyone to play around or swim in, big or small, young or old! Before swimming in rivers, check the river conditions to ensure that it is safe. Rivers run fast and cold in the spring and early summer and are not safe for swimming. Please visit the California Nevada River Forecast Center for up to date flow and temperature information. Never swim alone. When at lakes or reservoirs, follow rules set up by the authorities. Always wear a life vest while boating or on the lake or out on the ocean. Obey all hazard signs, they are there to save lives.