Extreme Heat

Too much heat and humidity can lead to dehydration, heat exhaustion, other serious illnesses and even death. Early symptoms of heat-related illness can include: headache, dizziness or fainting, rapid breathing or heart rate or otherwise feeling unwell. Get out of the heat and try to cool down. Seek medical care if needed. Older adults, people with chronic health conditions, on certain medications, or living alone are at greatest risk for a heat-related illness.

What to do when there is extreme heat?

Stay hydrated

Drink plenty of water (that’s the best liquid) before you feel thirsty.
Avoid alcoholic beverages, as they can increase the amount of water lost by the body.

Stay cool and keep out of the sun

Plan outdoor activities for cooler parts of the day.
If you are outdoors during the hottest part of the day, shade yourself from the sun with an umbrella or a wide-brimmed hat with lots of ventilation (to allow the sweat on your head to evaporate), wear loose-fitting, breathable, light coloured clothing, and remember to wear sunscreen to limit ultra-violet (UV) ray exposure.
Block the sun out by closing awnings, curtains or blinds during the day at your residence or workplace.
If there is no air-conditioning at home – go to a cool place such as an air-conditioned location such as a shopping centre, restaurant, public library, or community centre.
Take a cool bath or shower or go for a swim to cool off.
Avoid using your oven or other appliances that could heat your home more.
Limit physical activities during the hotter parts of the day or exercise in an air conditioned place.

Take care of yourself and others

Check on family members, neighbors and friends—especially older adults and those with chronic conditions. Visiting is best because it is easier to identify signs of heat illness that could be missed over the phone.
Never leave people or pets in your care alone in closed vehicles or direct sunlight.

Signs of Heat Exhaustion or Heat Stroke

If unwell, get out of the heat and get help.