Extreme Heat

Extreme heat can be dangerous for everyone, especially outdoor workers, the elderly, some people with disabilities and children, particularly infants.

Keep safe

If feeling dizzy, weak or overheated:

  • go to a cool place.
  • sit or lie down.
  • drink water.
  • wash face with cool water.
  • avoid exercising during the warmest parts of the day.


If these tips do not help, seek medical help immediately. Be sure to check on elderly family members by phone or video call. 


Never leave pets or children in hot cars.


When indoors

  • Stay indoors to limit sun exposure.
  • Close blinds and curtains during the hottest times of the day. You can cover windows with tinfoil-covered cardboard to reflect sunlight.
  • Take frequent cool showers or baths.
  • Stay on lower floors if there is no air conditioning.
  • Drink water and eat light, regular meals. Avoid consuming salt, caffeinated beverages and alcohol.
  • Avoid using large appliances such as stoves, ovens, washers and dryers. Prepare meals that do not require cooking.


When outdoors

  • Spend the hottest part of the day in air-conditioned buildings.
  • Drink water every 15 to 20 minutes, even when not thirsty.
  • Dress in light-coloured, loose-fitting clothing covering as much skin as possible.
  • Wear a wide-brimmed hat to protect the face.
  • Wear full UVA and UVB protection sunglasses.
  • Apply sunscreen with SPF 15 or higher 20 minutes before going outside.
  • Apply lip balm with SPF 15 or higher.


Contact Information

Emergency Planning

Joint Operations Centre
2800 Rutherford Rd.
Vaughan, ON L4K 2N9

Mailing Address

Vaughan City Hall
2141 Major Mackenzie Dr.
Vaughan, ON L6A 1T1