Extreme heat during the COVID-19 pandemic

During extreme heat events, public health authorities generally recommend that people cool off by visiting an air-conditioned place, such as a theatre or municipal library. At the moment, however, since many public air-conditioned places are closed due to the pandemic, try to spend a few hours a day in a cooler or air-conditioned area in your home and follow the measures indicated below. These instructions are particularly relevant for people who need to isolate themselves right now.

If you do find a public place with air conditioning, remember that you must practise physical distancing (at least 2 metres from others) and follow the required /typo3conf/l10n/fr/rtehtmlarea/Resources/Private/Language/fr.locallang_accessibilityicons.xlf:external_link_new_window_altTexthealth recommendations.

Groups more at risk for heat-related problems: 

  • People 65 and over (especially those living in places without air conditioning);
  • People playing sports or working outdoors or in environments where the industrial activity produces heat;
  • Infants and young children (0 to 4 years of age);
  • People who live alone and those with reduced autonomy;
  • People with a chronic disease or mental health issue.  

Children 0 to 4

  • Never leave a child alone in a car or poorly ventilated room, even for a few minutes.
  • To learn more about the precautions to take for children (0 to 4 years old), read the following document for /typo3conf/l10n/fr/rtehtmlarea/Resources/Private/Language/fr.locallang_accessibilityicons.xlf:external_link_new_window_altTextparents and caregivers.



This advice is relevant even during the COVID-19 pandemic

How to prevent heat-related problems? 

  • Drink plenty of water, without waiting to be thirsty. Or follow your doctor’s instructions regarding the amount of water you should drink.
  • Spend 2 or 3 hours per day in a cool room in your home, ideally one that is air conditioned.
  • Take at least one cool shower or bath per day, or cool off with a moist towel, even at night.
  • Close the curtains or blinds when the sun is shining and, if possible, air out your home at night when the temperature is cooler.
  • Avoid beverages that are high in caffeine, sugar or alcohol, since they dehydrate the body.
  • Reduce physical effort.
  • Wear lightweight clothing.


To learn more, consult the information leaflet entitled /typo3conf/l10n/fr/rtehtmlarea/Resources/Private/Language/fr.locallang_accessibilityicons.xlf:external_link_new_window_altTextIt’s really hot!” (PDF).

What symptoms can affect adults? 

  • Headaches
  • Muscle cramps
  • Swollen hands, feet and ankles
  • Onset of small red pimples called a “heat rash”
  • Signs of dehydration:
    • Reduced need to urinate
    • Dark urine
    • Dry skin
    • Rapid pulse and breathing

What symptoms can affect children?

  • Dry lips or mouth
  • Headaches
  • Sunken eyes with dark circles
  • Dark urine and reduced urination
  • Vomiting and diarrhea 

If these symptoms develop, call Info-Santé at 811 or speak with a health professional.

Fever, dry, red and hot or pale and cool skin, dizziness, vertigo, confused and illogical speech, odd behaviour or generalized malaise, could indicate a case of heat stroke. This is a medical emergency. Call 911 for immediate assistance.

How can you help those who are more vulnerable?

  • Check in on them regularly.
  • Make sure they are following the prevention tips and offer to get them help, if need be.
  • Make sure they have the chance to spend time in a cool or air-conditioned place.

Where to cool off in Laval?

For more information, visit the /typo3conf/l10n/fr/rtehtmlarea/Resources/Private/Language/fr.locallang_accessibilityicons.xlf:external_link_new_window_altTextVille de Laval website.

Where to find additional and reliable information?