Extreme heat: vigilance for all / Advice / News / Home


Extreme temperature: vigilance for all

Updated on 16.06.2022

Extreme temperature: vigilance for all

After an already extremely long heatwave in May in France, a new high-temperature event was confirmed by Météo France by the end of this week.
Find the steps you need to take to protect yourself and your loved ones.

As every year, a “heatwaves” scheme is activated in seasonal standby mode from June 1 to September 15 to prevent and reduce health risks associated with extreme heat.

4 alert levels:

Yellow alert level
heat peak : a short period (one or two days) of intense heat.
Orange alert level
Heat wave : the period of intense heat in which the combination of average minimum and maximum temperatures for three days reaches or exceeds departmental thresholds.

Warning level red
extreme heat wave : an extreme heat wave with its duration, intensity, geographic extent, and strong health and societal implications.

Heat wave or heat wave?

Either way, temperatures are high for several days in a row. When the heat is not released at night, we are talking about a heat wave that puts our bodies to the test.

A reminder of good reflexes that you must adopt to protect yourself and take care of the health of the most vulnerable in the face of heat.

The health effects of heat are not limited to extreme events: heat has an immediate effect on the body from the first increases in temperature. In the case of high temperatures, the body is put to the test. Knowing the health risks allows you to protect yourself from the effects of heat.

The dangers of high heat

Exposure to high heat is an attack on the body. Sweating allows the body to maintain its temperature, but when it loses control and rises rapidly, a person can experience heatstroke, which can be fatal. Babies and people who are already vulnerable (elderly or chronically ill) are particularly vulnerable. During a high-temperature event, they run the risk of dehydration, exacerbation of their chronic diseases, and even heatstroke. People in good health (especially athletes and manual workers exposed to heat) are not immune if they do not heed a few basic precautions.

Tips to protect yourself from the heat

  • Drink water several times a day.
  • Continue to eat normally.
  • Wet your body several times a day using an atomizer, a washcloth, or taking a warm shower or bath.
  • Avoid going out during the hottest hours (11:00 – 21:00).
  • If you must go out, wear a hat and light clothing.
  • Aim to be in a cool or air-conditioned place for two to three hours a day.
  • Limit your physical activities and sports.
  • Close blinds, curtains and windows during the day.
  • Ventilate at night.
  • If there are elderly, isolated or chronically ill people around you, talk to or visit them. Take them to a cool place.
  • In case of discomfort or behavioral problems, call a doctor.


cooling system

Heatwave “In charge of a childcare facility”


“Employer” heatwave


Heatwave “sports events”