2022 heat wave: which departments are on orange alert?

FRANCE HEAT 2022. The 3rd episode of heat wave in France continues with rising temperatures in the middle of the week. 16 departments are placed in orange vigilance. What are the effects of heat waves on the body? Which departments are on orange alert? Heatwave maps of France and info.

[Updated August 10 2022 at 12:03 p.m.] France suffers a new heatwave episode in August, the third of the season after those of June and July. ' The temperatures rise again this week, initially on the southern half of the territory, then on the western side and the north in the middle of the week. The nighttime temperatures will remain high ' indicate Meteo France in its latest heat wave bulletin. 16 departments go into orange vigilance heat wave and 21 departments are on yellow alert. ' The heat increases further. Maximum temperatures will rise another 1-2°C. They will reach 34 to 37°C from the Pays-de-Loire to Poitou-Charentes, and 36 to 38°C generally in the South-West with local peaks at 39 or 40°C. Temperatures should begin to drop from the west Sunday August 14 at the approach of a rain-storm degradation “adds Météo France. We recense 45 heat waves in France since 1947, indicate Meteo France . Over the last 35 years, they have been 3 times more numerous than over the previous 35 years. The number of days of heat waves has been multiplied by 9 . 'The frequency and intensity of heat waves are set to increase in the coming decades. The frequency of events is expected to double by 2050 .' The 'Heat wave plan' remains activated by the French government throughout the summer of 2022. The hotline toll-free number info service can be reached at 0800 06 66 66 9 a.m. to 7 p.m. (free). Extreme heat, day and night, for several days, puts the body to the test. The children and the elderly people are very vulnerable hot weather and special attention should be paid to them. here are the government instructions and recommendations in the event of a heat wave to avoid heat stroke, dehydration ...

  Heatwave vigilance map by department
Heatwave vigilance map by department August 10, 2022

August 2022 heatwave in France

France is experiencing a third heat wave in August 2022 : the heat wave has settled in France July 31 with the implementation of heat wave orange vigilance in 5 departments in 3 regions of the South East (Auvergne Rhône-Alpes, Occitanie and Provence-Alpes-Côte-d'Azur), i.e. 4% of the French resident population affected by at least one orange vigilance day. On August 2, the heat wave spreads and Météo France adds 22 departments on orange alert in the Auvergne Rhône-Alpes, Bourgogne-Franche-Comté, Grand Est, Nouvelle Aquitaine, Occitanie and Provence-Alpes-Côte-d'Azur regions. The peak of this heat wave passed on Wednesday, August 3. ' The temperatures rise again this week, initially on the southern half of the territory, then on the western side and the north in the middle of the week. The nighttime temperatures will remain high ' indicate Meteo France in its latest heat wave bulletin. 16 departments are on orange alert as of August 10 : Charente (16), Charente-Maritime (17), Dordogne (24), Haute-Garonne (31), Gers (32), Gironde (33), Landes (40), Loire-Atlantique (44), Lot (46) ), Lot-et-Garonne (47), Pyrénées-Atlantiques (64), Hautes-Pyrénées (65), Deux-Sèvres (79), Tarn (81), Tarn-et-Garonne (82) and Vendée (85) . 21 departments on yellow alert.

Duration and record of heat waves in June and July 2022

► A first heat wave took place in June 2022 : the peak occurred on Saturday June 18 with records in the west and south-west ( 43°C in Biarritz ). Sunday June 19, the heat decreased in the west but strengthened between the center-east and Alsace (38°C in Strasbourg). ► One second heat wave settled in France on July 12 2022 and ended on July 25, with extreme peaks on July 18 and 19. The national bulletin of Public health France of July 27, 2022 indicates that this wave concerned most of the territory, 96% of the population experienced at least one day of orange vigilance and 16.5% on a day of red vigilance . ' This episode has taken hold for several departments in the South East, with more than 7 days of alert 'This episode is characterized by exceptional maximum temperatures and broken records on the country's Atlantic coast, leading to red alertness. But, with the exception of the Southeast, this episode remained short-lived (less than 4 days) in the majority of departments. For the period of vigilance, 4 deaths possibly linked to heat have been notified to Public Health France by the labor inspection system. These 4 deaths occurred during an orange or red heatwave alert.

  Duration of orange (or red) vigilance between 07/12/2022 and 07/25/2022. Sources: GeoFLA, Meteo France
Duration of orange (or red) vigilance between 07/12/2022 and 07/25/2022
  Record heat wave July 2022
Record heat wave July 2022

What are the instructions for the departments in red vigilance?

In addition to the anti-heat recommendations (drink water, eat enough, get your body wet, avoid going out, etc.), on red alert:

► Do not expose yourself to the sun at all.

► Stop all physical and sporting activity

The heatwave info service toll-free number can be reached on 0800 06 66 66 from 9 a.m. to 7 p.m. for any question (free call from a landline in France).

If you feel unwell, dial 15

  heat wave instructions
Heat wave instructions

Recommendations: what to do in the event of a heat wave?

In the event of a heat wave, the government recommends:

  • Drink water and stay cool
  • Avoid alcohol
  • Eat enough
  • Close shutters and windows during the day, ventilate at night.
  • Wet the body (warm but not cold shower)
  • Give and take news of loved ones.
  Red Cross recommendations in case of hot weather
Red Cross recommendations in case of hot weather

What is the toll-free number in the event of a heat wave?

The hotline toll-free number info service can be reached at 0800 06 66 66 9 a.m. to 7 p.m. (free).

What is the definition of heat wave?

Word 'heat wave' comes from the Latin 'canicula' which means 'little female dog'. Canicula is the name given to the star Sirius (which comes from the Greek 'seirius', meaning 'burning', 'fiery'). which is found in the constellation Canis Major. Star that rises and sets with the sun from July 22 to August 22, a characteristic period of high heat . The heat wave is associated with very high temperatures both day and night for an extended period of time, usually of at least 3 consecutive days .

What does yellow, orange and red vigilance mean in the event of a heat wave?

Departmental weather forecasts are analyzed every day during the summer by Météo-France. The results of this analysis allow Météo-France to establish the weather vigilance map which is broadcast every day at 4 p.m.

► The yellow vigilance level corresponds to two situations:

  • heat rush: short-term exposure (1 or 2 days) to intense heat
  • a persistent episode of heat but which remains below the alert thresholds

These two situations present a risk for human health, for fragile or overexposed populations, in particular because of their working conditions or their physical activity.

► The orange vigilance level corresponds to a heat wave: period of intense heat for which the averages over 3 consecutive days of night and day temperatures reach or exceed departmental thresholds, and which is likely to constitute a health risk, particularly for fragile or overexposed people.

► The level of red vigilance corresponds to an extreme heat wave : exceptional heat wave in terms of its duration, its intensity, its geographical extension, with a strong health impact for all types of population, and which can lead to the appearance of collateral effects, particularly in terms of business continuity.

What are the dangers of heat waves on health?

Prolonged exposure to heat is a major stress for the body, reminds the Ministry of Health . The human body tries to adapt to it . The sweat more and the blood vessels dilate . If it is unable to maintain its temperature around 37°C when it is very hot or if body fluids or salts are not adequately replaced, several problems can arise:

  • heat cramps,
  • insolation,
  • heat exhaustion,
  • heatstroke.

Extreme heat can also aggravate pre-existing illnesses, being responsible for heat-related illnesses. Taking certain medications can make heat-related effects worse, especially in people at risk.

Cramps, nausea, inexplicable tiredness, severe headache, incoherent talk or high fever: Call 15

Heat stroke and heat wave

Heat stroke or 'hypothermia' corresponds to overheating of the body: it can no longer cope with the increase in internal temperature linked to high temperatures. It mostly affects athletes, but also the elderly, outdoor workers, and young children during peak heat. This also applies to adults who stay too long in confined and poorly ventilated rooms. For example, staying for hours in a car or on an RER in the heat is a big risk. Cramps, headaches, hot, flushed skin ... The first warning signs that must grow to call 15 .

Dehydration and heat wave

Puffs of sweat when drinking a glass of water, absence of urine for 5 hours or dark urine, dry lips... Beware of dehydration, which is particularly common in the event of a heat wave. Concretely: a person who sweats and does not drink enough becomes dehydrated. His body lacks water and becomes dehydrated. The elderly are most at risk.


For the elderly, patients with chronic diseases (kidney, heart, liver, respiratory failure, diabetes, cancers...), patients taking certain medications (diuretics, neuroleptics, antidepressants): hyponatremia ( decrease in the concentration of salt in the blood ) is a risk increased in hot weather. For those at risk: do not exceed an intake of 1.5 liters of water in addition to foods rich in water, eat a balanced diet, avoid going outside during the hottest hours and see your doctor if you are following a low-salt diet.

Why should we avoid drinking alcohol when it's hot?

Consuming alcoholic beverages in hot weather potentially worsens the effects of alcohol and heat on the body.

  • An alcoholic drink does not allow you to quench your thirst . On the contrary, alcohol increases the risk of dehydration in raison de son action diuretique.
  • The alcohol does lose more fluid to the body, making the body more susceptible to heat stroke.

The best : The prevention of risks related to the interaction between alcohol and high heat requires controlled consumption, the ideal being to drink as little alcohol as possible, if at all. The limit is set at two standard drinks per day for women and three standard drinks per day for men. In case of occasional consumption, it is better not to exceed four standard glasses at once and do not hesitate to drink water between each glass. People with chronic illnesses and pregnant women are advised not to drink alcohol.

From what temperature do we speak of a heat wave?

The heat wave is associated with very high temperatures both day and night for an extended period of time, usually of at least 3 consecutive days . Meteorologically, it is exceptional nature of high night temperatures which marks the duration of a heatwave episode. Temperature and duration thresholds are defined and vary according to the departments, explains Meteo France .
For instance : In Toulouse, Météo-France speaks of a heat wave when for 3 days and 3 nights it does not fall below 21°C minimum and it exceeds 36°C maximum during the day.

Who are the vulnerable people during the heat wave?

Those most at risk in a heat wave are: people over the age of 65 (when one is old , the body sweats little and has difficulty maintaining itself at 37°C). and infants and children under 4 years of age ( the body sweats a lot to keep it at the right temperature, the child loses water and risks dehydration) . Next come: people with strong physical activity, those working in the heat (bakery, laundry, construction...) and the homeless.

Heat wave map

Each year, the heat wave plan is activated in France on June 1 and until September 15. Its objective is to anticipate the arrival of a heat wave, to define the actions to be implemented at the local and national levels to prevent and limit the health effects and to best adapt the prevention and management measures at the territorial level. paying particular attention to specific populations

The different levels of activation of the heat wave plan are articulated with the 4 meteorological vigilance colors of Météo France:

  1. Level 1 - seasonal monitoring (green vigilance)
  2. Level 2 - heat warning (yellow alert)
  3. Level 3 - heatwave alert (orange alert)
  4. Level 4 - maximum mobilization (red vigilance)

What are the dates of heat waves in France?

Since 2015, the heat waves have increase in frequency and intensity in France with an occurrence earlier (in June) or later (late August-early September) during the summer period. Among the main heat waves in June in France , those of june 1947 , 1976 , 2003 , 2005, 2006 . There was no heat wave in France during the summer of 2021.

► July 2022: a heatwave episode hit France between 12 and 20 July.

► June 2022: the heat wave episode began on June 15, 2022 and affected 71 departments. 70% of the metropolitan population experienced at least one day of orange heat wave vigilance. 14 departments were also placed on red heat wave alert for at least one day, i.e. 12.5% ​​of the population. This episode was unprecedented in its precocity and intensity. Several temperature records for the month of June and also in absolute terms were recorded.

► 2019 between June 24 and July 7 and July 21 and 27. According to bulletin published by Santé Publique France in september, 1435 deaths were observed during this heat wave. Those most affected are those over 75, but age groups 15-44 and 65-74 were also impacted.

► J June 2005 and 2006 with temperatures often between 35 and 40°C , in particular in the south-east and in the Rhône valley (more than 30°C every day in Lyon in 2006).

► A August 2003. Its intensity, duration and geographic scope had been exceptional. She had caused 15,000 additional deaths compared to the usual mortality for this period of the year in France.

Other memorable heat waves: that of July 1983 'longest observed' remember Meteo France , and those of the summer of 1947 and 1976 .

  heatwave france heat wave

When does the heat wave occur in France?

The heat wave occurs at different times depending on the country. In France, the period of high temperatures that can lead to a heat wave can start from end of June and continue until August 15 .

Deaths, temperature: how was the heat wave in 2003?

The August 2003 heat wave was exceptional couple said duration ( two weeks ) between August 1 and August 15, its intensity and geographic extent. The summer of 2003 was the hottest on record since 1950, recalls Meteo France . The temperatures rose from 24 to 37 degrees the first 5 days of August then capped at 36-37 degrees until August 13 . The temperature record was recorded at the stations of Saint-Christol-les-Alès and Conqueyrac in the Gard, with 44.1°C. In mainland France, 47,000 deaths from all causes were recorded during the 2003 heat wave, compared with an average of 31,700 over the same period during the years 1999-2002, i.e. a death excess of 15,300 , reports the Insee . The excess mortality affected the whole of France, even in the departments where the number of heat waves was low.

  • An information number is available in the event of an episode of high heat Canicule-info-service: 0 800 06 66 66 (free call from a landline), daily from 9 a.m. to 7 p.m.
  • 15: the number to call in case of illness or emergency.
  • 18 (Firefighters),
  • 112 (single European emergency number).
Source journaldesfemmes.fr