The historic heat wave searing France has shifted its ferocious intensity eastward, shattering long-standing temperature records and pushing the nation’s healthcare system to a tipping point. Météo-France confirmed that for the first time since records began, the mercury officially surpassed the 40°C (104°F) mark in both the Bas-Rhin and Haut-Rhin departments on Friday, a threshold that continues to threaten more regions.
As of Saturday morning, 37 departments remain under the maximum red alert warning, signaling a danger to the entire population. The oppressive heat dome, which forecasters say has now exceeded the intensity of the catastrophic August 2003 event, is refusing to release its grip on the country.
Relentless Heat and Looming Records
While a narrow band of relief is finally reaching the Atlantic and Channel coastlines, the situation is deteriorating elsewhere. “The heat is strengthening in the South-East,” warned Christelle Robert, a forecaster at Météo-France, who does not anticipate the heat wave breaking in those regions until early next week. A more definitive drop is expected Sunday, yet temperatures will remain exceptionally high, hovering between 35°C and 40°C in the Northeast.
This persistent heat places the Territoire de Belfort, the last French department never to have recorded a temperature above 40°C, directly in the line of fire. The city of Belfort already shattered its all-time record on Friday, reaching a blistering 38.3°C, and faces a severe risk of breaching the symbolic 40°C barrier for the first time in its history.
The 37 departments on red alert span a vast area from the Paris basin to the eastern borders and include:
- Aisne, Allier, Ardennes, Aube
- Cher,ôte-d’Or, Doubs
- Eure-et-Loir, Indre, Jura
- Loir-et-Cher, Loire, Loiret
- Marne, Haute-Marne, Meurthe-et-Moselle, Meuse, Moselle
- Nièvre, Nord, Oise, Puy-de-Dôme
- Bas-Rhin, Haut-Rhin, Haute-Saône, Saône-et-Loire
- Paris, Seine-et-Marne, Yvelines, Vosges, Yonne
- Territoire de Belfort, Essonne, Hauts-de-Seine, Seine-Saint-Denis, Val-de-Marne, Val-d’Oise
Hospitals Activate Emergency Protocols
The relentless heat is pushing emergency services to the brink. The Regional Health Agency (ARS) for Île-de-France has triggered its “plan blanc,” a hospital emergency mobilization plan, to manage a surge in heat-related pathologies. The situation is described as highly volatile, with emergency room visits spiking dramatically among the most vulnerable.
According to the ARS, visits for children under 2 years old have jumped by 13% compared to the previous week, while the increase among those over 75 has skyrocketed by 47%. The agency is calling on private nurses and health students for reinforcements. The crisis is mirrored across the country; in Rennes, the Ille-et-Vilaine emergency medical service (Samu) experienced its absolute record for calls on Thursday.
Authorities continue to urge extreme caution, canceling numerous public events to minimize risk as the nation endures an episode whose full health impact is expected to linger long after the thermometer begins its slow descent.
