France sizzles in a week of punishing heat as red alerts spread

PARIS (AP) — France gritted its teeth Monday for a week of record-busting temperatures, sweltering under a grueling heat wave that combines daytime highs above 40 degrees Celsius (104 degrees Fahrenheit) and sleep-robbing sweaty nights.

The national weather service, Meteo France, said that most of the country — the largest in the European Union and second most populated — is entering what is described as a “plateau” of unrelenting heat-wave conditions that isn’t forecast to start easing before Friday at the earliest.

Multiple towns in western and central France, including the major port of Saint-Nazaire on the Atlantic seaboard, with an overnight low of 23.2 C (73.8 F), experienced their hottest night ever Sunday to Monday, Méteo France said.

Paris baked through its hottest night for a month of June, not getting below 24.2 C (75.5 F) — a half-degree hotter than the previous record from 2017. The weather service warned of even hotter nights.

“This will continue through the end of the week, with heat levels never before recorded across more than three-quarters of the country on Wednesday and Thursday.”

The heat wave also worsened air quality in the French capital as it causes the formation of ozone that traps pollution. The air quality monitoring agency in the Paris region said pollutants were likely to exceed the recommended threshold.

In a country without widespread air-conditioning, people, businesses and services tried to adapt as best they could. Hundreds of schools were closed on Monday and many hundreds more were canceling some classes, the education minister said.

Broadcasts on the Paris transport network urged commuters to hydrate. Medical specialists took to the airwaves to warn of the potentially deadly cocktail of drinking alcohol in extreme heat. Authorities cracked down on alcohol consumption in public. Multiple drownings were reported as people sought relief in rivers, despite warnings about currents and other dangers.

Human-caused climate change is tied to increasing extreme weather, and U.N. climate agency projections say the next five years should shatter more heat records.

A growing swath of France, spreading on Monday to more than half its regions, was under a “red alert” for heat, with larger areas forecast to suffer highs busting past 40 C and nights not dropping below 20 C.

In the United Kingdom, the weather office also issued an “extreme heat” warning for much of southern England and parts of Wales from Monday until Thursday. It said temperatures could reach 38 C (100 F). The current record for a June day is 35.6 C (96 F), reached in 1976.

Over the last four years, more than 200,000 people across Europe died from heat-related causes, and most of the fatalities were preventable, the World Health Organization’s Europe office said this month. More above-average temperatures are expected this summer, which can cause heat exhaustion and life-threatening heat stroke.

The burning of gasoline, oil and coal, plus deforestation, wildfires and many kinds of factories, release heat-trapping gasses that cause climate change. Europe is the world’s fastest-warming continent, with temperatures increasing at twice the speed as the global average since the 1980s, according to the European Union’s Copernicus Climate Change Service.

The EU monitoring agency found that, in Europe and globally, 2024 was the hottest year on record and the continent experienced its second-highest number of “heat stress” days. Scientists warn that climate change is exacerbating the frequency and intensity of heat and dryness, especially in southeastern Europe, making the region more vulnerable to health impacts and wildfires

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Associated Press writer Samuel Petrequin in Paris contributed to this report.

Copyright © 2026 The Associated Press. All rights reserved. This material may not be published, broadcast, written or redistributed.

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