After Years of Resisting AC, France Scrambles for Cooling Amid Deadly Heatwave

A severe and unusually early heatwave has gripped France since June 17, 2026, turning into one of the most intense episodes ever recorded in the country. By June 25, a record 72 of the 96 mainland departments were placed under red alert, the highest figure the weather service has ever issued for any event. Forecasters compare the episode with the August 2003 heatwave, which caused around 15,000 deaths.

The crisis has revived a long-running debate about how prepared the country really is. After 2003 the state promised to invest in heat protection, but policy over the following two decades focused mainly on winter insulation. Critics argue that insulation built to trap warmth can turn poorly ventilated homes into ovens during long hot spells, and that public subsidies pushed up the cost of renovation work while air conditioning, comparatively affordable, was long discouraged in public discourse over energy use and urban heat islands.

The human toll has been heavy. The Paris region health agency activated its emergency 'plan blanc' across all hospitals, and the government raised the ORSAN health plan to its highest level. On June 25, officials reported what they described as the first death of a patient caused by heat exposure inside a non air-conditioned hospital room. Many wards have no cooling and several stayed above 30 degrees Celsius for hours at a time.

The lack of cooling has produced painful standoffs. At the Louis-Mourier hospital in Colombes, near Paris, the family of an 83-year-old patient was refused permission to install a portable air conditioner they had bought, with the room measured at 35 degrees Celsius. Management cited fairness between patients, fire safety and the risk of overloading an aging electrical system. Simple fans are often tolerated, but units with exhaust hoses are routinely turned down.

Public services have been widely disrupted. More than 800 schools closed or cut their hours, forcing many parents to stay home from work. The national rail operator SNCF cancelled about 10 percent of trains serving the Paris region to limit heat damage to tracks. Major events including the Solidays festival and the Paris Pride march were cancelled.

Several recent public buildings have struggled badly, raising questions about wasted spending. The glass mezzanine of the rebuilt Nantes train station, opened in 2020 at a cost of 37.5 million euros and designed to cool itself naturally without air conditioning, reached around 41 degrees Celsius on June 24, far hotter than outside, and the operator again fell back on giant fans and water bottles. In Bordeaux, one of the southwestern cities hit hardest, many residents in protected districts cannot fit external shutters or air conditioning because of urban planning rules, a common constraint across France. International visitors have voiced surprise at how little cooling is available compared with their home countries.

In Paris, the response to the heat exposed how little control the authorities had. During the earlier May heatwave, crowds of residents, mostly young people, had already been jumping into the Canal Saint-Martin despite the ban, and police sent to chase them out failed to stop the practice. Rather than enforce the rule, the city gave way and opened a supervised swimming zone of about 100 meters at the Recollets basin on June 17, first from 16:00 to 20:00 and then extended from 15:00 to 21:00 as temperatures climbed. The measure did little to make the canal safe. The city had already counted around 50 injuries, many caused by people jumping from footbridges that were officially off limits into water too shallow for diving, with waste dumped in the canal adding to the danger. On the evening of June 26, a man in his twenties drowned near the quai de Valmy, outside the supervised area and after closing time. Other swimmers pulled him to the bank and tried to revive him, but he was declared dead about half an hour later. Across the country, the drowning toll reached about 55 by June 26 as people kept seeking relief in rivers and lakes.

Facing the emergency, officials who had long resisted widespread air conditioning began placing large orders at high prices, and sales of fans and cooling units surged until stocks ran out. As of June 27, the heat is starting to ease in western France while still affecting eastern areas, and forecasters expect the wider European episode to drift further east. The full human and economic cost will take months to confirm, but the disruption to health, transport, energy and daily life points to a heavy bill for the French economy.