France is experiencing its second heatwave of 2026, breaking records with the hottest June day and night on file [1, 2, 3, 4, 5, 6]. Temperatures peaked between 40 and 44 degrees Celsius across much of the country in mid to late June, with some areas hitting 42 to 44C around June 21-22 [1, 3, 7, 4, 8, 5, 6]. At the height of the heatwave, about 35 to 39 million people—over half the population—were under heatwave orange or red alerts [4, 9, 5, 6].
The heat has claimed multiple lives. At least 20 people drowned after swimming in unsafe, unsupervised areas contrary to warnings; French Sports Minister Marina Ferrari said, "To go swimming in unauthorised areas, during a heatwave, is not something to take lightly." Two young children, ages two and four, died after being left inside a parked car in Carpentras amid extreme heat [1, 6, 10].
Schools enacted safety measures: between 1,350 and nearly 2,700 French schools either closed or adjusted schedules to protect pupils from the heat. Education Minister Edouard Geffray said 784 primary and secondary schools adjusted hours, with 150 closing completely [4, 8, 6].
Paris authorities allowed supervised swimming in segments of the Canal Saint-Martin starting June 17 to provide relief. Mayor Emmanuel Gregoire noted the challenge police faced in preventing young people from swimming unsafely: "Spending an enormous amount of energy, municipal police and national police to stop young people from swimming when it was 40 degrees... struck us as slightly absurd." [2, 3, 11]
Public health measures included alcohol bans at public events in red alert zones to reduce medical strain [9]. The June 21 Fête de la Musique festival occurred nationwide but with restrictions in affected areas [7, 9, 8, 5].
French rail operator SNCF cancelled over 70 trains between June 18-22 to prevent air-conditioning malfunctions amid sweltering conditions [7, 11]. Nuclear power plants, reliant on river water cooling, faced production cuts from June 20-23 due to warming rivers [7].
Politically, the heatwave has sparked debate over expanding use of air-conditioning. France currently has about 25% household AC penetration, but some right-wing and green politicians now voice openness to wider adoption. Ecologist party head Marie Tondelier said, "There are places where we just can't do without it [air-conditioning] now." [12]
Climate scientists note France has recorded 51 heatwaves since 1947 and 34 since 2000, with frequency rising due to climate change [2, 3, 4, 9]. Health Minister Stéphanie Rist said, "We’re heading for, at the very least, several days of very, very hot weather. We don’t know when temperatures will start falling." She added, "Many people are going to suffer, because bodies suffer from an accumulation of high temperatures." [8, 5]
The heatwave remains active with intense conditions continuing into late June. Authorities are maintaining alerts and safety measures as temperatures persist at record highs and related disruptions continue.
