A crippling early-summer heatwave is sweeping across Western and Southern Europe, bringing record-shattering temperatures, triggering public health emergencies, and leaving dozens dead across multiple nations, with France bearing the brunt of the deadly crisis so far.
French Prime Minister Sébastien Lecornu confirmed that 40 heat-related deaths have been recorded across the country since last Thursday, a large share of which are drowning fatalities linked to desperate attempts to cool off in unpatrolled waterways. As Paris recently reopened the popular Canal Saint-Martin for public bathing, government officials have issued urgent warnings about the catastrophic risks of swimming in unsupervised areas, a threat amplified by extreme heat.
“It’s not something to be taken lightly, going swimming in unsupervised areas during a heatwave,” French Sports and Youth Minister Marina Ferrari told national radio, noting that far too many people underestimate the dangers of unregulated swimming spots while overheated. The fatal toll includes a 13-year-old non-swimmer who died while swimming with her family in the River Seine over the weekend, a young professional footballer left in critical condition after being rescued from a banned section of the Rhône near Lyon, and six swimming-related deaths across Germany between Friday and Sunday, where the German Lifesaving Association (DLRG) reported many victims overestimated their swimming ability in cold, fast-moving water. Two young children, aged two and four, also died of heat exposure after being left in a parked car in the southern French city of Carpentras on Monday.
The unprecedented heat has broken long-standing national temperature records in France: the country recorded its hottest June day on record this past Monday, followed by its warmest overnight low ever recorded, with an average minimum temperature of 21.6°C across the country, according to national weather service Météo France. More than half of France remains under the highest-level red heat alert, as temperatures continue to stress critical national infrastructure. On Monday night, the Golfech nuclear power plant in southwestern France was forced to fully shut down after water temperatures in the cooling River Garonne rose to the legal maximum limit of 28°C, which French regulation prohibits cooling water from exceeding.
France is not alone in facing the crisis. Neighboring Spain and Italy, alongside Germany, are also grappling with extreme conditions that experts confirm are part of a long-term trend driven by climate change. Spain is currently in its third consecutive day of national extreme heat, with red heat alerts active across southern Andalusia and northern regions of Cantabria and the Basque Country. Temperatures are forecast to peak above 40°C in multiple areas, with Aemet, Spain’s national weather service, projecting highs could reach 44°C in rural areas near Córdoba on Tuesday. On Monday, 101 of Aemet’s 828 monitoring stations hit 40°C or higher, with a high of 45°C recorded in Andújar.
Spanish climate experts confirm that early-summer heatwaves are becoming far more frequent, a trend aligned with broader climate change patterns. “There is evidence that heatwaves are now taking place more frequently at the start of summer than in previous decades,” Aemet climatologist Rubén del Campo told Spanish media. Data from the service underscores this shift: between 2000 and 2025, 10 June heatwaves were recorded on mainland Spain, compared to just two in the 25 years before 2000. Researchers note Spain is more exposed to accelerating climate impacts than nearly any other European country.
In Italy, authorities have issued red heat alerts for 15 major cities, including Rome, Milan, Florence, Turin and Venice. The highest-level alert warns that extreme heat poses health risks even to healthy adults, not just vulnerable groups such as the elderly and people with chronic illness. In response to the crisis, the Italian government has reactivated emergency labor protections that ban outdoor farm and construction work during the hottest hours of the day. The policy also allows businesses that pause operations due to dangerous heat to access state-backed furlough payments for affected workers.
In Germany, temperatures are expected to climb as high as 40°C in western and southwestern regions by the end of the week, adding to the six swimming deaths already recorded over the weekend. Officials across the continent are continuing to urge residents to take extreme precautions, avoid unregulated swimming, and check on vulnerable neighbors as the heatwave continues to peak across the region.