France Experiences Historic Heatwave: Temperatures Expected to Reach Up to 43 °C

Paris – 23.06.2026: France is currently in the midst of an extraordinary heatwave that began on June 17, 2026, notable for its intensity, duration, and early start. Météo-France forecasts that from June 23 to June 26, four of the hottest days ever recorded in the country will occur, with temperatures ranging from 38 °C to 43 °C across large parts of the country.

More than 90% of the population is under heat warning, with nighttime temperatures remaining dangerously high, which can affect both physical and mental health. This heatwave is directly linked to climate change, as temperatures are 2 °C to 4 °C higher than would be expected without human influence.

The impacts are already noticeable: schools have had to close, train services have been disrupted, and there has been an increase in healthcare emergencies as well as elevated mortality rates, especially among vulnerable populations. Despite a national adaptation plan from 2025, France appears insufficiently prepared, prompting experts to call for more urgent measures and a faster reduction of greenhouse gas emissions.

Scientists emphasize that heatwaves are becoming more frequent, intense, and longer due to greenhouse gas emissions, primarily from the burning of fossil fuels. Two-thirds of the 52 heatwaves recorded in France have occurred since the beginning of the 21st century.

These extreme temperatures worsen drought conditions and increase the risk of forest fires in many regions. Additionally, flora and fauna are suffering under these conditions. Heatwaves place a significant burden on society, raise mortality—for example, 5,700 people died from heat-related causes in the summer of 2025—and reduce economic activity. Early heatwaves especially burden outdoor workers, farmers, and students who are not yet on summer break.

Despite the introduction of a third national plan for climate change adaptation in 2025, France clearly is not ready to handle these extreme heatwaves. According to the High Climate Council (HCC), the scope of measures within this political framework and the funding are inadequate. Experts point out that although adaptation measures are urgent and necessary, they will not be sufficient to manage heatwaves, and a drastic reduction in greenhouse gas emissions remains essential to limiting global temperature rise.

Given the current situation, it is crucial for the population to take protective measures such as staying well hydrated, staying in air-conditioned spaces, and avoiding physical activity during the hottest times of day. The most vulnerable are elderly people, children, and those with pre-existing conditions. Authorities advise regularly checking on at-risk individuals and seeking medical help immediately at any signs of heat-related damage.

This heatwave underscores the urgent need to seriously address climate change by implementing both short-term adaptation strategies and long-term measures to reduce greenhouse gas emissions in order to prevent future climate crises.