Europe's Summer of Heat Isn't Over Yet — Here's What's Happening
Météo-France, the national weather service of France, reported on August 7, 2026 that temperatures were rising again across the southern half of the country, with strong heat persisting in the southeast. The advisory signals the return of extreme heat that has defined an extraordinary summer across Western Europe. Météo-France
July 2026 was the hottest month ever recorded in France and one of the driest, according to Météo-France. France went through two separate heat waves during the month. A heat wave is a period of unusually hot weather that lasts several days. The first ran from July 4 to 19 and was classified as the 53rd heat wave in France since records began in 1947. The second began July 28, making it the 54th. At the worst point, on July 12, Météo-France placed 37 French departments (local government areas) under red heat vigilance, the highest alert level, and 46 under orange, the second-highest. Météo-France
In the UK, the Met Office recorded three official heatwaves by mid-July 2026. Its outlook published July 21 suggested that heat could return to the UK later in August. A further Met Office statement indicated that heatwave conditions were likely to return to many parts of the UK the following week as temperatures climbed through the weekend. UK Met Office
The June 2026 heat event set the stage for the summer's severity. The Met Office issued a Red Extreme Heat Warning for midweek, with Amber warnings during a period of extreme heat that saw temperatures widely reach the mid-30s Celsius from Monday. By late June, Reuters reported that Europe was bracing for a prolonged heatwave with temperatures approaching 40 degrees Celsius, prompting nationwide heat warnings, transport disruptions, and signs of strain on wildlife and tourism. A heat dome, a zone of high pressure that traps hot air underneath it like a lid on a pot, had shattered temperature records in Western Europe before spreading eastward over much of Eastern Europe. UK Met Office Reuters
The humanitarian toll was immediate. The June heatwave claimed dozens of lives, disrupted power supplies, shut schools and cultural landmarks, and left thousands sweltering amid power cuts in France. Reuters
Spain's national weather service, AEMET, offers a forward-looking view. Its seasonal prediction indicated a very high probability that average temperatures from August through October 2026 would fall in the warmest third of the historical range across all of Spain. The two most recent Augusts on record were already the warmest in Spain's history. In August 2025, Spain experienced an intense and long heat wave between August 3 and 18, with temperatures reaching up to 6 degrees Celsius above normal. AEMET AEMET
A brief respite came in late June for the UK. The Met Office reported that temperatures had returned to average for the coming week, bringing largely settled conditions before another potential heatwave early the following week. UK Met Office
The broader picture is one heat event after another across a single season, with national weather services in France, the UK, and Spain each documenting events that go beyond what history would predict. France alone has recorded two heat waves in July 2026, pushing the national count to 54 since records began in 1947. The combination of Météo-France's August 7 advisory, the Met Office's outlook for renewed UK heat later in August, and AEMET's forecast for above-normal temperatures through October all suggests that the Western European heat regime that began in June is not fading but starting up again.
What sets the current pattern apart from a single heat dome is how long it has lasted: three UK heatwaves by mid-July, four French heat waves since spring if the June episode is included, and a Spanish forecast that extends the warm temperatures through autumn. The practical consequences are already documented. Power cuts in France during the June event left thousands without cooling at peak demand. School closures and cultural-site shutdowns were reported across multiple countries. Transport networks were disrupted. These are not predictions but outcomes that have already happened.
Whether the returning heat reaches the same extremes as the July 4–19 event, when 37 departments were under red vigilance, will depend on weather patterns that national services are monitoring in near real time. Météo-France's August 7 advisory specifically pointed to the southern half of France and the southeast as zones of strong, persistent heat, which aligns with what climatologists would expect from late-summer Mediterranean influence on the region.
For meteorologists, energy planners, and public health authorities across Western Europe, the signal from all three services is consistent: the 2026 heat season is entering its next active phase, with France's southern corridor currently most affected and the UK likely to follow later in August.
