
Outdoor work has been banned during the hottest parts of the day in more than half of Italy's regions, while an extreme heat wave has broken June temperature records in Spain and Portugal.
The high temperatures are believed to have claimed at least three lives, including that of a young boy who is thought to have died of heatstroke while in a car in the Tarragona province of Catalonia on Tuesday afternoon.
In Palermo, Sicily, a 53-year-old woman died on Monday after fainting while walking on a street.
It is said that she was suffering from a heart problem.
A 70-year-old man was reported to have drowned in a tourist resort near Turin as intense heat gave way to storms and flash floods.
Admissions to hospital emergency units in some parts of Italy have increased by 15-20% in recent days.
Most patients are elderly people suffering from dehydration.
The heatwave, which has forced the evacuation of tens of thousands of people from their homes in Turkey due to wildfires, has also forced the closure of schools in parts of France - after education unions warned that classrooms were dangerously hot for children and teachers.
Meanwhile, tourists faced the closure of some of Europe's most popular attractions.
The top of the Eiffel Tower was closed as temperatures in Paris were about to reach 38 degrees Celsius.
In Brussels, the Atomium monument, famous for its giant stainless steel balls, closed early as temperatures dropped towards 37 degrees Celsius.
In Italy, Lombardy and Emilia-Romagna, two industrial hubs, announced they were banning outdoor work between 12:30 p.m. and 4 p.m., joining 11 other regions - stretching from Liguria in the northwest to Calabria and Sicily in the south - that have imposed similar bans in recent days.
Local authorities were following the advice of unions after the death of Brahim Ait El Khayyam, a 47-year-old construction worker, who collapsed and died while working on a construction site near Bologna, the capital of Emilia-Romagna, on Monday.
French national rail operator SNCF said train travel between France and Italy had been suspended for at least several days following violent storms on Monday.
Cogne, a town in Italy's Aosta Valley that suffered major flooding in June last year, has been isolated by a landslide.
Spain's state meteorological agency, Aemet, said in a social media update that June 2025 broke records when it comes to high temperatures, with an average temperature of 23.6 degrees Celsius, 0.8 degrees Celsius above the previous hottest June of 2017.
The monthly average was also 3.5 degrees Celsius higher than the average over the period from 1991 to 2020.
The agency's comments come just days after Spain's highest temperature ever recorded for the month of June of 46 degrees Celsius was recorded in the Andalusian province of Huelva.