Published: 2019-06-29 11:00:42 BdST
The mercury hit 45.9 degrees Celsius (114.6 Fahrenheit) in Gallargues-le-Montueux, in the southern Provence region, weather forecaster Meteo France said, nearly two degrees above the previous high of 44.1 Celsius recorded in August 2003.
Twelve towns in southern France saw new all-time highs on Friday and three experienced temperatures above 45 degrees, it said.
The World Meteorological Organisation said 2019 was on track to be among the world's hottest years, and that 2015-2019 would then be the hottest five-year period on record.
It said the European heatwave was "absolutely consistent" with extremes linked to the impact of greenhouse gas emissions.
Four administrative departments in France were placed on red alert, signalling temperatures of "dangerous intensity" that are more typical of Saudi Arabia.
The unusually high temperatures are forecast to last until early next week.
People cool off in a fountain in Nice as a heatwave hits much of the country, France, Jun 27, 2019. REUTERS
In the central region, a fire broke out on the outskirts of Toledo, forcing the evacuation of two public buildings, a regional official told Reuters.
To the north in Valladolid, a man of 93 collapsed and died due to the heat, police said. And in a small town outside Cordoba, a 17-year-old died of heat-related effects after jumping into a swimming pool to cool off.
Since 1975, Spain has registered nine heatwaves in June, including five in the last decade, according to the Spanish meteorological office.
In France, one boy was seriously hurt when he was thrown back by a jet of water from a fire hydrant. Some 4,000 schools were either closed or running a limited service to help working parents unable to stay at home.
State-run rail operator SNCF offered free cancellations or exchanges on long-distance trips, social workers helped homeless people cope with the heat, and French families with elderly relatives who were ill or living alone were advised to call or visit them twice a day and take them to cool places.
The greater Paris region, Ile de France, has banned more than half of cars from its roads as the stifling heat worsened air pollution, the toughest restriction provided for -- although all cars were to be allowed to leave the city as school holidays began.
The cities of Lyon, Strasbourg and Marseille have also restricted traffic.