The BBC reports that France is suffesring an unprecedented heat wave attributable to climate change. This has resulted in the declaration of an emergency.
https://www.bbc.com/news/world-europe-61838543
“In Gironde, officials said public events, including some of the official 18 June Resistance celebrations, will be prohibited from Friday at 14:00 (12:00 GMT)”until the end of the heat wave". Indoor events at venues without air-conditioning are also banned.Private celebrations, such as weddings, will still be allowed.
“Everyone now faces a health risk”, local official Fabienne Buccio told France Bleu radio.
To see how unprecedented the situation is I downloaded data from the NOAA GHCND data base and plotted out daily maximums.