French authorities have issued a red alert for 16 departments, including Paris, where temperatures are expected to reach 40C, leading to parks staying open overnight for cooling.
Nearly 1,900 schools across France have been shut, a significant increase from Monday, with parents in Paris advised to keep children home on Tuesday and Wednesday.
Cities like Marseille and Orleans are offering free access to public pools and air-conditioned museums to help residents cope with the extreme heat.
The continent continues to grapple with an extreme heatwave, with two heat-related deaths in Italy and dozens of warnings across multiple European countries.