I don’t know anything about the ones in France, but it’s worth noting that the second biggest nuclear power plant in the US is in Phoenix. They work in the heat, you just have to be prepared for that.

Idk who thought it was a good idea to put a nuclear power plant, which needs water both for cooling and for steam generation, in the middle of a desert, but there totally is one. It uses wastewater from Phoenix for both and has to remove radionuclides twice (going in, it’s from people’s pee!)