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France faces a fourth intense heatwave starting early August, with temperatures reaching up to 42°C and health warnings issued.

France is bracing for a fourth heatwave of the summer set to begin in early August 2026. Meteorological forecasts predict temperatures soaring up to 42°C in some regions, with the heatwave lasting potentially until August 9. Authorities have reactivated heatwave vigilance alerts due to the risks posed by prolonged high temperatures to public health, infrastructure, and the environment.