France has been experiencing an extended heatwave with fluctuating levels of heat alerts issued by Météo-France across various departments since mid-June 2025. Initially, the number of departments under yellow vigilance for heat ranged from 18 to 39 between June 18 and June 24. Orange vigilance, indicating a higher risk level, was first reported for 13 departments on June 21, then fluctuated between 2 and 22 departments over the following days. By June 27, 14 departments were placed under orange vigilance. The situation escalated significantly by June 28, with 73 departments under orange vigilance, and further increased to 84 departments on June 29 and 30. After this peak, the number of departments under orange vigilance decreased to 17 on July 3 and stabilized at 14 departments in the South-East region by July 4, with 10 departments under yellow vigilance. Weather forecasts for July 4 indicated sunny conditions nationwide with risks of afternoon thunderstorms in the south. The sustained heatwave has prompted ongoing monitoring and adjustments to vigilance levels across France.