Normandy departments began transitioning from a prolonged, severe heat wave to unstable, stormy weather on Monday, July 13, 2026.
Forecasters predicted a gradual decline in temperatures across the region.
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According to Météo France and local weather services, meteorological alerts shifted on Monday morning.
Orne was placed under a red heat wave vigilance, Eure under orange, and other Normandy departments under yellow.
Early Monday temperatures remained high, with inland areas expected to reach up to 36°C.
Coastal towns like Dieppe experienced milder conditions peaking at 24°C alongside wind gusts up to 70 km/h.
Mid-Week Storm Risk
Météo France projected that temperatures would rise again on Tuesday, reaching up to 35°C under clear skies.
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A wave of atmospheric instability is expected to sweep across the territory mid-week.
Forecasters from Météo76 and Météo-Centre noted that Wednesday would bring humid, stifling conditions.
Widespread afternoon and evening showers are expected, with a low to moderate risk of isolated thunderstorms.
The unstable weather pattern will intensify between Thursday and Friday, triggering more active rain and storm systems. This will successfully push maximum temperatures below the 30°C threshold.
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Cooler conditions are expected to stabilize over the weekend of July 18 and 19. The region will experience breathable air, light rain, and temperatures hovering around 25°C.
