St Malo weather in September 2024

Expect 20°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in St Malo in September. Check more long-term weather averages for St Malo in September before you book your next holiday to France in 2024/2025.

  • 20°C maximum daytime temperature in September in St Malo20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in September in St Malo13
    13 days with some rainfall
  • 12°C minimum night-time temperature in September in St Malo12
    12°C min night temperature
  • 13 hours of daylight per day in September in St Malo13
    13 hours of daylight per day
  • No heat & humidity in September in St Malo0
    No heat & humidity
  • 62 mm monthly rainfall in September in St Malo62
    62 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in St Malo4
    4 (Moderate) UV index
  • 18°C sea temperature in September in St Malo18
    18°C sea temperature

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