St Malo weather in August 2025

Expect daytime maximum temperatures of 70°F in St Malo, France in August based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 1.9 inches of rainfall in the month.

• 70
  70°F max day temperature
• 7
  7 hours of sunshine per day
• 12
  12 days with some rainfall
• 55
  55°F min night temperature
• 14
  14 hours of daylight per day
• 0
  No heat & humidity
• 1.9
  1.9 inches of monthly rainfall
• 6
  6 (High) UV index
• 64
  64°F sea temperature

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The August weather guide for France (St Malo) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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St Malo August sunrise & sunset times

Browse the sunrise and sunset times for St Malo in August 2025. Select a month to view St Malo sunrise and sunset times for the next 12 months.

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