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St Malo weather in August 2025
Expect 21°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in St Malo in August. Check more long-term weather averages for St Malo in August before you book your next holiday to France in 2025/2026.
- 21°C max day temperature
21 - 7 hours of sunshine per day
- 12 days with some rainfall
12 - 13°C min night temperature
13 - 14 hours of daylight per day
14 - No heat & humidity
0 - 48 mm of monthly rainfall
48 - 6 (High) UV index
6 - 18°C sea temperature
18
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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 / mm) | Imperial (°F / inches)
More about France
How hot is it in St Malo in August?
Daytime temperatures usually reach 21°C in St Malo in August, falling to 13°C at night.
How sunny is it in St Malo in August?
There are normally 7 hours of bright sunshine each day in St Malo in August - that's 51% of daylight hours.
How warm is the sea around St Malo in August?
The average sea temperature around St Malo in August is 18°C.
Does it rain in St Malo in August?
There are usually 12 days with some rain in St Malo in August and the average monthly rainfall is 48mm.
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.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:42 | 20:46 |
| Saturday, 16th August 2025 | 06:03 | 20:21 |
| Sunday, 31st August 2025 | 06:24 | 19:52 |
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