August · France
Best time to visit Saint-Malo in August Weather, crowds & prices
Weather in Saint-Malo in August
Average temperature 20°C, 41 mm of rain, about 20 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
8.0/10
Ranked #2 of 12 months
- Avg temp
- 20°C
- Rainfall
- 41 mm
- Humidity
- 74%
- Days with 6h+ sun
- 20
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Saint-Malo scores 8.0/10 for beach and coastal travel - one of the top 12-month picks (#2). Expect around 20°C, 41 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Saint-Malo's walled corsair city faces the Channel, with tides, ramparts and ferry links to England.
August holds up well in Saint-Malo — 2nd best month
With 20°C (68°F) on average, August delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 41 mm of rain, any showers tend to pass through rather than settle in; about 20 days with 6+ hours of sunshine and 14.2 hours of daylight fill the rest.
That is 8/10 on the same scale — 2nd of 12 months, versus 8/10 for the best month here.
Pack light clothing, swimwear and real sun protection.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Saint-Malo in August?
- In August, Saint-Malo averages 20°C, 41 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 8.0/10.
- Is August a good time to visit Saint-Malo?
- August earns a 8.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Saint-Malo in August?
- Expect about 41 mm of rain in August. Average humidity is 74% and there are about 20 days with 6+ hours of sunshine.
Curated in Saint-Malo
Tickets & experiences
Things to do in Saint-Malo
Saint-Malo, France. Live activities and tours from GetYourGuide, matched to this destination.