Weather in Saint Malo: August
 |
Average day temperature: | 69.4°F |
| Average night temperature: | 60.1°F | |
 |
Sea water temperature: | 66.0°F |
 |
Number of sunny days: | 12 days |
| Day length: | 13.5 - 15.1 hours | |
 |
Number of rainy days: | 3 days |
| Precipitation totals: | 1.7 in. | |
| more information | ||
forecast
| Saint Malo |
temperature
| Saint Malo |
Air temperature in August, °F
The highest day temperature during August of 2025 was 82°F. At the same time the lowest night temperature was 56°F. Daily and nightly averages during August were 72.0°F and 61.3°F.
Sea water temperature in Saint Malo in August, °F
The average sea water temperature in August of 2025 was 68.0°F. The highest and lowest sea temperatures during the month were 69.1°F and 66.9°F.
Number of sunny, partly cloudy and cloudy days in August is almost equal.
Precipitation total in August, in.
Precipitation total value in Saint Malo in August is 1.4 in. Other months of the year show relatively similar values.
The average wind speed value in August is 10.8 mph It makes August one of the least windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 8.9.
Best time for vacation in Saint Malo
Saint Malo on a weather map
12 mph
20 mph
28 mph
29 mph
17 mph
21 mph
22 mph
24 mph
