Weather in Saint Malo: May
| Average day temperature: | 59.9°F | |
| Average night temperature: | 51.1°F | |
| Sea water temperature: | 55.4°F | |
| Number of sunny days: | 11 days | |
| Day length: | 14.6 - 15.8 hours | |
| Number of rainy days: | 3 days | |
| Precipitation totals: | 1.8 in. | |
| more information | ||
forecast
| Saint Malo |
temperature
| Saint Malo |
Air temperature in May, °F
The highest day temperature during May of 2025 was 78°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during May were 64.7°F and 49.4°F.
Sea water temperature in Saint Malo in May, °F
The average sea water temperature in May of 2025 was 57.5°F. The highest and lowest sea temperatures during the month were 59.5°F and 55.4°F.
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Saint Malo in May is 1.9 in. Other months of the year show relatively similar values.
The average wind speed value in May is 11.2 mph It makes May 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 May is: 7.9.
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



























