Measurements:
°C
°F
Saint Malo
64°F
SE 21 mph
Feels like: 64°F
Precip: 23%
World Resorts France Saint Malo Weather

7 Day Weather Forecast

09.09
wed
DAY
64°F
SE 13 mph
precip
18%
NIGHT
62°F
SE 7 mph
precip
15%
09.10
thu
DAY
62°F
NE 7 mph
precip
5%
NIGHT
64°F
SE 11 mph
precip
19%
09.11
fri
DAY
66°F
E 7 mph
precip
28%
NIGHT
66°F
SE 10 mph
precip
13%
09.12
sat
DAY
64°F
E 7 mph
precip
22%
NIGHT
66°F
E 9 mph
precip
8%
09.13
sun
DAY
68°F
E 9 mph
precip
25%
NIGHT
68°F
SE 11 mph
precip
29%
09.14
mon
DAY
68°F
SE 7 mph
precip
14%
NIGHT
68°F
SW 8 mph
precip
12%
09.15
tue
DAY
70°F
W 7 mph
precip
8%
NIGHT
70°F
W 12 mph
precip
9%

Saint Malo Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Saint Malo was 18.4°F. The maximum and minimum values were 17.1°F and 19.7°F respectively.

Saint Malo on the Weather Map

Best Time to Visit Saint Malo
The most sunny months:
July 14 days
August 12 days
June 11 days
The most warm months:
August 71.7 °F
July 71.2 °F
September 68.3 °F
Warmest sea temperature:
August 68.0 °F
September 66.6 °F
July 66.2 °F
The most cold months:
January 47.2 °F
February 48.0 °F
December 50.3 °F
The most rainy months:
November 6 days
December 6 days
January 5 days
The most windy months:
December 15 mph
February 14 mph
January 14 mph