Measurements:
°C
°F
Saint Malo
64°F
NW 11 mph
Feels like: 64°F
Precip: 14%
World Resorts France Saint Malo Weather

Saint Malo Sea Water Temperature

Current Sea Water Temperature:
+68.0°F
Maximum Sea Water Temperature in September: 71.2°F
Minimum Sea Water Temperature in September: 63.2°F
Average water temperature in September: 66.8°F

Sea Water Temperature for the Last 10 Days:

September 28 68.0°F September 23 68.6°F
September 27 68.6°F September 22 68.6°F
September 26 69.2°F September 21 68.4°F
September 25 69.0°F September 20 68.4°F
September 24 69.0°F September 19 68.6°F

When is the Warmest Sea for Saint Malo?

According to our data for the last three years for Saint Malo the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Saint Malo was 71.5°F. The maximum and minimum values were 69.4°F and 73.6°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Saint Malo was 69.5°F. The maximum and minimum values were 68.0°F and 71.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Saint Malo was 70.0°F. The maximum and minimum values were 67.8°F and 72.2°F respectively.

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 68.2 °F
Warmest sea temperature:
August 68.0 °F
September 66.8 °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

Saint Malo on the Weather Map

France Resorts:
NAME
F°
Antibes +74
Bordeaux +68
Cannes +74
Corsica +70
Deauville +64
Etretat +66
Marseilles +74
Menton +76
Montpellier +74
Nice +68
Paris +68
Perpignan +72
Saint-Tropez +74
Toulon +76
Toulouse +68
24 Hours Weather Forecast
Saint Malo
Local time: 04:39
29 sep, tuesday
0600 64°F
NW
11 mph
0900 64°F
NW
12 mph
1200 70°F
N
14 mph
1500 74°F
NW
21 mph
1800 74°F
NW
17 mph
2100 70°F
N
16 mph
30 sep, wednesday
0000 68°F
NW
16 mph
0300 70°F
N
22 mph