Measurements:
°C
°F
Saint Malo
52°F
NE 18 mph
Feels like: 46°F
Precip: 100%
World Resorts France Saint Malo Weather

Saint Malo Sea Water Temperature

Current Sea Water Temperature:
+48.0°F
Maximum Sea Water Temperature in February: 50.0°F
Minimum Sea Water Temperature in February: 43.8°F
Average water temperature in February: 46.9°F

Sea Water Temperature for the Last 10 Days:

February 17 48.0°F February 12 48.2°F
February 16 47.8°F February 11 47.4°F
February 15 47.4°F February 10 47.2°F
February 14 47.4°F February 09 47.8°F
February 13 47.4°F February 08 47.8°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Saint Malo was 70.0°F. The maximum and minimum values were 68.8°F and 71.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Saint Malo was 66.9°F. The maximum and minimum values were 64.2°F and 69.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Saint Malo was 68.5°F. The maximum and minimum values were 67.0°F and 69.4°F respectively.

Best Time to Visit Saint Malo
The most sunny months:
July 13 days
August 12 days
April 11 days
The most warm months:
August 71.6 °F
July 70.9 °F
September 68.3 °F
Warmest sea temperature:
August 67.8 °F
September 66.6 °F
July 66.0 °F
The most cold months:
January 47.2 °F
February 47.8 °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
Annecy +22
Antibes +46
Biarritz +50
Bordeaux +52
Cannes +42
Chamonix +10
Corsica +40
Etretat +38
Marseilles +48
Menton +50
Montpellier +48
Nice +44
Paris +40
Saint-Tropez +48
Toulouse +48
24 Hours Weather Forecast
Saint Malo
Local time: 03:36
18 feb, wednesday
0600 50°F
NE
11 mph
0900 50°F
N
9 mph
1200 52°F
N
17 mph
1500 52°F
N
28 mph
1800 50°F
NE
22 mph
2100 46°F
N
14 mph
19 feb, thursday
0000 46°F
E
19 mph
0300 48°F
E
29 mph