Measurements:
°C
°F
La Rochelle
70°F
NW 17 mph
Feels like: 70°F
Precip: 29%
World Resorts France La Rochelle Weather

La Rochelle Sea Water Temperature

Current Sea Water Temperature:
+68.8°F
Maximum Sea Water Temperature in September: 75.8°F
Minimum Sea Water Temperature in September: 63.4°F
Average water temperature in September: 69.2°F

Sea Water Temperature for the Last 10 Days:

September 28 68.8°F September 23 70.8°F
September 27 70.2°F September 22 71.8°F
September 26 70.6°F September 21 71.6°F
September 25 70.2°F September 20 71.6°F
September 24 70.2°F September 19 71.6°F

When is the Warmest Sea for La Rochelle?

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

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 La Rochelle was 75.1°F. The maximum and minimum values were 72.8°F and 78.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for La Rochelle was 75.1°F. The maximum and minimum values were 71.6°F and 78.0°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for La Rochelle was 72.5°F. The maximum and minimum values were 68.8°F and 75.0°F respectively.

Best Time to Visit La Rochelle
The most sunny months:
August 18 days
July 18 days
September 16 days
The most warm months:
August 77.0 °F
July 76.4 °F
September 72.8 °F
Warmest sea temperature:
August 71.8 °F
July 71.0 °F
September 69.2 °F
The most cold months:
January 48.9 °F
February 49.4 °F
December 52.4 °F
The most rainy months:
November 6 days
December 6 days
February 5 days
The most windy months:
December 14 mph
November 14 mph
January 14 mph

La Rochelle 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
La Rochelle
Local time: 04:39
29 sep, tuesday
0600 70°F
NW
17 mph
0900 70°F
NW
19 mph
1200 72°F
NW
17 mph
1500 76°F
N
17 mph
1800 76°F
N
14 mph
2100 74°F
NW
8 mph
30 sep, wednesday
0000 76°F
NW
24 mph
0300 76°F
NW
25 mph