Measurements:
°C
°F
La Rochelle
72°F
E 15 mph
Feels like: 72°F
Precip: 29%
World Resorts France La Rochelle Weather

La Rochelle Sea Water Temperature

Current Sea Water Temperature:
+76.6°F
Maximum Sea Water Temperature in August: 78.6°F
Minimum Sea Water Temperature in August: 68.2°F
Average water temperature in August: 71.7°F

Sea Water Temperature for the Last 10 Days:

August 19 76.6°F August 14 77.8°F
August 18 76.8°F August 13 78.6°F
August 17 77.4°F August 12 77.6°F
August 16 76.4°F August 11 75.4°F
August 15 76.8°F August 10 74.2°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 75.3°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: 2025 2024 2023

The average sea surface temperature in September 2025 for La Rochelle was 69.2°F. The maximum and minimum values were 66.6°F and 71.4°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 72.9 °F
Warmest sea temperature:
August 71.6 °F
July 71.0 °F
September 69.0 °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
Antibes +84
Arcachon +72
Cannes +84
Corsica +84
Deauville +62
Etretat +68
Marseilles +84
Menton +84
Montpellier +84
Nice +80
Paris +72
Perpignan +88
Saint-Tropez +86
Toulon +84
Toulouse +86
24 Hours Weather Forecast
La Rochelle
Local time: 20:12
19 aug, wednesday
2100 72°F
E
15 mph
20 aug, thursday
0000 70°F
SE
13 mph
0300 68°F
SE
14 mph
0600 64°F
SE
11 mph
0900 66°F
SE
6 mph
1200 70°F
E
12 mph
1500 70°F
E
13 mph
1800 70°F
E
16 mph