Measurements:
°C
°F
La Rochelle
60°F
S 13 mph
Feels like: 60°F
Precip: 6%
World Resorts France La Rochelle Weather

La Rochelle Sea Water Temperature

Current Sea Water Temperature:
+74.2°F
Maximum Sea Water Temperature in September: 75.8°F
Minimum Sea Water Temperature in September: 63.4°F
Average water temperature in September: 69.1°F

Sea Water Temperature for the Last 10 Days:

September 08 74.2°F September 03 73.0°F
September 07 75.0°F September 02 72.6°F
September 06 73.8°F September 01 72.6°F
September 05 74.2°F August 31 72.8°F
September 04 73.4°F August 30 74.0°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: 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 71.8 °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 +78
Arcachon +68
Cannes +78
Corsica +78
Deauville +58
Etretat +64
Marseilles +82
Menton +80
Montpellier +78
Nice +74
Paris +60
Perpignan +74
Saint-Tropez +82
Toulon +82
Toulouse +68
24 Hours Weather Forecast
La Rochelle
Local time: 02:26
09 sep, wednesday
0300 60°F
S
13 mph
0600 58°F
S
11 mph
0900 58°F
S
10 mph
1200 66°F
SE
7 mph
1500 68°F
E
18 mph
1800 68°F
E
22 mph
2100 66°F
SE
17 mph
10 sep, thursday
0000 64°F
S
9 mph