Measurements:
°C
°F
La Rochelle
46°F
SE 25 mph
Feels like: 36°F
Precip: 100%
World Resorts France La Rochelle Weather

La Rochelle Sea Water Temperature

Current Sea Water Temperature:
+44.0°F
Maximum Sea Water Temperature in January: 53.6°F
Minimum Sea Water Temperature in January: 44.0°F
Average water temperature in January: 48.7°F

Sea Water Temperature for the Last 10 Days:

January 09 44.0°F January 04 45.4°F
January 08 45.4°F January 03 46.2°F
January 07 45.0°F January 02 46.8°F
January 06 44.8°F January 01 47.6°F
January 05 44.4°F December 31 48.0°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: 2025 2024 2023

The average sea surface temperature in August 2025 for La Rochelle was 72.4°F. The maximum and minimum values were 70.4°F and 73.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for La Rochelle was 72.6°F. The maximum and minimum values were 70.4°F and 75.8°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 17 days
September 16 days
The most warm months:
August 77.0 °F
July 76.1 °F
September 72.9 °F
Warmest sea temperature:
August 71.6 °F
July 70.7 °F
September 69.0 °F
The most cold months:
January 49.0 °F
February 49.3 °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
Annecy +26
Antibes +46
Biarritz +50
Bordeaux +46
Cannes +46
Chamonix +12
Corsica +48
Etretat +42
Marseilles +42
Menton +48
Montpellier +44
Nice +40
Paris +40
Saint-Tropez +44
Toulouse +40
24 Hours Weather Forecast
La Rochelle
Local time: 03:36
10 jan, saturday
0600 46°F
SE
24 mph
0900 46°F
SE
22 mph
1200 48°F
SE
22 mph
1500 50°F
SE
20 mph
1800 46°F
SE
14 mph
2100 46°F
SE
9 mph
11 jan, sunday
0000 44°F
SW
4 mph
0300 42°F
NW
7 mph