Measurements:
°C
°F
La Rochelle
54°F
S 14 mph
Feels like: 48°F
Precip: 0%
World Resorts France La Rochelle Weather

La Rochelle Sea Water Temperature

Current Sea Water Temperature:
+54.2°F
Maximum Sea Water Temperature in March: 56.2°F
Minimum Sea Water Temperature in March: 44.4°F
Average water temperature in March: 50.8°F

Sea Water Temperature for the Last 10 Days:

March 30 54.2°F March 25 55.6°F
March 29 54.2°F March 24 55.2°F
March 28 54.0°F March 23 55.2°F
March 27 54.8°F March 22 55.4°F
March 26 55.0°F March 21 55.2°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: 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 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
Annecy +38
Antibes +56
Biarritz +54
Bordeaux +54
Cannes +56
Chamonix +22
Corsica +46
Etretat +50
Marseilles +52
Menton +58
Montpellier +52
Nice +54
Paris +50
Saint-Tropez +58
Toulouse +48
24 Hours Weather Forecast
La Rochelle
Local time: 20:46
30 mar, monday
2100 54°F
S
14 mph
31 mar, tuesday
0000 50°F
S
14 mph
0300 46°F
S
14 mph
0600 44°F
S
14 mph
0900 44°F
S
12 mph
1200 52°F
S
12 mph
1500 54°F
SE
10 mph
1800 56°F
SE
12 mph