Measurements:
°C
°F
La Rochelle
48°F
N 8 mph
Feels like: 44°F
Precip: 67%
World Resorts France La Rochelle Weather

La Rochelle Sea Water Temperature

Current Sea Water Temperature:
+51.8°F
Maximum Sea Water Temperature in December: 57.8°F
Minimum Sea Water Temperature in December: 45.4°F
Average water temperature in December: 51.3°F

Sea Water Temperature for the Last 10 Days:

December 05 51.8°F November 30 51.6°F
December 04 52.2°F November 29 51.2°F
December 03 52.6°F November 28 52.0°F
December 02 51.0°F November 27 53.0°F
December 01 50.8°F November 26 53.6°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: 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 52.5 °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 +50
Arcachon +50
Biarritz +46
Bordeaux +44
Cannes +46
Corsica +52
Etretat +42
Marseilles +46
Menton +52
Montpellier +46
Nice +46
Paris +36
Saint-Tropez +44
Toulon +48
Toulouse +42
24 Hours Weather Forecast
La Rochelle
Local time: 09:05
05 dec, friday
1200 52°F
N
16 mph
1500 52°F
N
22 mph
1800 54°F
N
25 mph
2100 58°F
NE
24 mph
06 dec, saturday
0000 60°F
E
28 mph
0300 58°F
E
21 mph
0600 56°F
E
23 mph
0900 56°F
E
23 mph