Measurements:
°C
°F
Arcachon
54°F
NE 14 mph
Feels like: 48°F
Precip: 100%
World Resorts France Arcachon Weather

Arcachon Sea Water Temperature

Current Sea Water Temperature:
+52.2°F
Maximum Sea Water Temperature in February: 54.6°F
Minimum Sea Water Temperature in February: 47.8°F
Average water temperature in February: 51.6°F

Sea Water Temperature for the Last 10 Days:

February 17 52.2°F February 12 53.0°F
February 16 51.4°F February 11 53.4°F
February 15 51.4°F February 10 52.2°F
February 14 52.4°F February 09 52.0°F
February 13 53.2°F February 08 52.6°F

When is the Warmest Sea for Arcachon?

According to our data for the last three years for Arcachon 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 Arcachon was 75.1°F. The maximum and minimum values were 73.6°F and 76.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Arcachon was 73.3°F. The maximum and minimum values were 70.4°F and 75.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Arcachon was 71.2°F. The maximum and minimum values were 67.4°F and 73.4°F respectively.

Best Time to Visit Arcachon
The most sunny months:
August 18 days
September 17 days
July 17 days
The most warm months:
August 80.6 °F
July 79.8 °F
September 75.8 °F
Warmest sea temperature:
August 73.6 °F
July 72.1 °F
September 70.9 °F
The most cold months:
January 50.5 °F
February 52.5 °F
December 53.8 °F
The most rainy months:
November 6 days
December 6 days
January 6 days
The most windy months:
January 10 mph
December 9 mph
February 9 mph

Arcachon on the Weather Map

France Resorts:
NAME
Annecy +22
Antibes +46
Biarritz +50
Bordeaux +52
Cannes +42
Chamonix +10
Corsica +40
Etretat +38
Marseilles +48
Menton +50
Montpellier +48
Nice +44
Paris +40
Saint-Tropez +48
Toulouse +48
24 Hours Weather Forecast
Arcachon
Local time: 03:35
18 feb, wednesday
0600 54°F
NE
12 mph
0900 54°F
N
9 mph
1200 58°F
N
11 mph
1500 60°F
N
20 mph
1800 52°F
NE
18 mph
2100 50°F
E
31 mph
19 feb, thursday
0000 48°F
E
30 mph
0300 48°F
E
29 mph