Measurements:
°C
°F
Arcachon
60°F
SW 4 mph
Feels like: 60°F
Precip: 10%
World Resorts France Arcachon Weather

Arcachon Sea Water Temperature

Current Sea Water Temperature:
+65.4°F
Maximum Sea Water Temperature in October: 73.0°F
Minimum Sea Water Temperature in October: 60.4°F
Average water temperature in October: 66.6°F

Sea Water Temperature for the Last 10 Days:

October 19 65.4°F October 14 67.6°F
October 18 66.4°F October 13 65.8°F
October 17 67.4°F October 12 66.6°F
October 16 67.2°F October 11 66.4°F
October 15 68.0°F October 10 67.8°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Arcachon was 78.4°F. The maximum and minimum values were 76.2°F and 80.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Arcachon was 76.4°F. The maximum and minimum values were 72.4°F and 78.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Arcachon was 72.3°F. The maximum and minimum values were 68.8°F and 76.2°F respectively.

Best Time to Visit Arcachon
The most sunny months:
August 18 days
July 17 days
September 16 days
The most warm months:
August 80.5 °F
July 80.1 °F
June 75.6 °F
Warmest sea temperature:
August 73.9 °F
July 72.4 °F
September 71.0 °F
The most cold months:
January 50.5 °F
February 52.7 °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
February 9 mph
December 9 mph

Arcachon on the Weather Map

France Resorts:
NAME
F°
Antibes +72
Bordeaux +62
Cannes +72
Corsica +74
Deauville +56
Etretat +56
Marseilles +70
Menton +74
Montpellier +70
Nice +70
Paris +56
Perpignan +56
Saint-Tropez +72
Toulon +72
Toulouse +52
24 Hours Weather Forecast
Arcachon
Local time: 15:30
19 oct, monday
1800 58°F
NE
2 mph
2100 58°F
N
4 mph
20 oct, tuesday
0000 56°F
E
7 mph
0300 56°F
E
6 mph
0600 58°F
E
7 mph
0900 58°F
E
6 mph
1200 60°F
E
7 mph
1500 62°F
E
9 mph