Current sea water temperature:
+53.8°F
| Minimum sea water temperature in December: | 60.4°F |
| Maximum sea water temperature in December: | 52.7°F |
| Average sea water temperature in December: | 55.4°F |
| more information | |
14 days
forecast
forecast
| Arcachon |
monthly
weather
weather
| Arcachon |
Sea water temperature for the last 10 days:
| December 31 | 53.8°F | December 26 | 54.7°F |
| December 30 | 54.0°F | December 25 | 54.9°F |
| December 29 | 54.1°F | December 24 | 54.9°F |
| December 28 | 54.3°F | December 23 | 54.1°F |
| December 27 | 54.5°F | December 22 | 54.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Arcachon?
Based on the data about daily sea water temperature for the last three years the warmest sea in Arcachon was noticed in August, July and September.
Monthly Sea Temperatures in Arcachon, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 72.6°F. The highest and lowest sea temperatures during the month were 73.8°F and 71.2°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 70.9°F. The highest and lowest sea temperatures during the month were 73.0°F and 68.4°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 69.0°F. The highest and lowest sea temperatures during the month were 71.1°F and 65.7°F.
current
weather
weather
| Arcachon |
weather in
January
January
| Arcachon |
Best time for vacation in Arcachon
Arcachon on a weather map
Places in France:
Name
°F
24 Hours Forecast
Arcachon
Local time: 20:48
December 31, wednesday
2100
36°F
W
4 mph
4 mph
January 01, thursday
0000
36°F
W
5 mph
5 mph
0300
34°F
NW
5 mph
5 mph
0600
34°F
NW
6 mph
6 mph
0900
36°F
NW
7 mph
7 mph
1200
43°F
NW
6 mph
6 mph
1500
48°F
NW
4 mph
4 mph
1800
43°F
NW
6 mph
6 mph
