World Resorts France Arcachon Weather

Arcachon sea water temperature

Current sea water temperature:
+52.2°F
Minimum sea water temperature in January: 56.5°F
Maximum sea water temperature in January: 50.4°F
Average sea water temperature in January: 53.0°F

Sea water temperature for the last 10 days:

January 9 52.2°F January 4 51.8°F
January 8 52.3°F January 3 53.4°F
January 7 52.2°F January 2 53.8°F
January 6 52.5°F January 1 53.6°F
January 5 52.3°F December 31 53.8°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.

Best time for vacation in Arcachon

Sunniest months:
August 18 days
September 17 days
July 17 days
Warmest months:
August 77.5 °F
July 76.8 °F
September 73.2 °F
Warmest sea temp:
August 71.3 °F
July 69.9 °F
September 68.9 °F
Coldest months:
January 50.5 °F
February 52.2 °F
December 53.4 °F
Rainiest months:
November 6 days
December 6 days
January 6 days
Windiest months:
January 9.8 mph
December 9.7 mph
February 9.6 mph

Arcachon on a weather map

Arcachon
+48°F
SE 24 mph
Feels like: +41°F
Precip.: 100%
Places in France:
Name
°F
+30°F
+48°F
+50°F
+45°F
+46°F
+48°F
+45°F
+48°F
+45°F
+43°F
+39°F
+46°F
+43°F
+16°F
+43°F
24 Hours Forecast
Arcachon
Local time: 04:16
January 10, saturday
0600
48°F
SE
23 mph
0900
48°F
SE
17 mph
1200
52°F
SE
17 mph
1500
52°F
SE
17 mph
1800
50°F
SE
13 mph
2100
48°F
SE
7 mph
January 11, sunday
0000
48°F
SE
3 mph
0300
46°F
N
2 mph
Units of measurement: °C / °F