Measurements:
°C
°F
Biarritz
54°F
E 9 mph
Feels like: 50°F
Precip: 80%
World Resorts France Biarritz Weather

Biarritz Sea Water Temperature

Current Sea Water Temperature:
+56.6°F
Maximum Sea Water Temperature in March: 59.2°F
Minimum Sea Water Temperature in March: 51.4°F
Average water temperature in March: 54.9°F

Sea Water Temperature for the Last 10 Days:

March 10 56.6°F March 05 56.0°F
March 09 56.0°F March 04 55.6°F
March 08 56.0°F March 03 55.8°F
March 07 55.8°F March 02 55.6°F
March 06 56.0°F March 01 55.4°F

When is the Warmest Sea for Biarritz?

According to our data for the last three years for Biarritz 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 Biarritz was 76.7°F. The maximum and minimum values were 75.0°F and 78.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Biarritz was 77.0°F. The maximum and minimum values were 75.0°F and 79.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Biarritz was 73.0°F. The maximum and minimum values were 70.0°F and 75.4°F respectively.

Best Time to Visit Biarritz
The most sunny months:
August 16 days
September 15 days
October 14 days
The most warm months:
August 77.7 °F
July 75.6 °F
September 74.1 °F
Warmest sea temperature:
August 75.6 °F
July 74.1 °F
September 72.6 °F
The most cold months:
January 50.9 °F
February 53.0 °F
December 54.5 °F
The most rainy months:
November 8 days
January 7 days
March 6 days
The most windy months:
January 9 mph
February 9 mph
December 9 mph

Biarritz on the Weather Map

France Resorts:
NAME
Antibes +56
Biarritz +54
Bordeaux +66
Cannes +56
Chamonix +36
Corsica +60
Etretat +50
Marseilles +60
Menton +56
Montpellier +58
Nice +54
Paris +60
Perpignan +58
Saint-Tropez +58
Toulouse +58
24 Hours Weather Forecast
Biarritz
Local time: 14:50
10 mar, tuesday
1500 54°F
E
9 mph
1800 54°F
E
6 mph
2100 52°F
E
4 mph
11 mar, wednesday
0000 50°F
NE
4 mph
0300 48°F
N
4 mph
0600 48°F
N
4 mph
0900 50°F
N
5 mph
1200 54°F
E
8 mph