Measurements:
°C
°F
Biarritz
72°F
NW 7 mph
Feels like: 72°F
Precip: 16%
World Resorts France Biarritz Weather

Biarritz Sea Water Temperature

Current Sea Water Temperature:
+74.2°F
Maximum Sea Water Temperature in September: 78.4°F
Minimum Sea Water Temperature in September: 68.6°F
Average water temperature in September: 72.7°F

Sea Water Temperature for the Last 10 Days:

September 28 74.2°F September 23 73.8°F
September 27 74.2°F September 22 74.0°F
September 26 74.2°F September 21 73.6°F
September 25 74.6°F September 20 73.6°F
September 24 73.8°F September 19 73.6°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Biarritz was 78.7°F. The maximum and minimum values were 76.8°F and 80.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Biarritz was 79.5°F. The maximum and minimum values were 77.0°F and 80.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Biarritz was 74.7°F. The maximum and minimum values were 73.6°F and 77.2°F respectively.

Best Time to Visit Biarritz
The most sunny months:
September 15 days
August 15 days
October 14 days
The most warm months:
August 77.7 °F
July 75.8 °F
September 74.2 °F
Warmest sea temperature:
August 75.8 °F
July 74.5 °F
September 72.7 °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
December 6 days
The most windy months:
January 9 mph
February 9 mph
December 9 mph

Biarritz on the Weather Map

France Resorts:
NAME
F°
Antibes +74
Bordeaux +68
Cannes +74
Corsica +70
Deauville +64
Etretat +66
Marseilles +74
Menton +76
Montpellier +74
Nice +68
Paris +68
Perpignan +72
Saint-Tropez +74
Toulon +76
Toulouse +68
24 Hours Weather Forecast
Biarritz
Local time: 04:38
29 sep, tuesday
0600 72°F
NW
7 mph
0900 70°F
NW
6 mph
1200 82°F
N
9 mph
1500 88°F
N
9 mph
1800 88°F
NW
13 mph
2100 82°F
N
6 mph
30 sep, wednesday
0000 82°F
N
8 mph
0300 80°F
N
8 mph