Measurements:
°C
°F
Biarritz
76°F
SE 7 mph
Feels like: 80°F
Precip: 6%
World Resorts France Biarritz Weather

Biarritz Sea Water Temperature

Current Sea Water Temperature:
+79.4°F
Maximum Sea Water Temperature in July: 80.8°F
Minimum Sea Water Temperature in July: 67.8°F
Average water temperature in July: 74.5°F

Sea Water Temperature for the Last 10 Days:

July 30 79.4°F July 25 80.4°F
July 29 79.4°F July 24 80.6°F
July 28 79.0°F July 23 80.4°F
July 27 78.6°F July 22 80.2°F
July 26 79.0°F July 21 80.6°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: 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: 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: 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 75.8 °F
September 74.1 °F
Warmest sea temperature:
August 75.6 °F
July 74.5 °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
December 6 days
The most windy months:
January 9 mph
February 9 mph
December 9 mph

Biarritz on the Weather Map

France Resorts:
NAME
Antibes +88
Arcachon +80
Cannes +90
Corsica +92
Deauville +76
Etretat +70
Marseilles +86
Menton +88
Montpellier +86
Nice +90
Paris +98
Perpignan +92
Saint-Tropez +92
Toulon +90
Toulouse +104
24 Hours Weather Forecast
Biarritz
Local time: 16:34
30 jul, thursday
1800 76°F
SE
7 mph
2100 74°F
E
7 mph
31 jul, friday
0000 72°F
SE
6 mph
0300 70°F
S
4 mph
0600 70°F
S
4 mph
0900 72°F
S
1 mph
1200 74°F
SE
6 mph
1500 76°F
SE
9 mph