Measurements:
°C
°F
Biarritz
48°F
W 7 mph
Feels like: 44°F
Precip: 69%
World Resorts France Biarritz Weather

Biarritz Sea Water Temperature

Current Sea Water Temperature:
+69.6°F
Maximum Sea Water Temperature in October: 73.6°F
Minimum Sea Water Temperature in October: 61.0°F
Average water temperature in October: 67.7°F

Sea Water Temperature for the Last 10 Days:

October 19 69.6°F October 14 70.8°F
October 18 70.4°F October 13 70.8°F
October 17 71.4°F October 12 70.8°F
October 16 71.8°F October 11 70.8°F
October 15 71.6°F October 10 71.0°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 +72
Bordeaux +62
Cannes +72
Corsica +74
Deauville +56
Etretat +56
Marseilles +70
Menton +74
Montpellier +70
Nice +70
Paris +56
Perpignan +56
Saint-Tropez +72
Toulon +72
Toulouse +52
24 Hours Weather Forecast
Biarritz
Local time: 15:30
19 oct, monday
1800 48°F
W
4 mph
2100 48°F
NW
1 mph
20 oct, tuesday
0000 48°F
NW
3 mph
0300 50°F
N
2 mph
0600 50°F
NE
3 mph
0900 50°F
NE
2 mph
1200 56°F
NE
3 mph
1500 60°F
SE
6 mph