Measurements:
°C
°F
Biarritz
50°F
NW 7 mph
Feels like: 48°F
Precip: 0%
World Resorts France Biarritz Weather

7 Day Weather Forecast

12.17
wed
DAY
56°F
E 4 mph
precip
81%
NIGHT
50°F
NW 7 mph
precip
0%
12.18
thu
DAY
60°F
N 8 mph
precip
0%
NIGHT
56°F
NE 7 mph
precip
0%
12.19
fri
DAY
52°F
NE 4 mph
precip
100%
NIGHT
52°F
N 6 mph
precip
100%
12.20
sat
DAY
52°F
NW 5 mph
precip
0%
NIGHT
50°F
N 8 mph
precip
0%
12.21
sun
DAY
50°F
NW 9 mph
precip
100%
NIGHT
42°F
N 7 mph
precip
0%
12.22
mon
DAY
46°F
W 6 mph
precip
0%
NIGHT
46°F
NE 5 mph
precip
100%
12.23
tue
DAY
52°F
SE 14 mph
precip
100%
NIGHT
50°F
SE 5 mph
precip
100%

Biarritz Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Biarritz was 14.7°F. The maximum and minimum values were 14.3°F and 15.5°F respectively.

Biarritz on the Weather Map

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 51.0 °F
February 52.8 °F
December 54.6 °F
The most rainy months:
November 8 days
January 7 days
March 6 days
The most windy months:
January 9 mph
December 9 mph
February 9 mph