Biarritz weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: July – August
What is the weather like in Biarritz in December?
In December, Biarritz is cool: daytime highs average 12 °C, and nights cool down to about 6 °C. The sea averages 13.9 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. It rains often – on about 14 days, adding up to 135 mm. All in all, December is not an ideal month for a holiday in Biarritz.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 8 | 10 | 10 |
| Day | 14° | 12° | 11° |
| Night | 9° | 6° | 5° |
| Sea | 16° | 14° | 13° |
| Sun | 5 h | 4 h | 5 h |
| Rain days | 16 | 14 | 14 |
More details for December
- Daylight
- 8 h 59 min08:32 – 17:31
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 21 km/haverage daily peak
- Cloud cover
- 68 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Paris
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %22 %
- Few rainy daysweight 20 %26 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in December
- A jumper for the evenings
- Rain jacket or umbrella
Biarritz in December: quick answers
Is Biarritz hot in December?
No. In December, Biarritz is cool: daytime highs average 12 °C and nights drop to about 6 °C.
Can you swim in Biarritz in December?
Only if you don't mind cold water: in December the sea averages just 13.9 °C. Comfortable swimming is possible from July to September.
Does it rain much in Biarritz in December?
It rains often – on about 14 days, adding up to 135 mm.
Biarritz month by month
The whole year in BiarritzAll destinations: FranceWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)