Biarritz weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Poor
Best time to visit: July – August
What is the weather like in Biarritz in January?
In January, Biarritz is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 12.7 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. It rains often – on about 14 days, adding up to 134 mm. All in all, January is not an ideal month for a holiday in Biarritz.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 10 | 10 | 16 |
| Day | 12° | 11° | 12° |
| Night | 6° | 5° | 5° |
| Sea | 14° | 13° | 12° |
| Sun | 4 h | 5 h | 5 h |
| Rain days | 14 | 14 | 13 |
More details for January
- Daylight
- 9 h 17 min08:36 – 17:53
- UV index
- 1 · lowclear sky, noon (estimate)
- 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 %25 %
- 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 January
- A jumper for the evenings
- Rain jacket or umbrella
Biarritz in January: quick answers
Is Biarritz hot in January?
No. In January, Biarritz is cool: daytime highs average 11 °C and nights drop to about 5 °C.
Can you swim in Biarritz in January?
Only if you don't mind cold water: in January the sea averages just 12.7 °C. Comfortable swimming is possible from July to September.
Does it rain much in Biarritz in January?
It rains often – on about 14 days, adding up to 134 mm.
Biarritz month by month
The whole year in BiarritzAll destinations: France
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)