Arcachon 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 Arcachon in December?
In December, Arcachon is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 13.7 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 13 rainy days and 97 mm in total. All in all, December is not an ideal month for a holiday in Arcachon.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 6 | 7 | 7 |
| Day | 14° | 11° | 11° |
| Night | 9° | 6° | 5° |
| Sea | 16° | 14° | 13° |
| Sun | 3 h | 3 h | 3 h |
| Rain days | 14 | 13 | 13 |
More details for December
- Daylight
- 8 h 51 min08:35 – 17:25
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 67 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+1Europe/Paris
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 20 %34 %
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
Arcachon in December: quick answers
Is Arcachon hot in December?
No. In December, Arcachon is cool: daytime highs average 11 °C and nights drop to about 6 °C.
Can you swim in Arcachon in December?
Only if you don't mind cold water: in December the sea averages just 13.7 °C. Comfortable swimming is possible from July to September.
Does it rain much in Arcachon in December?
Rain is frequent, with about 13 rainy days and 97 mm in total.
Arcachon month by month
The whole year in ArcachonAll destinations: FranceWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences