Arcachon weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Poor
Best time to visit: July – August
What is the weather like in Arcachon in October?
In October, Arcachon is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 80 mm in total. All in all, October is not an ideal month for a holiday in Arcachon.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 66 | 25 | 6 |
| Day | 24° | 20° | 14° |
| Night | 16° | 13° | 9° |
| Sea | 20° | 18° | 16° |
| Sun | 7 h | 5 h | 3 h |
| Rain days | 9 | 11 | 14 |
More details for October
- Daylight
- 11 h 4 min08:18 – 19:22
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %12 %
- Seaweight 25 %17 %
- Sunshineweight 20 %32 %
- Few rainy daysweight 20 %51 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Arcachon in October: quick answers
Is Arcachon hot in October?
No. In October, Arcachon is mild: daytime highs average 20 °C and nights drop to about 13 °C.
Can you swim in Arcachon in October?
Only if you don't mind cold water: in October the sea averages just 18.2 °C. Comfortable swimming is possible from July to September.
Does it rain much in Arcachon in October?
Rain is frequent, with about 11 rainy days and 80 mm in total.
Arcachon month by month
The whole year in ArcachonAll destinations: FranceWhere to go in OctoberSea temperature in October
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