Arcachon weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Excellent
Best time to visit: July – August
What is the weather like in Arcachon in July?
In July, Arcachon is warm: daytime highs average 26 °C, and nights cool down to about 18 °C. The sea averages 20.8 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 40 mm. On about 5 days the thermometer climbs to 30 °C or more. All in all, July is an excellent month for a holiday in Arcachon.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 15 h 16 min06:33 – 21:48
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 4 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 46 %on averageAll months
- Hot days
- 5 days30 °C or moreAll months
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %54 %
- Sunshineweight 20 %88 %
- Few rainy daysweight 20 %75 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
Arcachon in July: quick answers
Is Arcachon hot in July?
Warm rather than hot: in July, daytime highs in Arcachon average 26 °C and nights cool to about 18 °C. On about 5 days the thermometer climbs to 30 °C or more.
Can you swim in Arcachon in July?
Yes. In July the sea averages 20.8 °C – refreshing for a swim.
Does it rain much in Arcachon in July?
Rain falls on about 8 days, adding up to 40 mm.
Arcachon month by month
The whole year in ArcachonAll destinations: FranceWhere to go in JulySea temperature in July
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