Arcachon Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Arcachon.
Climate overview of Arcachon
The climate in Arcachon, Aquitaine, France, is marked by large temperature swings across the seasons, ranging from 26°C (79°F) in August to 12°C (54°F) in January.
Annual rainfall is moderate at around 889 mm (35 in), with November being the wettest month. The city also has warm summers and cold winters. The most sunshine falls in July, with an average of 8.3 hours of daily sunshine.
Arcachon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Arcachon - and find the best time to visit.
Monthly Temperature in Arcachon
In Arcachon, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 26°C (79°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 12°C (54°F).
At night, temperatures range from around 18°C (64°F) in August to 6°C (43°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Arcachon
On average, Arcachon receives a reasonable amount of rainfall, with an annual precipitation of 889 mm (35 in). Arcachon can be quite wet during November, receiving approximately 107 mm (4.2 in) of precipitation over 16 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 49 mm (1.9 in) of precipitation spread across 11 rainy days. For more details, please visit our Arcachon Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Arcachon
Arcachon can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 8.3 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Arcachon by Month
The city experiences its highest humidity in January, reaching 87%. In June, the humidity drops to its lowest level at 75%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Arcachon
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September and October
- Warmest weather: July and August
- Most sunshine: June, July and August
- Fewer rainy days: June, July, August, September and October
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Arcachon
What is the best time to visit Arcachon?
May, June, July, August, September and October typically offer the most optimal weather in Arcachon. In contrast, January, February, November and December tend to have less optimal conditions. Arcachon has warm summers and cold winters.
What temperatures can I expect in Arcachon?
Daytime highs range from 12°C (54°F) in January to 26°C (79°F) in August. Nighttime lows range from 6°C (43°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Arcachon get?
Annual rainfall is around 889 mm (35 in). November is the wettest month with 107 mm (4.2 in), while July is the driest with 49 mm (1.9 in).
How sunny is Arcachon?
Arcachon receives around 2,040 hours of sunshine per year. July is the sunniest month with 249 hours, while December is the cloudiest with just 83 hours. Overall, Arcachon enjoys abundant sunshine.
Arcachon 3-Day Forecast
Arcachon 3-Day Forecast
Arcachon on the map
Arcachon is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most charming villages in France
Discover France's top 10 beautiful villages. From Normandy to the Côte d'Azur, experience quaint squares and cobbled streets. Which one will you visit this summer?
An alternative way to discover Paris
From street art, vintage shops, vegetarian cafes, to amazing cultural events, Paris has much to offer for the creative traveler. An overview of sights that you must see if you want to visit this city in an alternative way.
Nature is allowed to take its course in the Ardeche
The Ardèche is France at its most beautiful. The authentic villages and breathtaking mountainous landscapes are one of the main reasons. he climate in Ardèche is very pleasant. Temperatures are high during summer and it is often very sunny.
Explore the natural wonders of Corsica
Corsica offers an abundance of incredible natural wonders to explore. This stunning Mediterranean island is a paradise for outdoor enthusiasts and nature lovers alike.