Climate Overview
The climate in Arcachon - La Teste-de-Buch is temperate. The average annual temperature is 15°C and approximately 923mm of precipitation falls per year. Arcachon - La Teste-de-Buch receives a notable amount of rainfall throughout the year, including during its driest month. Arcachon - La Teste-de-Buch is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 5°C.
Temperature
Temperatures in Arcachon - La Teste-de-Buch vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 22°C. January is the coolest month, with minimum temperatures around 5°C and an average of 8°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.
Precipitation
Arcachon - La Teste-de-Buch is a moderately rainy area, receiving approximately 923mm of precipitation annually, which averages out to around 77mm per month. The wettest month is December, averaging 104mm of rainfall. November and June also tend to see above-average precipitation. The driest month is July, with just 34mm. That's 70mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Arcachon - La Teste-de-Buch is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 11km/h in spring, 10km/h in summer, 11km/h in autumn.
Seasons
87 days until Winter
It is currently autumn in Arcachon - La Teste-de-Buch, which began on September 23, 2026. Arcachon - La Teste-de-Buch is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 27°C, while the coldest stretch bottoms out in January near 5°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 8 to 21°C. Precipitation is moderate at around 226mm for the season, averaging 75mm per month. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 16 to 27°C. Precipitation is moderate at around 175mm for the season, averaging 58mm per month. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 8 to 24°C. Precipitation is moderate at around 254mm for the season, averaging 85mm per month. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 5 to 13°C. Precipitation is moderate at around 268mm for the season, averaging 89mm per month. Winds are generally light, averaging 12km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Arcachon - La Teste-de-Buch is during May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 68mm per month. By contrast, January can be quite cold with temperatures dropping to 5°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Arcachon - La Teste-de-Buch based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
