Arcachon

What is the climate like in Arcachon?

The best time to visit Arcachon is typically May – September, with trip comfort peaking in July (8.1/10). Arcachon is warmest in August, when daily highs average 76°F (24°C), and coolest in January, when lows fall to about 45°F (7°C). The wettest month is typically November and the driest is July; the year sees roughly 37 in (951 mm) of precipitation.

• Best time to visitMay – September — comfort peaks in July (8.1/10)
• Warmest monthAugust — average high 76°F (24°C)
• Coolest monthJanuary — average low 45°F (7°C)
• Wettest monthNovember (4.7 in (121 mm))
• Driest monthJuly (1.2 in (29 mm))
• Annual precipitation37 in (951 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromMont De Marsan, 99 km away (1973-2025)