August in La Rochelle averages a daily high of 22.6°C with nights around 17.7°C. Expect roughly 8.6 wet days totalling 39.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit La Rochelle is June–September.
Based on PTE DE CHASSIRON, FR (23.8km), 1995–2024. 30 years of August data.