August in Saint-Louis averages a daily high of 25.3°C with nights around 18.2°C. Expect roughly 11.3 wet days totalling 52.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Saint-Louis is May–November.
Based on ST DENIS GILLOT, RE (45.5km), 1995–2024. 19 years of August data.