July in Saint-Louis averages a daily high of 25.2°C with nights around 17.8°C. Expect roughly 12.2 wet days totalling 53.6mm. 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. 18 years of July data.