🇸🇳 Weather in Saint-Louis

Saint-Louis sits at approximately 16.0° north latitude, which generally produces a tropical or sub-tropical climate, with relatively warm temperatures year-round and distinct wet and dry seasons rather than a clear summer–winter cycle. Local geography (coast vs. inland, altitude, prevailing winds) shapes the specific weather patterns shown in the forecast above.

Climatically, the best time to visit Saint-Louis is generally the local dry season — typically the cooler months of the year for that latitude — when humidity and rainfall are at their lowest. Exact timing depends on what you're after — fewer crowds, specific events, lowest rainfall, or warmest weather. Check the forecast above before planning a short trip.

In the Northern Hemisphere, summer falls in June–August and winter in December–February. Spring runs March–May and autumn runs September–November. Saint-Louis follows this Northern/Southern Hemisphere pattern based on its latitude. See the sun page for exact daylight hours through the year.