Best Time to Visit Saint-Louis, Trarza, Mauritania
Saint-Louis is at its sunniest and driest in January–December.
The best time to visit Saint-Louis for sunny, dry weather is October–July — 10 months of the year fit our sunny profiles at this specific location. The drier stretch runs through November–May; the wetter half falls in June–October. At the city itself, monthly average temperatures range from 21.7°C / 71.1°F in January to 28.2°C / 82.8°F in September, with rainfall from 0 mm / 0 in (April) to 94 mm / 3.7 in (August). These are point-value climate normals sampled at Saint-Louis, Trarza, Mauritania's coordinates — usually more actionable for travellers than the country-wide average. Saint-Louis's climate is broadly hot arid. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| January | 21.7°C71.1°F | 2 mm0.1″ | Sunny & Warm, Sunny & Mild |
| February | 22.7°C72.9°F | 1 mm0″ | Sunny & Warm |
| March | 23°C73.4°F | 1 mm0″ | Sunny & Warm |
| April | 22.9°C73.2°F | 0 mm0″ | Sunny & Warm |
| May | 23.6°C74.5°F | 0 mm0″ | Sunny & Warm |
| June | 25.6°C78.1°F | 6 mm0.2″ | Sunny & Hot, Sunny & Warm |
| July | 26.8°C80.2°F | 37 mm1.5″ | Sunny & Hot |
| October | 27.7°C81.9°F | 15 mm0.6″ | Sunny & Hot |
| November | 25.5°C77.9°F | 2 mm0.1″ | Sunny & Hot, Sunny & Warm |
| December | 23°C73.4°F | 1 mm0″ | Sunny & Warm |
Frequently asked questions
When is the best time to visit Saint-Louis?
The best time to visit Saint-Louis for sunny, dry weather is January, February, March, April, May, June, July, October, November, December. At the city itself, the warmest month is September averaging 28.2°C / 82.8°F, and the driest is April with about 0 mm / 0 in of rain. These are point-value climate normals sampled at Saint-Louis's coordinates.
When is the rainy season in Saint-Louis?
The rainy season at Saint-Louis, Trarza runs through June–October, when monthly rainfall exceeds the annual median of about 2 mm / 0.1 in. The wettest single month is August (94 mm / 3.7 in).
What is the driest month in Saint-Louis?
The driest month in Saint-Louis is April, averaging about 0 mm / 0 in of rainfall. Temperature that month averages 22.9°C / 73.2°F.
What months should I avoid visiting Saint-Louis?
The least comfortable months for travel to Saint-Louis — based on point-value climate at the city — are January, February, March, April, July, August, September, December. These are the wettest or coolest months at this location. Rainfall peaks at 94 mm / 3.7 in in August, and the coldest month averages 21.7°C / 71.1°F.
Is Saint-Louis climate different from Mauritania overall?
Yes, usually. Our Saint-Louis figures are point-value climate normals sampled at the city itself, while our Mauritania figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Saint-Louis specifically — usually the more actionable data for a traveller planning to spend time in the city.