Weather in Saint-Louis in September
Saint-Louis, Réunion averages a high of 25.2°C (77.4°F) and low of 19.5°C (67.1°F) in September, with 10 rain days and 11.4 hours of daily sunshine. Travel score: 82.9/100 (Excellent). The best time to visit Saint-Louis is September.
High
25°C77°F
Low
20°C67°F
🌧️
10
rain days
☀️
11.4
hrs/day sunshine
💧
76%
humidity
83— Excellent
September in Saint-Louis is warm and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in Saint-Louis?
How much does it rain in Saint-Louis in September?
Saint-Louis receives an average of 40.8mm of rainfall across 10 rainy days in September. The annual total is 1347mm.
What should I pack for Saint-Louis in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Réunion in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31