Weather in St. Moritz in September
St. Moritz, Switzerland averages a high of 12.8°C (55°F) and low of 4°C (39.2°F) in September, with 12 rain days and 9.4 hours of daily sunshine. Travel score: 60.2/100 (Good). The best time to visit St. Moritz is August.
High
13°C55°F
Low
4°C39°F
🌧️
12
rain days
☀️
9.4
hrs/day sunshine
💧
83%
humidity
60— Good
September in St. Moritz is cool and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in St. Moritz?
How much does it rain in St. Moritz in September?
St. Moritz receives an average of 99.3mm of rainfall across 12 rainy days in September. The annual total is 1254.7mm.
What should I pack for St. Moritz in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 13°C
🧶
Sweaters and warm layers
Layer up for comfort
🧤
Warm gloves
Cold nights around 4°C
🧣
Warm scarf
Protect against cold winds
🎉Visiting Switzerland in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31