Weather in Winterthur in September
Winterthur, Switzerland averages a high of 19°C (66.2°F) and low of 10.9°C (51.6°F) in September, with 11 rain days and 9.2 hours of daily sunshine. Travel score: 72.1/100 (Good). The best time to visit Winterthur is August.
High
19°C66°F
Low
11°C52°F
🌧️
11
rain days
☀️
9.2
hrs/day sunshine
💧
79%
humidity
72— Good
September in Winterthur is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Winterthur?
How much does it rain in Winterthur in September?
Winterthur receives an average of 88.2mm of rainfall across 11 rainy days in September. The annual total is 1106.1mm.
What should I pack for Winterthur in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 19°C
Recommended
🧥
Light rain jacket
Some rainy days expected (11 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to Switzerland 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