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The weather in Switzerland on wednesday 17 September 2025

The average max temperature in Switzerland on 17 September is normally around 19°C. For comparison: the highest daytime temperature in the past 10 years was 27°C in 2018, while the lowest was 12°C in 2017.

There’s a fair chance of precipitation, as 5 out of the last 10 years had some, with an average of 9,4 mm on this day. The wind often comes from the South with a maximum strength of 3 Bft.The UV index can reach 6.

Sunrise: 07:06 o'clock
Sunset: 19:36 o'clock
Total Daylight: 12 hrs 30 mins

Check out the weather for Switzerland

Temperature on 17 September in Switzerland per year

This chart shows the average temperature on 17 September in Switzerland, measured in degrees Celsius, over the past years.

Temperature on 17 September in Switzerland over the past years

Precipitation on 17 September in Switzerland over the past years

This chart shows the total measured precipitation in millimetres on 17 September in Switzerland over the past years.

Precipitation on 17 September in Switzerland over the past years

Average Weather in Switzerland by Month

Click on a month below to see detailed weather info for Switzerland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Switzerland for all months at once

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