The weather in Switzerland on saturday 20 September 2025
The average max temperature in Switzerland on 20 September is normally around 18°C. For comparison, the highest daytime temperature in the past 10 years was 25°C in 2018, while the lowest was 13°C in 2021.
There’s a decent chance of precipitation, as 5 of the past 10 years saw precipitation on this day, with an average of 5,3 mm.The wind often comes from the Southeast with a maximum speed of 3 Bft.The UV index can reach 7.
19 September
Temperature on 20 September in Switzerland per year
This chart shows the average temperature on 20 September in Switzerland, measured in degrees Celsius, over the past years.
Precipitation on 20 September in Switzerland over the past years
This chart shows the total measured precipitation in millimeters on 20 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
