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Switzerland weather in September 2025
Expect 18°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Switzerland in September. Check more long-term weather averages for Switzerland in September before you book your next holiday to Switzerland in 2025/2026.
- 1818°C max day temperature
- 6 hours of sunshine per day
- 1313 days with some rainfall
- 99°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 8080 mm of monthly rainfall
- 55 (Moderate) UV index
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Recommended for Switzerland
The September weather guide for Switzerland (Bern) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Switzerland destinations
Below are average maximum temperatures at popular countries, regions and places in Switzerland in September. Select a holiday destination to see more weather parameters.
All Switzerland regions
All Switzerland destinations
- Basel
- Bern
- Geneva
- Interlaken
- Lausanne
- Locarno
- Lugano
- Luzern
- Montreux
- Neuchatel
- St Gallen
- St Moritz
- Zermatt
- Zurich
Metric (°C / mm) | Imperial (°F / inches)
More about Switzerland
How hot is it in Switzerland in September?
Daytime temperatures usually reach 18°C in Bern, Switzerland in September, falling to 9°C at night.
How sunny is it in Switzerland in September?
There are normally 6 hours of bright sunshine each day in Bern, Switzerland in September - that's 45% of daylight hours.
Does it rain in Switzerland in September?
There are usually 13 days with some rain in Bern, Switzerland in September and the average monthly rainfall is 80mm.
Switzerland September sunrise & sunset times
Browse the sunrise and sunset times for Switzerland in September 2025. Select a month to view Switzerland sunrise and sunset times for the next 12 months. The Switzerland sunrise and sunset times shown below are for Bern.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:50 | 19:10 |
Monday, 15th September 2025 | 06:08 | 18:42 |
Tuesday, 30th September 2025 | 06:28 | 18:12 |
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