Switzerland weather in September
What is the weather like in Switzerland in September?
The weather conditions in Switzerland in September range from unpleasant to perfect depending on the destination.
During September in Switzerland, the average maximum temperature ranges from low in Säntis (the highest mountain in the Alpstein massif) with 6°C (43°F) to high in Sion with 22°C (72°F). Minimum nighttime temperatures generally drop to 11°C (51°F) in Sion and 1°C (34°F) in Säntis (the highest mountain in the Alpstein massif).
Precipitation in September ranges from moderate in Sion with an average of 40mm (1.6inch) rainfall to heavy in Säntis (the highest mountain in the Alpstein massif) with 213mm (8.4inch).
It is the driest month of the year in Zermatt.
It is also generally a
moderately sunny
period with an average of 166 hours of sunshine in Zermatt during the entire month.
We invite you to have a look at the map below to find out more about the different weather conditions per location in Switzerland.
Where to go in Switzerland in September
perfect weather
pleasant
tolerable
unpleasant
poor
Popular destinations in Switzerland
What is the weather like in September for the 5 most popular destinations in Switzerland?
Average weather in Zermatt
In September Zermatt generally has moderate temperatures with maximum daytime temperatures around 16°C (60°F), minimum nighttime temperatures around 4°C (40°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Grindelwald
In September Grindelwald generally has pleasant temperatures with maximum daytime temperatures around 19°C (67°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Nendaz
In September Nendaz generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 11°C (51°F) and moderate monthly rainfall. So on average the conditions are perfect that month.
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Average weather in Zürich
In September Zürich generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 11°C (51°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Davos
In September Davos generally has moderate temperatures with maximum daytime temperatures around 14°C (57°F), minimum nighttime temperatures around 4°C (40°F) and high monthly rainfall. So on average the conditions are tolerable that month.
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Is your destination not in the list? Have a look at other destinations in Switzerland.
Is September the best time to go to Switzerland?
In our opinion September is a good time to visit Switzerland with commonly tolerable weather in Zermatt. However, the weather conditions may vary depending on your destination.
On average the best time to visit Switzerland is in July and August with generally pleasant weather in Zermatt.
The worst months are January, February, March, April, November and December that can have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Switzerland.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for almost all countries in the world. Are you going to Switzerland? Get detailed historical weather averages for many cities in Switzerland.
Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.
