Switzerland weather in September

Many people wonder what kind of weather they can expect in September in Switzerland. Is this month a good time to go to Switzerland? To answer that question we created this page with all the information you need.

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

Find the average weather conditions in September for the most popular destinations in Switzerland on the map below. Click on a destination dot for more detailed information.

Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inch a month).

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.

Zermatt
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
18°C / 64°F 
7°C / 44°F 
187 hours 
62mm / 2.4inch 
10 days 
16°C / 60°F 
4°C / 40°F 
166 hours 
42mm / 1.7inch 
7 days 
October   >> October
>>  
11°C / 53°F 
1°C / 34°F 
141 hours 
56mm / 2.2inch 
7 days 
Climate in Zermatt

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.

Grindelwald
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
24°C / 74°F 
14°C / 56°F 
195 hours 
144mm / 5.7inch 
13 days 
19°C / 67°F 
10°C / 50°F 
149 hours 
97mm / 3.8inch 
10 days 
October   >> October
>>  
14°C / 58°F 
6°C / 43°F 
103 hours 
78mm / 3.1inch 
9 days 
Climate in Grindelwald

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.

Nendaz
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
27°C / 80°F 
14°C / 57°F 
248 hours 
59mm / 2.3inch 
8 days 
22°C / 72°F 
11°C / 51°F 
210 hours 
40mm / 1.6inch 
6 days 
October   >> October
>>  
17°C / 63°F 
6°C / 43°F 
162 hours 
46mm / 1.8inch 
6 days 
Climate in Nendaz

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.

Zürich
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
24°C / 75°F 
14°C / 58°F 
215 hours 
120mm / 4.7inch 
12 days 
19°C / 66°F 
11°C / 51°F 
166 hours 
88mm / 3.5inch 
10 days 
October   >> October
>>  
14°C / 57°F 
7°C / 45°F 
110 hours 
87mm / 3.4inch 
10 days 
Climate in Zürich

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.

Davos
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
18°C / 65°F 
8°C / 46°F 
180 hours 
151mm / 5.9inch 
13 days 
14°C / 57°F 
4°C / 40°F 
162 hours 
97mm / 3.8inch 
10 days 
October   >> October
>>  
11°C / 52°F 
1°C / 34°F 
144 hours 
78mm / 3.1inch 
9 days 
Climate in Davos

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.

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  • 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.