Sarnen weather in September (Obwalden, Switzerland)

Curious about the September weather in Sarnen? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In September, Sarnen generally has moderate temperatures and heavy rainfall. Throughout the daytime, temperatures often hover around 16°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 8°C.

Sarnen in September falls under the rainy season with heavy rainfall, averaging around 178 mm for the month. When we look at the climate data from the last 30 years, we can expect around 14 days of rain.

The city usually sees around 138 hours of sunlight, indicating a moderately sunny period.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Sarnen. July, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March, April, May, June, October, November and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Sarnen climate page with graphs.

 

Sarnen, monthly averages in September

Min Temperature 8°C  

Max Temperature 16°C  

Chance of Rain 47%  

Precipitation 178 mm  

Rainy days 14 days  

Humidity 78% *  

Sunshine 138 hours *  

Percentage Sunshine 52% *  

* Data from: Altdorf, Switzerland (29 KM, 18 Miles).

Where to go in Switzerland in September

Find out more about the weather in Switzerland in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Sarnen in September?

For visitors traveling to Sarnen, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Sarnen.

Our site offers climate and forecast data for every country in the world. Are you going to Switzerland? On this website you can find historical weather averages for many cities in Switzerland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.