Olten weather in September (Canton of Solothurn, Switzerland)

What is the weather forecast for Olten in September? Find all the essential weather information for this month in our guide.

Temperatures

Typically, September in Olten includes pleasant temperatures and high rainfall. You can expect daytime temperatures to reach around 20°C, while the nights will see a decline to about 10°C.

Precipitation

Olten in September usually receives high rainfall, averaging around 117 mm for the month. On average, there are about 13 days with rain during this month.

Average sunshine

The area enjoys a moderate level of sunlight, with around 162 hours. It's a good balance between sunny and cloudy days.

So this is a great month to visit if you prefer dry days with pleasant temperatures. June, July, August and September typically offer the most optimal weather. In contrast, January, February, November and December tend to have less optimal conditions.

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

 

Olten, monthly averages in September

Min Temperature 10°C  

Max Temperature 20°C  

Chance of Rain 43%  

Precipitation 117 mm  

Rainy days 13 days  

Humidity 77% *  

Sunshine 162 hours *  

Percentage Sunshine 47% *  

Data from: Basel, Switzerland (33 KM, 20 Miles).

Where to go in Switzerland in September

Find out more about the weather in Switzerland and which places have the best travel 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 this month?

For visitors traveling to Olten, 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.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Olten.

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 travel conditions. Find out where to go with our weather planner.