Rapperswil-Jona weather in September (Switzerland)

Can you expect sunny skies in Rapperswil-Jona in September? Find out what kind of weather to expect during this month.

Temperatures

Typically, September in Rapperswil-Jona includes pleasant temperatures and high rainfall. In the daytime, temperatures tend to hover near 18°C, cooling down at night to around 9°C.

Precipitation

Rapperswil-Jona in September usually receives high rainfall, averaging around 152 mm for the month. The climate data from previous years indicates that there are typically about 13 days days of rain.

Average sunshine

The area enjoys a balanced 166 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Rapperswil-Jona. May, June, July, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March, April, 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 Rapperswil-Jona climate page with graphs.

 

Rapperswil-Jona, monthly averages in September

Min Temperature 9°C  

Max Temperature 18°C  

Chance of Rain 44%  

Precipitation 152 mm  

Rainy days 13 days  

Humidity 78% *  

Sunshine 166 hours *  

Percentage Sunshine 48% *  

Data from: Zürich, Switzerland (25 KM, 15 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 Rapperswil-Jona, 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

Camping

3/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Rapperswil-Jona.

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.