St. Gallen weather in September (St.Gallen Canton, Switzerland)

How does the September weather in St. Gallen compare to other months? Want to know if it's a good time to visit? This page has all the weather details for the month.

Temperatures

In September, St. Gallen usually has pleasant temperatures and high rainfall. Expect the temperatures during the day to hover around 19°C. At night, they will likely drop to about 10°C.

Precipitation

St. Gallen in September usually receives high rainfall, averaging around 145 mm for the month. Typically around 13 days days of rainfall are expected.

Average sunshine

The month experiences a moderate amount of sunlight, with 155 hours hours. A nice balance between sunshine and clouds.

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

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

 

St. Gallen, monthly averages in September

Min Temperature 10°C  

Max Temperature 19°C  

Chance of Rain 43%  

Precipitation 145 mm  

Rainy days 13 days  

Humidity 78%  

Sunshine 155 hours  

Percentage Sunshine 44%  

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 St. Gallen, 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 St. Gallen.

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.