Sierre weather in September (Canton of Valais, Switzerland)

What's the typical weather in Sierre for September? Check out our in-depth weather guide for this month.

Temperatures

The month of September in Sierre typically includes moderate temperatures and high rainfall. Anticipate daytime temperatures around 14°C, while night temperatures can drop to 3°C.

Precipitation

Sierre in September usually receives high rainfall, averaging around 121 mm for the month. On average, there are about 14 days with rain during this month.

Average sunshine

The days are predominantly sunny, with an estimated total of around 210 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. While January, February, March, April, May, October, November and December tend to showcase less optimal conditions.

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

 

Sierre, monthly averages in September

Min Temperature 3°C  

Max Temperature 14°C  

Chance of Rain 47%  

Precipitation 121 mm  

Rainy days 14 days  

Humidity 71% *  

Windspeed 7 km/h *  

Sunshine 210 hours *  

Percentage Sunshine 65% *  

Data from: Sion, Switzerland (17 KM, 10 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?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

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

Swimming

4/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Interested in more climate information?

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

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.