Siviez weather in September (Canton of Valais, Switzerland)

Planning a trip to Siviez in September? This guide provides all the details you need.

In September, Siviez generally has moderate temperatures and high rainfall. Anticipate daytime temperatures around 14°C, while night temperatures can drop to 3°C.

Siviez in September usually receives high rainfall, averaging around 120 mm for the month. Rain is expected on roughly 14 days.

With around 210 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If your ideal day consists of dry skies and moderate temperatures July and August generally stand out with 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 Siviez climate page with graphs.

 

Siviez, monthly averages in September

Min Temperature 3°C  

Max Temperature 14°C  

Chance of Rain 47%  

Precipitation 120 mm  

Rainy days 14 days  

Humidity 71% *  

Windspeed 7 km/h *  

Sunshine 210 hours *  

Percentage Sunshine 65% *  

* Data from: Sion, Switzerland (9 KM, 5 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 Siviez in September?

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 in September.

Swimming

4/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Interested in more climate information?

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

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.