Weather in October 2025

Sion weather in October 2025

The weather in Sion in October is very cold with temperatures between -2°C and 10°C, warm clothes are a must.

You can expect rain for roughly half of the month of October in Sion. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

You can expect a few days of snow in Sion during October. It’s important to get out your snow boots and warm mittens to stay warm while you explore Sion.

Our weather forecast can give you a great sense of what weather to expect in Sion in October 2025.

If you’re planning to visit Sion in the near future, we highly recommend that you review the 14 day weather forecast for Sion before you arrive.

Temperatures
Temperatures
10° / -2°
Rainy Days
Rainy Days
8
Snowy Days
Snowy Days
6
Dry Days
Dry Days
18
Rainfall
Rainfall
115
mm
10.2
Sun Hours
10.2
Hrs

Sion annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January -1° / -14° 5 6 21 206 mm
Awful
February 0° / -13° 5 5 20 149 mm
Awful
March 2° / -10° 8 5 20 166 mm
Awful
April 6° / -5° 12 7 12 158 mm
Awful
May 10° / -1° 20 5 7 298 mm
Awful
June 16° / 2° 18 11 1 241 mm
Ok
July 18° / 4° 16 15 0 230 mm
Ok
August 18° / 4° 14 17 0 207 mm
Ok
September 15° / 2° 11 17 2 132 mm
Bad
October 10° / -2° 8 18 6 115 mm
Awful
November 4° / -7° 7 10 13 157 mm
Awful
December -1° / -12° 7 7 18 190 mm
Awful
Temperatures in Sion in October
Rain in Sion in October

Recommended Hotels in Sion

We know that finding the ideal hotel in Sion can be a hard task...

That’s why we run our special tools and found the best hotels in Sion. Click on hotel for more details.

Weather in Sion in October - FAQ

What is the average temperature in Sion in October?
The average temperature in Sion in October is -2/10° C.
What is the chance of rain in Sion in October?
On average, there are 8 rainy days in Sion during October.
Weather wise, is October a good time to visit Sion?
The weather in Sion in October is awful.
Can it snow in Sion in October?
On average, there are 6 snowy days in Sion in October.
More about the weather in Sion