Average monthly rainy days in Sion

The number of days each month with rain, snow and hail in Sion (Canton of Valais), Switzerland.

Most rainy days are in January, March, April, May, June, July and August.
On average, May is the most rainy with 19 days of rain/snow.
On average, October is the driest month with 13 rainy days.
The average annual number of rainy days is 190.

Weather Forecasts for Sion

Fri Apr 26

16°C | 3°C

22 km/h

0.7 mm

broken clouds and slight rain

hourly forecast

Sat Apr 27

18°C | 0°C

25 km/h

broken clouds and no rain

hourly forecast

Sun Apr 28

18°C | 8°C

14 km/h

0.5 mm

overcast and slight rain

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

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

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.

Travel Inspiration

The 5 most scenic train journeys in Switzerland

Explore Switzerland's top 5 train journeys, featuring breathtaking Alpine views and engineering marvels like the Glacier Express and Bernina Express.

The Verzasca Valley

You can visit the Verzasca Valley in any season. It's an amazing place for swimming and it is a paradise for hikers. A must see for the bucket list.

Balloon at Chateau D'oex

If you are looking for a special place to visit in Europe in January we recommend visiting the annual balloon festival in Château-d'Oex, Switzerland.

You'll love this Mountain roller coaster

Hotel Oeschinensee’s mountain coaster is a summer toboggan that you want to add to your bucket list. You'll get in your cart, sit down and fly across the track while enjoying the beautiful mountain scenery around you.