Average monthly snow and rainfall in Sion (Canton of Valais) in millimeter

This is the mean monthly precipitation over the year, including rain, snow, hail etc.
Show average precipitation in Sion in Inches »

Average precipitation (rain/snow) in Sion, Switzerland   Copyright © 2021  weather-and-climate.com
  • On average, August is the wettest month with 63.0 mm (2.48 inch) of precipitation.
  • On average, April is the driest month with 36.0 mm (1.42 inch) of precipitation.
  • The average amount of annual precipitation is: 575.0 mm (22.64 inch)

Weather Forecasts for Sion (Canton of Valais)

TUE Dec 07
-2°C | -8°C

Heavy snow

WED Dec 08
-5°C | -8°C

Heavy snow

THU Dec 09
-6°C | -17°C

Heavy snow

Where to stay in Sion

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 almost all countries 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 suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.