The weather in Sion in June is very cold with temperatures between 2°C and 16°C, warm clothes are a must.
There’s going to be many days of rain during the month of June in Sion.
Sion should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Please note that Sion can expect a few days of snow in June.
Our weather forecast can give you a great sense of what weather to expect in Sion in June 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
16° / 2°
Rainy Days
18
Snowy Days
1
Dry Days
11
Rainfall
241
mm
Sun Hours
10.2
Hrs
