Sion weather in May (Canton of Valais, Switzerland)
Wondering what the weather is like in Sion during May? See what weather conditions to anticipate this month with our guide.
Temperatures
During May, Sion usually has moderate temperatures and heavy rainfall. Monthly maximum daytime temperatures generally peak at 12°C, but after sunset, they often decrease to around 2°C.
Precipitation
Sion in May usually receives heavy rainfall, averaging around 163 mm for the month. Typically, about 19 days will experience rainfall.
Average sunshine
The month enjoys around 230 hours of sunshine, creating mostly sunny days with good weather conditions.
Average windspeed
May sees wind speeds averaging 2 m/s. You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.May in Sion can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Sion's climate page.
Sion, monthly averages in May
Min Temperature
2°C
Max Temperature
12°C
Chance of Rain
65%
Precipitation
163 mm
Rainy days
19 days
Humidity
62%
Windspeed
2 m/s
Sunshine
230 hours
Percentage Sunshine
56%
Where to go in Switzerland in May
Find out more about the weather in Switzerland and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Sion's climate page.
So, what should you wear in this month?
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.
Interested in more climate information?
This site 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 travel conditions. Find out where to go with our weather planner.
