Sion Weather in May
What's the weather like in Sion (Valais) in May 2024?
The climate in Sion during May can be summarized as cool and damp.
May is in the spring in Sion and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 4°C (39°F) is normal.
| Daytime temperature | 12°C 53.5°F |
|---|---|
| Nightly temperature | 3.9°C 38.9°F |
| Average temperature | 7.9°C 46.2°F |
| Daily sunshine | 5.9 hrs |
| Avg rainfall | 105 mm 4.1 ins |
| Rainy days | 19 days |
| Sea temperature | 15.9°C 60.6°F |
| Humidity | 76% |
| Windspeed | 10.4kph 7 mph |
On average May is the 3rd wettest month of the year in Sion with around 105mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
May temperatures in Sion
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sion in May 2024.
Other monthly averages
Sion weather stats
| Hottest month: | July | 18.4°C 65.1°F |
|---|---|---|
| Driest month: | March | 78mm 3.1ins |
| Sunniest month: | July | 7.9hrs |
| Coldest month: | January | -0.5°C 31.1°F |
| Wettest month: | August | 128mm 5ins |
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