Sion in may: average Weather, Temperature and Climate
Weather in Sion in may 2025
The weather in Sion in may comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout may
very bad weather 21.6cm
Weather at 6am
40°F
Moderate rain at times
28% of time
23%
21%
15%
Weather at 12pm
49°F
Moderate or heavy rain in area with thunder
34% of time
22%
19%
13%
Weather at 6pm
43°F
Moderate rain at times
32% of time
24%
23%
12%
Weather at 3am
34°F
34%
23%
15%
12%
Evolution of daily average temperature and precipitation in Sion in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Sion in may.
The climate of Sion in may is very bad
The weather in may in Sion is wet (with 17.4in of precipitation over 19 days). The weather is worst than the previous month since in april there is an average of 9.4in of precipitation over 13 days.
The climate is rather fresh around this city may, but it is bearable by dressing warm. The high seasonal norm is 49°F. On average, the recorded minimum temperature is 38°F. Thus, the mean temperature average in may in Sion is 43°F. Note that these seasonal averages are in contrast with those observed in Sion in may with a maximum record of 68°F in 2009 and a minimum record of 14°F in 2019. You can expect to have about 8 days with temperatures below 32°F, or 26% of the month.
In may in Sion, the days on average last 14:59. The sun rises at 04:58 and sets at 19:57.
May: another location in Switzerland?
If you want to go to Switzerland in may, there are destinations with better weather than Sion:
In may, Zurich, Basel, Bern, Lausanne, Lugano and Kloten have good weather.
Finally, Fribourg, Geneva, Lucerne, Aarau, Bellinzona and Locarno have a tolerable climate, but better than Sion.
Seasonal average climate and temperature of Sion in may
Check below seasonal norms These datas are compiled from the weather statements of the past years of the month of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 43°F | ||||
| Highest temperature | 49°F | ||||
| Lowest temperature | 38°F | ||||
| Highest record temperature | 68°F (2009) | ||||
| Lowest record temperature | 14°F (2019) | ||||
| Number of days at +65°F | 1 day(s) (3%) | ||||
| Number of days at -32°F | 8 day(s) (26%) | ||||
| Wind | |||||
| Wind speed | 10km/h | ||||
| Wind temperature | 36°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 17.4in | ||||
| Number of days with rainfall | 19 day(s) (62%) | ||||
| Record daily rainfall | 4.1in (2009) | ||||
| Snowfall | 21.6cm | ||||
| Other climate data | |||||
| Humidity | 90% | ||||
| Visibility | 7.76km | ||||
| Cloud cover | 53% | ||||
| UV index | 2 | ||||
| Daily sunshine hours | 13 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:58 | ||||
| Time of sunset | 19:57 | ||||
| Length of day | 14:59 | ||||
| Our opinion about the weather in may | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last may?
Here is the day by day recorded weather in Sion in may 2024:
40°F to 50°F
36°F to 40°F
31°F to 41°F
31°F to 43°F
38°F to 54°F
38°F to 45°F
34°F to 38°F
36°F to 41°F
32°F to 56°F
40°F to 59°F
43°F to 63°F
45°F to 61°F
45°F to 56°F
40°F to 58°F
41°F to 45°F
40°F to 49°F
34°F to 49°F
36°F to 54°F
38°F to 58°F
41°F to 59°F
38°F to 47°F
41°F to 50°F
41°F to 47°F
40°F to 52°F
40°F to 52°F
43°F to 59°F
47°F to 52°F
41°F to 54°F
43°F to 56°F
43°F to 54°F
36°F to 40°F
Map: other cities in Switzerland in may
Cities near Sion:
| Sierre in may | very bad weather |
| Martigny-Ville in may | very bad weather |
| Gstaad in may | tolerable weather |
| Monthey in may | tolerable weather |
| Zermatt in may | very bad weather |
| Morgins in may | tolerable weather |
| Visp in may | very bad weather |
| Montreux in may | tolerable weather |
| Gruyères in may | tolerable weather |
| Frutigen in may | very bad weather |
| Vevey in may | tolerable weather |
| Bulle in may | tolerable weather |
Click over cities on the map for information about the weather in may.
Sion
perfect weather
good
tolerable
bad
very bad
Weather data for Sion in may:
Weather data for Sion for may are derived from an average of the weather forecast since 2009 in Sion. There is a margin of error and these forecasts are to be considered as general information only. The weather in Sion can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Sion.