Sion Weather Conditions
Current Temperature Level
26 °C
17 AQI
Air quality index is: Good
Last Updated: 2025-08-31 16:00 (Local Time)
MapSion
Sion Weather Parameters
4 km/h
1 m/s
296° WNW
0 %
10 km
0 mm
1011 mb
UV Index4
Suggestions for
TodaySion31 Aug.
Umbrella• Not required
Clothing• More Layered
Driving• Enjoy Driving
Sunscreen• ApplyTrending in Switzerland
Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025
Sion 10-Days Weather Forecast
Today
11°C
64 %Monday
8°C94 %Tuesday
7°C90 %Wednesday
9°C72 %Thursday
14°C59 %Friday
11°C90 %Saturday
12°C73 %Sunday
14°C66 %Monday
15°C62 %Tuesday
13°C73 %Sunny
Clear Sky with temperature at 11 °C and humidity will be at 64% with 9 km/h winds.19°C / 5°C
Humi.64 %
Prec.0 mm
Sunrise
06:50 AM13hrs 21min
Sunset
08:11 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Partly Cloudy
5 °C
90 %
0
2.9 kmph / SSE
Partly Cloudy 
Feels 5 °C
Cover 29 %
Visibility 10 km
1 AM
Clear
5 °C
88 %
0
4 kmph / E
Clear Feels 4.5 °C
Cover 18 %
Visibility 10 km
2 AM
Clear
5 °C
87 %
0
3.2 kmph / E
Clear Feels 4.6 °C
Cover 14 %
Visibility 10 km
3 AM
Clear
5 °C
87 %
0
3.6 kmph / ESE
Clear Feels 4.3 °C
Cover 11 %
Visibility 10 km
4 AM
Clear
5 °C
83 %
0
4.3 kmph / E
Clear Feels 4 °C
Cover 8 %
Visibility 10 km
5 AM
Clear
5 °C
81 %
0
4.7 kmph / E
Clear Feels 3.7 °C
Cover 6 %
Visibility 10 km
6 AM
Clear
5 °C
79 %
0
5 kmph / E
Clear Feels 3.6 °C
Cover 5 %
Visibility 10 km
7 AM
Sunny
7 °C
75 %
0
4.7 kmph / E
SunnyFeels 6.2 °C
Cover 6 %
Visibility 10 km
8 AM
Sunny
10 °C
63 %
0.3
3.6 kmph / ENE
SunnyFeels 9.8 °C
Cover 8 %
Visibility 10 km
9 AM
Sunny
12 °C
52 %
1.1
2.5 kmph / NE
SunnyFeels 12.2 °C
Cover 8 %
Visibility 10 km
10 AM
Sunny
15 °C
42 %
2.6
1.1 kmph / N
SunnyFeels 14.5 °C
Cover 9 %
Visibility 10 km
11 AM
Sunny
16 °C
36 %
4.4
2.2 kmph / WNW
SunnyFeels 16.3 °C
Cover 10 %
Visibility 10 km
12 PM
Sunny
18 °C
33 %
6.1
1.1 kmph / NW
SunnyFeels 17.6 °C
Cover 16 %
Visibility 10 km
1 PM
Sunny
19 °C
32 %
7
2.2 kmph / NW
SunnyFeels 18.6 °C
Cover 10 %
Visibility 10 km
2 PM
Sunny
19 °C
33 %
6.7
3.6 kmph / WNW
SunnyFeels 19.2 °C
Cover 6 %
Visibility 10 km
3 PM
Sunny
19 °C
34 %
4.9
3.6 kmph / WNW
SunnyFeels 19.4 °C
Cover 5 %
Visibility 10 km
4 PM
Sunny
26 °C
37 %
4.2
3.6 kmph / WNW
SunnyFeels 19.2 °C
Cover 0 %
Visibility 10 km
5 PM
Sunny
19 °C
42 %
2.6
1.1 kmph / NNE
SunnyFeels 18.6 °C
Cover 7 %
Visibility 10 km
6 PM
Sunny
16 °C
62 %
1.2
1.4 kmph / NE
SunnyFeels 16.3 °C
Cover 6 %
Visibility 10 km
7 PM
Sunny
12 °C
74 %
0.3
6.5 kmph / ESE
SunnyFeels 12.1 °C
Cover 8 %
Visibility 10 km
8 PM
Sunny
11 °C
79 %
0
9 kmph / ESE
SunnyFeels 9.9 °C
Cover 11 %
Visibility 10 km
9 PM
Clear
11 °C
80 %
0
8.6 kmph / ESE
Clear Feels 9.5 °C
Cover 9 %
Visibility 10 km
10 PM
Clear
10 °C
82 %
0
9 kmph / ESE
Clear Feels 8.5 °C
Cover 12 %
Visibility 10 km
11 PM
Clear
9 °C
82 %
0
7.9 kmph / ESE
Clear Feels 8 °C
Cover 17 %
Visibility 10 km
Today
11°C64 %Monday
8°C94 %Tuesday
7°C90 %Wednesday
9°C72 %Thursday
14°C59 %Friday
11°C90 %Saturday
12°C73 %Sunday
14°C66 %Monday
15°C62 %Tuesday
13°C73 %Temp19 °C
ConditionSunny
Humidity42 %
Feels18.6 °C
Cover7 %
Visibility10 km
Wind Speed & Dir.1.1 kmph / NNE
UV2.6
Sion 30-Days (August 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Fri.
16°6 °C
2Sat.
14°5 °C
3Sun.
16°4 °C
4Mon.
20°5 °C
5Tue.
21°10 °C
6Wed.
21°9 °C
7Thu.
23°9 °C
8Fri.
25°11 °C
9Sat.
26°13 °C
10Sun.
26°14 °C
11Mon.
27°14 °C
12Tue.
27°14 °C
13Wed.
28°14 °C
14Thu.
25°12 °C
15Fri.
24°11 °C
16Sat.
23°11 °C
17Sun.
22°10 °C
18Mon.
23°10 °C
19Tue.
23°11 °C
20Wed.
15°9 °C
21Thu.
13°6 °C
22Fri.
14°7 °C
23Sat.
17°7 °C
24Sun.
18°5 °C
25Mon.
20°6 °C
26Tue.
21°8 °C
27Wed.
22°11 °C
28Thu.
12°9 °C
29Fri.
15°5 °C
30Sat.
13°5 °C
31Today
19°5 °C
AugustWeather Overview
No. of days:
Sunny
7
Cloudy
2
Rainy
22
Snowy
0
The monthly weather averages in Sion consist of 7 sunny days, 2 cloudy days, 22 rainy days, and 0 snowy days.
Sion's Locations Weather Conditions
Switzerland's Hottest Cities - August 2025
1.
Sion, Switzerland
Sunny
37%
4.2
3.6 kmph / WNW
2.
Lugano, Switzerland
Sunny
42%
4.1
7.6 kmph / SSW
3.
Bellinzona, Switzerland
Sunny
42%
4.2
8.6 kmph / S
4.
Binningen, Switzerland
Sunny
48%
3.9
4.3 kmph / ENE
5.
Riehen, Switzerland
Sunny
48%
3.9
4.3 kmph / ENE
6.
Frauenfeld, Switzerland
Sunny
47%
3.5
6.8 kmph / NE
7.
Dubendorf, Switzerland
Sunny
47%
3.6
4 kmph / NNE
8.
Bassersdorf, Switzerland
Sunny
47%
3.5
6.8 kmph / NE
9.
Zurich, Switzerland
Sunny
47%
3.6
4 kmph / NNE
10.
Opfikon, Switzerland
Sunny
47%
3.7
4.3 kmph / NE
Last Updated: 31 Aug 2025, 02:32 PM
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