Sion in september: average weather and climate

You plan to go to Sion in Switzerland in september : check the weather and seasonal norms on this page.

Best time to go to Sion?

Weather in Sion in september 2018

The weather in Sion in september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by using the tabs for the beginning, the middle and the end of the month.

Average weather throughout september

Weather at 7am

Temperature: 8°C

Clear/SunnyClear/Sunny
53% of time

Moderate rain at times13%

Fog12%

Partly Cloudy10%

Weather at 1pm

Temperature: 18°C

Clear/SunnyClear/Sunny
58% of time

Moderate rain at times17%

Moderate or heavy rain in area with thunder17%

Heavy rain5%

Weather at 7pm

Temperature: 9°C

Clear/SunnyClear/Sunny
28% of time

Moderate rain at times26%

Fog24%

Moderate or heavy rain in area with thunder10%

Average weather 1-10 september

Weather at 7am

Temperature: 9°C

Clear/SunnyClear/Sunny
56% of time

Partly Cloudy16%

Fog13%

Moderate rain at times10%

Weather at 1pm

Temperature: 19°C

Clear/SunnyClear/Sunny
58% of time

Moderate rain at times20%

Moderate or heavy rain in area with thunder18%

Heavy rain5%

Weather at 7pm

Temperature: 10°C

Clear/SunnyClear/Sunny
30% of time

Moderate rain at times29%

Fog20%

Moderate or heavy rain in area with thunder13%

Average weather 11-20 september

Weather at 7am

Temperature: 8°C

Clear/SunnyClear/Sunny
46% of time

Moderate rain at times18%

Heavy rain13%

Fog12%

Weather at 1pm

Temperature: 17°C

Clear/SunnyClear/Sunny
53% of time

Moderate rain at times19%

Moderate or heavy rain in area with thunder18%

Heavy rain6%

Weather at 7pm

Temperature: 8°C

FogFog
32% of time

Clear/Sunny23%

Moderate rain at times23%

Moderate or heavy rain in area with thunder9%

Average weather 21-30 september

Weather at 7am

Temperature: 9°C

Clear/SunnyClear/Sunny
56% of time

Fog12%

Moderate rain at times10%

Partly Cloudy8%

Weather at 1pm

Temperature: 19°C

Clear/SunnyClear/Sunny
62% of time

Moderate or heavy rain in area with thunder16%

Moderate rain at times12%

Partly Cloudy8%

Weather at 7pm

Temperature: 10°C

Clear/SunnyClear/Sunny
30% of time

Moderate rain at times26%

Fog20%

Moderate or heavy rain in area with thunder9%



Climate of Sion in september

The climate of Sion in september is good

The weather in september in Sion is wet (with 130mm of rainfall over 15 days). It should be noted an improvement from the previous month since in august it receives an average of 178mm of precipitation over 18 days.

The climate is fairly fresh in that locality the month of september, but it is livable by dressing hot. The high seasonal norm is 18°C. The minimum is 8°C. Thus, the mean temperature average in september in Sion is 13°C. Note that these seasonal averages are in contrast with those observed in Sion in september with a maximum record of 28°C in 2013 and a minimum record of -3°C in 2010. You can hope to have about 13 days with temperatures over 18°C, or 43% of the month.

On average, in Sion, the days of september last 12:35. The sun rises at 06:08 and sets at 18:43.

With a good weather, september is recommended to go there.


Seasonal average climate and temperature of Sion in september

Check below seasonal norms These statistics are generated from the weather statements of the past years of the month of september.

September
Outside temperature
Average temperature 13°C
Highest temperature 18°C
Lowest temperature 8°C
Highest record temperature 28°C
(2013)
Lowest record temperature -3°C
(2010)
Number of days at +30°C 0 day(s)
(0%)
Number of days at +18°C 13 day(s)
(43%)
Number of days at -0°C 1 day(s)
(3%)
Wind
Wind speed 10km/h
Wind temperature 7°C
Precipitation (rainfall)
Rainfall 130mm
Number of days with rainfall 15 day(s)
(49%)
Record daily rainfall 49.2mm
(2010)
Other climate data
Humidity 88%
Visibility 7.99km
Cloud cover 33%
Sunrise and sunset
Time of sunrise 06:08
Time of sunset 18:43
Length of day 12:35
Our opinion about the weather in september
Our opinion at whereandwhen.net good

How was the weather last september?

Here is the day by day recorded weather in Sion in september 2017:

01-09-2017
Patchy light drizzle
7°C to 10°C
02-09-2017
Patchy light rain
4°C to 6°C
03-09-2017
Clear/Sunny
7°C to 12°C
04-09-2017
Partly Cloudy
11°C to 14°C
05-09-2017
Clear/Sunny
14°C to 19°C
06-09-2017
Partly Cloudy
10°C to 14°C
07-09-2017
Clear/Sunny
9°C to 13°C
08-09-2017
Clear/Sunny
12°C to 17°C
09-09-2017
Partly Cloudy
7°C to 12°C
10-09-2017
Partly Cloudy
5°C to 9°C
11-09-2017
Clear/Sunny
7°C to 12°C
12-09-2017
Clear/Sunny
5°C to 8°C
13-09-2017
Partly Cloudy
10°C to 11°C
14-09-2017
Patchy light rain
3°C to 9°C
15-09-2017
Clear/Sunny
5°C to 10°C
16-09-2017
Clear/Sunny
5°C to 8°C
17-09-2017
Clear/Sunny
5°C to 8°C
18-09-2017
Clear/Sunny
4°C to 7°C
19-09-2017
Partly Cloudy
2°C to 4°C
20-09-2017
Clear/Sunny
4°C to 9°C
21-09-2017
Clear/Sunny
10°C to 14°C
22-09-2017
Clear/Sunny
11°C to 14°C
23-09-2017
Clear/Sunny
10°C to 14°C
24-09-2017
Clear/Sunny
9°C to 13°C
25-09-2017
Clear/Sunny
10°C to 14°C
26-09-2017
Clear/Sunny
10°C to 13°C
27-09-2017
Clear/Sunny
11°C to 15°C
28-09-2017
Clear/Sunny
12°C to 17°C
29-09-2017
Clear/Sunny
12°C to 16°C
30-09-2017
Clear/Sunny
10°C to 16°C

See more


Map: other cities in Switzerland in september

Click over cities on the map for information about the weather in september.

perfect weather good tolerable bad very bad current location

Cities near Sion:

Sierre in septembertolerable weather
Martigny-Ville in septembertolerable weather
Gstaad in septembertolerable weather
Monthey in septembertolerable weather
Zermatt in septembervery bad weather
Visp in septemberbad weather

Switzerland in september: See full list of cities


Weather data for Sion in september:

Weather data for Sion for september 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.

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