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 2019

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

Partly Cloudy15%

Moderate rain at times12%

Fog11%

Weather at 1pm

Temperature: 18°C

Clear/SunnyClear/Sunny
56% of time

Moderate rain at times14%

Partly Cloudy14%

Moderate or heavy rain in area with thunder12%

Weather at 7pm

Temperature: 11°C

Clear/SunnyClear/Sunny
30% of time

Moderate rain at times26%

Fog19%

Partly Cloudy10%

Average weather 1-10 september

Weather at 7am

Temperature: 10°C

Clear/SunnyClear/Sunny
52% of time

Partly Cloudy20%

Fog12%

Moderate rain at times9%

Weather at 1pm

Temperature: 19°C

Clear/SunnyClear/Sunny
52% of time

Moderate rain at times17%

Partly Cloudy14%

Moderate or heavy rain in area with thunder12%

Weather at 7pm

Temperature: 11°C

Clear/SunnyClear/Sunny
32% of time

Moderate rain at times27%

Fog16%

Moderate or heavy rain in area with thunder11%

Average weather 11-20 september

Weather at 7am

Temperature: 8°C

Clear/SunnyClear/Sunny
45% of time

Moderate rain at times17%

Partly Cloudy15%

Heavy rain10%

Weather at 1pm

Temperature: 17°C

Clear/SunnyClear/Sunny
51% of time

Moderate rain at times17%

Partly Cloudy14%

Moderate or heavy rain in area with thunder13%

Weather at 7pm

Temperature: 10°C

Moderate rain at timesModerate rain at times
29% of time

Fog24%

Clear/Sunny23%

Partly Cloudy10%

Average weather 21-30 september

Weather at 7am

Temperature: 7°C

Clear/SunnyClear/Sunny
60% of time

Fog10%

Partly Cloudy10%

Moderate rain at times8%

Weather at 1pm

Temperature: 17°C

Clear/SunnyClear/Sunny
64% of time

Partly Cloudy13%

Moderate or heavy rain in area with thunder11%

Moderate rain at times8%

Weather at 7pm

Temperature: 11°C

Clear/SunnyClear/Sunny
35% of time

Moderate rain at times21%

Fog17%

Partly Cloudy12%



Climate of Sion in september

The climate of Sion in september is good

The weather in september in Sion is wet (with 109mm of rainfall over 14 days). It should be noted an improvement from the previous month since in august it receives an average of 167mm of precipitation over 17 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 9°C. Thus, the mean temperature average in september in Sion is 14°C. Note that these seasonal averages are in contrast with those observed in Sion in september with a maximum record of 31°C in 2016 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 07:08 and sets at 19:43.

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 14°C
Highest temperature 18°C
Lowest temperature 9°C
Highest record temperature 31°C
(2016)
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 9°C
Precipitation (rainfall)
Rainfall 109mm
Number of days with rainfall 14 day(s)
(46%)
Record daily rainfall 49.2mm
(2010)
Other climate data
Humidity 86%
Visibility 8.37km
Cloud cover 29%
Sunrise and sunset
Time of sunrise 07:08
Time of sunset 19:43
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 2018:

01-09-2018
Patchy light drizzle
6°C to 8°C
02-09-2018
Partly Cloudy
10°C to 16°C
03-09-2018
Partly Cloudy
12°C to 15°C
04-09-2018
Partly Cloudy
12°C to 17°C
05-09-2018
Partly Cloudy
14°C to 18°C
06-09-2018
Partly Cloudy
12°C to 18°C
07-09-2018
Patchy rain nearby
10°C to 14°C
08-09-2018
Partly Cloudy
15°C to 19°C
09-09-2018
Partly Cloudy
16°C to 20°C
10-09-2018
Partly Cloudy
15°C to 18°C
11-09-2018
Clear/Sunny
18°C to 22°C
12-09-2018
Partly Cloudy
17°C to 20°C
13-09-2018
Partly Cloudy
16°C to 19°C
14-09-2018
Partly Cloudy
13°C to 16°C
15-09-2018
Partly Cloudy
14°C to 18°C
16-09-2018
Partly Cloudy
16°C to 19°C
17-09-2018
Partly Cloudy
16°C to 21°C
18-09-2018
Partly Cloudy
16°C to 20°C
19-09-2018
Partly Cloudy
15°C to 19°C
20-09-2018
Partly Cloudy
17°C to 21°C
21-09-2018
Partly Cloudy
16°C to 19°C
22-09-2018
Partly Cloudy
12°C to 16°C
23-09-2018
Partly Cloudy
15°C to 19°C
24-09-2018
Partly Cloudy
7°C to 11°C
25-09-2018
Clear/Sunny
11°C to 15°C
26-09-2018
Partly Cloudy
12°C to 16°C
27-09-2018
Clear/Sunny
15°C to 19°C
28-09-2018
Clear/Sunny
13°C to 17°C
29-09-2018
Partly Cloudy
12°C to 18°C
30-09-2018
Partly Cloudy
9°C to 13°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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