Weather in Olten in september 2025

The weather in Olten in september comes from statistical datas on the last 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

good weather

Weather at 6am
50°F

Fog

25%

Moderate rain at times

19%

Partly Cloudy

14%

Weather at 12pm
68°F

Moderate rain at times

26%

Partly Cloudy

21%

Heavy rain

5%

Weather at 6pm
56°F

Moderate rain at times

31%

Partly Cloudy

17%

Heavy rain

8%

Weather at 3am
49°F

Fog

33%

Clear/Sunny

32%

Moderate rain at times

21%

Partly Cloudy

9%



Evolution of daily average temperature and precipitation in Olten in september

These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Olten in september.


The climate of Olten in september is good

the weather in Olten in september is wet (with 4.3in of rainfall over 7 days). The weather is better from the previous month since in august it receives an average of 7.1in of precipitation over 11 days.

The climate enjoyable around this city this month. The thermometer averaged maximum of 70°F. The minimum is 50°F. Thus, the mean temperature average in september in Olten is 59°F. These temperatures are far removed from those records observed in Olten in the month of september with a maximum record of 86°F in 2009 and a minimum record of 34°F in 2010. You can hope to have about 22 days with temperatures up to 65°F, or 73% of time.

On this month of september, day length in Olten is generally 12:34. The sun rises at 06:06 and sunset is at 18:40.

With a good climate, the month of september is a good time to go in Olten in Switzerland.



Seasonal average climate and temperature of Olten in september

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

September
Outside temperature
Average temperature 59°F
Highest temperature 70°F
Lowest temperature 50°F
Highest record temperature 86°F
(2009)
Lowest record temperature 34°F
(2010)
Number of days at +86°F 0 day(s)
(0%)
Number of days at +65°F 22 day(s)
(73%)
Number of days at -32°F 0 day(s)
(0%)
Wind
Wind speed 10km/h
Wind temperature 49°F
Precipitation (rainfall)
Rainfall 4.3in
Number of days with rainfall 7 day(s)
(22%)
Record daily rainfall 1.9in
(2016)
Snowfall 0cm
Other climate data
Humidity 91%
Visibility 8.32km
Cloud cover 34%
UV index 5
Daily sunshine hours 12
Sunrise and sunset
Time of sunrise 06:06
Time of sunset 18:40
Length of day 12:34
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 Olten in september 2024:

01-09-2024
Clear/Sunny
61°F to 86°F
02-09-2024
Partly Cloudy
58°F to 81°F
03-09-2024
Patchy rain nearby
59°F to 81°F
04-09-2024
Patchy rain nearby
61°F to 74°F
05-09-2024
Patchy rain nearby
59°F to 72°F
06-09-2024
Partly Cloudy
52°F to 76°F
07-09-2024
Clear/Sunny
52°F to 81°F
08-09-2024
Patchy rain nearby
59°F to 74°F
09-09-2024
Light rain
52°F to 58°F
10-09-2024
Clear/Sunny
49°F to 68°F
11-09-2024
Light drizzle
47°F to 59°F
12-09-2024
Patchy rain nearby
45°F to 58°F
13-09-2024
Light rain shower
38°F to 50°F
14-09-2024
Light rain shower
41°F to 52°F
15-09-2024
Clear/Sunny
34°F to 61°F
16-09-2024
Partly Cloudy
38°F to 59°F
17-09-2024
Fog
45°F to 56°F
18-09-2024
Partly Cloudy
41°F to 63°F
19-09-2024
Patchy rain nearby
52°F to 61°F
20-09-2024
Clear/Sunny
47°F to 72°F
21-09-2024
Clear/Sunny
49°F to 70°F
22-09-2024
Partly Cloudy
49°F to 72°F
23-09-2024
Light drizzle
52°F to 58°F
24-09-2024
Patchy rain nearby
45°F to 67°F
25-09-2024
Clear/Sunny
45°F to 63°F
26-09-2024
Moderate rain
52°F to 56°F
27-09-2024
Partly Cloudy
50°F to 61°F
28-09-2024
Light rain shower
45°F to 49°F
29-09-2024
Partly Cloudy
38°F to 58°F
30-09-2024
Patchy rain nearby
45°F to 67°F

Map: other cities in Switzerland in september

Cities near Olten:

Aarau in septembergood weather
Regionaler Naturpark Thal in septembergood weather
Langenthal in septembergood weather
Wohlen in septembergood weather
Basel in septembergood weather
Burgdorf in septembertolerable weather
Entlebuch in septembergood weather
Grenchen in septembergood weather
Delémont in septembergood weather
Lucerne in septembergood weather
Zurich in septembergood weather
Zug in septembergood weather
Switzerland in september: See full list of cities

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

Legend: Olten perfect weather good tolerable bad very bad


Weather data for Olten in september:

Weather data for Olten for september are derived from an average of the weather forecast since 2009 in Olten. There is a margin of error and these forecasts are to be considered as general information only. The weather in Olten 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 Olten.


Weather in august in Olten
Weather in october in Olten
Change units