Olten in september: average Weather, Temperature and Climate
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
Clear/Sunny
34% of time
25%
19%
14%
Weather at 12pm
68°F
Clear/Sunny
45% of time
26%
21%
5%
Weather at 6pm
56°F
Clear/Sunny
37% of time
31%
17%
8%
Weather at 3am
49°F
33%
32%
21%
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:
61°F to 86°F
58°F to 81°F
59°F to 81°F
61°F to 74°F
59°F to 72°F
52°F to 76°F
52°F to 81°F
59°F to 74°F
52°F to 58°F
49°F to 68°F
47°F to 59°F
45°F to 58°F
38°F to 50°F
41°F to 52°F
34°F to 61°F
38°F to 59°F
45°F to 56°F
41°F to 63°F
52°F to 61°F
47°F to 72°F
49°F to 70°F
49°F to 72°F
52°F to 58°F
45°F to 67°F
45°F to 63°F
52°F to 56°F
50°F to 61°F
45°F to 49°F
38°F to 58°F
45°F to 67°F
Map: other cities in Switzerland in september
Cities near Olten:
| Aarau in september | good weather |
| Regionaler Naturpark Thal in september | good weather |
| Langenthal in september | good weather |
| Wohlen in september | good weather |
| Basel in september | good weather |
| Burgdorf in september | tolerable weather |
| Entlebuch in september | good weather |
| Grenchen in september | good weather |
| Delémont in september | good weather |
| Lucerne in september | good weather |
| Zurich in september | good weather |
| Zug in september | good weather |
Click over cities on the map for information about the weather in september.
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.