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Oshkosh weather in September 2025
Expect 22°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Oshkosh in September. Check more long-term weather averages for Oshkosh in September before you book your next holiday to Wisconsin in 2025/2026.
- 2222°C max day temperature
- 7 hours of sunshine per day
- 1010 days with some rainfall
- 1010°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 9898 mm of monthly rainfall
- 55 (Moderate) UV index
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Recommended for Wisconsin
The September weather guide for Wisconsin (Oshkosh) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Oshkosh in September?
Daytime temperatures usually reach 22°C in Oshkosh in September, falling to 10°C at night.
How sunny is it in Oshkosh in September?
There are normally 7 hours of bright sunshine each day in Oshkosh in September - that's 55% of daylight hours.
Does it rain in Oshkosh in September?
There are usually 10 days with some rain in Oshkosh in September and the average monthly rainfall is 98mm.
Oshkosh September sunrise & sunset times
Browse the sunrise and sunset times for Oshkosh in September 2025. Select a month to view Oshkosh sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:18 | 18:29 |
Monday, 15th September 2025 | 05:34 | 18:04 |
Tuesday, 30th September 2025 | 05:51 | 17:36 |
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