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Dubuque weather in September 2025
Expect 23°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Dubuque in September. Check more long-term weather averages for Dubuque in September before you book your next holiday to Iowa in 2025/2026.
- 2323°C max day temperature
- 8 hours of sunshine per day
- 99 days with some rainfall
- 1111°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 105105 mm of monthly rainfall
- 66 (High) UV index
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Recommended for Iowa
The September weather guide for Iowa (Dubuque) 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 Dubuque in September?
Daytime temperatures usually reach 23°C in Dubuque in September, falling to 11°C at night.
How sunny is it in Dubuque in September?
There are normally 8 hours of bright sunshine each day in Dubuque in September - that's 61% of daylight hours.
Does it rain in Dubuque in September?
There are usually 9 days with some rain in Dubuque in September and the average monthly rainfall is 105mm.
Dubuque September sunrise & sunset times
Browse the sunrise and sunset times for Dubuque in September 2025. Select a month to view Dubuque sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:28 | 18:36 |
Monday, 15th September 2025 | 05:43 | 18:12 |
Tuesday, 30th September 2025 | 05:59 | 17:45 |
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