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Dubuque weather in August 2025
Expect 27°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Dubuque in August. Check more long-term weather averages for Dubuque in August before you book your next holiday to Iowa in 2025/2026.
- 2727°C max day temperature
- 10 hours of sunshine per day
- 99 days with some rainfall
- 1515°C min night temperature
- 1414 hours of daylight per day
- MModerate heat & humidity
- 113113 mm of monthly rainfall
- 88 (Very High) UV index
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The August 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 August?
Daytime temperatures usually reach 27°C in Dubuque in August with moderate heat and humidity, falling to 15°C at night.
How sunny is it in Dubuque in August?
There are normally 10 hours of bright sunshine each day in Dubuque in August - that's 70% of daylight hours.
Does it rain in Dubuque in August?
There are usually 9 days with some rain in Dubuque in August and the average monthly rainfall is 113mm.
Dubuque August sunrise & sunset times
Browse the sunrise and sunset times for Dubuque in August 2025. Select a month to view Dubuque sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Friday, 1st August 2025 | 04:55 | 19:22 |
Saturday, 16th August 2025 | 05:11 | 19:02 |
Sunday, 31st August 2025 | 05:27 | 18:38 |
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