- Book car hire in the USA for 7 days & pay for just 5
- Offer available to UK residents only
- No hidden charges or credit card fees apply
Iowa weather in August 2022
- 2929°C max day temperature
- 99 days with some rainfall
- 1717°C min night temperature
- 1414 hours of daylight per day
- MModerate heat & humidity
- 105105 mm of monthly rainfall
- 88 (Very High) UV index
Below are average maximum temperatures at popular destinations in Iowa in August. Select a destination to see more weather parameters.
Recommended for Iowa
The August weather guide for Iowa (Des Moines) 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 Iowa in August?
Daytime temperatures usually reach 29°C in Des Moines, Iowa in August with moderate heat and humidity, falling to 17°C at night.
How sunny is it in Iowa in August?
There are normally 10 hours of bright sunshine each day in Des Moines, Iowa in August - that's 69% of daylight hours.
Does it rain in Iowa in August?
There are usually 9 days with some rain in Des Moines, Iowa in August and the average monthly rainfall is 105mm.
Iowa August sunrise & sunset times
Browse the sunrise and sunset times for Iowa in August 2022. Select a month to view Iowa sunrise and sunset times for the next 12 months. The Iowa sunrise and sunset times shown below are for Des Moines.
|Date||Sunrise times||Sunset times|
|Monday, 1st August 2022||06:09||20:32|
|Tuesday, 16th August 2022||06:24||20:12|
|Wednesday, 31st August 2022||06:40||19:49|
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.