Which is the hottest month in Iowa?

The hottest time of year in Des Moines, Iowa is normally July. Expect maximum daytime temperatures to reach 30°C with high heat and humidity.

Best time to visit Iowa

Q: When is the best time to visit Iowa?

The best time to visit Iowa (Des Moines) is June, July and August based on the following average weather conditions. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Iowa?

In terms of rainfall, June is usually the wettest month in Des Moines, Iowa with 115mm on average. There are normally 10 days in June with some rain.

Q: When is it sunniest in Iowa?

The sunniest time of year in Des Moines, Iowa is normally July with bright sunshine on average for 73% of daylight hours; that's 11 hours of sunshine per day.

Find the best time to visit Iowa and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Iowa by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Top Iowa destinations

Below are the temperatures expected today at popular countries, regions and places in Iowa. Select a destination to compare today's forecast with average weather conditions.

All Iowa destinations

When is the best time to visit Iowa?

The best time to visit Iowa (Des Moines) is June, July and August based on the following average weather conditions.

Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

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Hours of Sunshine (daily)

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Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Iowa (Des Moines) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about Iowa

Explore our complete guide to Iowa with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Iowa.

Essential travel guide
Travel guidance
Travel health
Travel features
Top travel deals
FAQs

Iowa travel guide - essential info

Below is a beginner's guide to Iowa with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

Iowa - quick facts
Flight time^✝	11.5 hours
Time difference	UK -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes

Iowa tourist information

Iowa Tourism Office

✝ = Typical flight time from the UK and visa requirements for UK travellers.

Travelling to Iowa?
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Iowa travel guidance

Check the latest travel guidance and advice on visiting Iowa from official government sources (in english) from around the world including entry requirements and travel restrictions.

UK traveller advice for the Iowa - UK FCDO
Irish traveller advice for the Iowa - Department of Foreign Affairs, Ireland
Canadian travel advice for the Iowa - Government of Canada
Safe travel advisories for the Iowa - Ministry of Foreign Affairs, New Zealand
Smarter traveller advice for the Iowa - Department of Foreign Affairs, Australia

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Iowa.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

Iowa travel health

Find out more about staying safe when travelling to Iowa with the latest guidance on required vaccinations and recommended medication to take with you.

Vaccines & medicines for the Iowa - CDC
Health & vaccinations for the Iowa - TravelHealthPro, NaTHNac
How to stay safe & healthy in the Iowa - Fit for Travel, Public Health Scotland

Check out the general travel tips for staying safe and healthy in Iowa, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

Iowa travel features

Do you want to learn more about Iowa? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Iowa.

We don't currently have any travel features on Iowa. Discover more about holiday destinations around the world with this selection of general travel articles.

Iowa FAQs

Read our frequently asked questions about travelling to Iowa including the current entry restrictions, driving side, electrical plugs used and much more.

Which month has the most rain in Iowa?

In terms of rainfall, January is usually the wettest month in Des Moines, Iowa with 0.0 inches on average. There are normally no days in January with some rain.

When is it sunniest in Iowa?

The sunniest time of year in Des Moines, Iowa is normally January with bright sunshine on average for 0% of daylight hours; that's 0 hours of sunshine per day.

When is the sea warmest in Iowa?

The sea is usually at its warmest in Des Moines, Iowa in January when the water temperature reaches 32°F.

What is the flight time to Iowa from the UK?

The flight time to Iowa from the UK is typically 11.5 hours.

What is the time difference between Iowa and the UK?

The time difference between Iowa and the UK is UK time-6 hours.

What is the main language spoken in Iowa?

The main language spoken in Iowa is English.

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What is the currency in Iowa?

The currency in Iowa is the US Dollar (USD).

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Which plugs are used in Iowa?

Iowa uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in Iowa?

They drive on the right side of the road in Iowa.

Find out more about driving in USA with International Drivers Association^*.

Do you need a visa for Iowa?

Yes, UK passport holders do need a visa to enter Iowa.

Check USA visa requirements for all passport holders with VisaHQ^*.

Iowa travel deals

Holidays to Iowa

Check out the latest deals, discount codes and special offers on holidays to Iowa in 2025/2026. Pay low deposits and save with last minute holiday availability and free kids places.