Which is the hottest month in Indiana?

The hottest time of year in Indianapolis, Indiana is normally July. Expect maximum daytime temperatures to reach 30°C with moderate heat and humidity.

Best time to visit Indiana

Q: When is the best time to visit Indiana?

The best time to visit Indiana (Indianapolis) is June based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Indiana?

In terms of rainfall, July is usually the wettest month in Indianapolis, Indiana with 119mm on average. There are normally 10 days in July with some rain.

Q: When is it sunniest in Indiana?

The sunniest time of year in Indianapolis, Indiana is normally July with bright sunshine on average for 66% of daylight hours; that's 10 hours of sunshine per day.

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

Indiana by month

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

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Top Indiana destinations

Below are average maximum temperatures at popular countries, regions and places in Indiana in August. Select a holiday destination to see more weather parameters.

All Indiana destinations

When is the best time to visit Indiana?

The best time to visit Indiana (Indianapolis) is June based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0.5
Jan
1
Feb
1.5
Mar
2
Apr
4.5
May
5
Jun
4
Jul
4
Aug
4
Sep
2.5
Oct
0.5
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

1
Jan
4
Feb
10
Mar
17
Apr
23
May
28
Jun
30
Jul
29
Aug
25
Sep
19
Oct
11
Nov
4
Dec

Hours of Sunshine (daily)

4
Jan
5
Feb
6
Mar
7
Apr
9
May
10
Jun
10
Jul
9
Aug
8
Sep
6
Oct
4
Nov
3
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Indiana (Indianapolis) 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 / mm) | Imperial (°F / inches)

More about Indiana

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

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

Indiana travel guide - essential info

Below is a beginner's guide to Indiana 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.

Indiana - quick facts
Flight time^✝	11 hours
Time difference	UK -5 to -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes

Indiana tourist information

Visit Indiana

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

Travelling to Indiana?
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Indiana travel guidance

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

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

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

Indiana travel health

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

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

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

Note: CDC - Centers for Disease Control and Prevention

Indiana travel features

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

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

Indiana FAQs

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

Which month has the most rain in Indiana?

In terms of rainfall, January is usually the wettest month in Indianapolis, Indiana with 0mm on average. There are normally no days in January with some rain.

When is it sunniest in Indiana?

The sunniest time of year in Indianapolis, Indiana 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 Indiana?

The sea is usually at its warmest in Indianapolis, Indiana in January when the water temperature reaches 0°C.

What is the flight time to Indiana from the UK?

The flight time to Indiana from the UK is typically 11 hours.

What is the time difference between Indiana and the UK?

The time difference between Indiana and the UK is UK time-5 to UK time-6 hours.

What is the main language spoken in Indiana?

The main language spoken in Indiana is English.

Learn a language for Indiana with Rosetta Stone^*, Busuu^* and Rocket Languages^*.

What is the currency in Indiana?

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

Send money to Indiana with TransferGo^*.

Which plugs are used in Indiana?

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

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

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

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

Do you need a visa for Indiana?

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

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

Indiana travel deals

Holidays to Indiana

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