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Indiana weather in August 2025
Expect 29°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Indiana in August. Check more long-term weather averages for Indiana in August before you book your next holiday to Indiana in 2025/2026.
- 2929°C max day temperature
- 9 hours of sunshine per day
- 99 days with some rainfall
- 1717°C min night temperature
- 1414 hours of daylight per day
- MModerate heat & humidity
- 9393 mm of monthly rainfall
- 88 (Very High) UV index
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Recommended for Indiana
The August weather guide for Indiana (Indianapolis) 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.
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
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Indiana in August?
Daytime temperatures usually reach 29°C in Indianapolis, Indiana in August with moderate heat and humidity, falling to 17°C at night.
How sunny is it in Indiana in August?
There are normally 9 hours of bright sunshine each day in Indianapolis, Indiana in August - that's 65% of daylight hours.
Does it rain in Indiana in August?
There are usually 9 days with some rain in Indianapolis, Indiana in August and the average monthly rainfall is 93mm.
Indiana August sunrise & sunset times
Browse the sunrise and sunset times for Indiana in August 2025. Select a month to view Indiana sunrise and sunset times for the next 12 months. The Indiana sunrise and sunset times shown below are for Indianapolis.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Friday, 1st August 2025 | 05:44 | 19:57 |
Saturday, 16th August 2025 | 05:58 | 19:39 |
Sunday, 31st August 2025 | 06:12 | 19:17 |
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