Indianapolis weather in August 2021

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  • 29°C maximum daytime temperature in August in Indianapolis29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in August in Indianapolis9
    9 days with some rainfall
  • 17°C minimum night-time temperature in August in Indianapolis17
    17°C min night temperature
  • 14 hours of daylight per day in August in Indianapolis14
    14 hours of daylight per day
  • Moderate heat & humidity in August in IndianapolisM
    Moderate heat & humidity
  • 93 mm monthly rainfall in August in Indianapolis93
    93 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Indianapolis8
    8 (Very High) UV index

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The August weather guide for Indianapolis, Indiana 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.

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How hot is it in Indianapolis in August?

Daytime temperatures usually reach 29°C in Indianapolis in August with moderate heat and humidity, falling to 17°C at night.

How sunny is it in Indianapolis in August?

There are normally 9 hours of bright sunshine each day in Indianapolis in August - that's 65% of daylight hours.

Does it rain in Indianapolis in August?

There are usually 9 days with some rain in Indianapolis in August and the average monthly rainfall is 93mm.

Indianapolis sunrise & sunset times for August 2021

Browse the sunrise & sunset times for Indianapolis in August 2021. Select a month to view Indianapolis sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Sunday, 1st August 2021 06:44 20:57
Monday, 16th August 2021 06:58 20:39
Tuesday, 31st August 2021 07:12 20:17
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where is hot in Indiana in August for 2021/2022?

Below are average maximum temperatures at popular destinations in Indiana in August. Select a destination to see more weather parameters.

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