Temperatures in August
It's hot in August in Indianapolis with an average temperature of 34°C. Temperatures this month range from a low of 32°C to a high of 37°C. At night, you can expect temperatures between 19°C and 24°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Indianapolis in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Indianapolis with hot temperatures, averaging around 35°C during the day and nights close to 23°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-August
By mid-August, the average daytime temperature drops to around 34°C, with nights close to 21°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of August
By the end of August, the average daytime temperature in Indianapolis will be around 34°C, with nights close to 21°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
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Precipitation in August
In August, there is an average of 94 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The precipitation chance averages 19% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Indianapolis. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Indianapolis in August |
London | ||
|---|---|---|---|
 Average Temperature |
34°C | 22°C | |
 High Temp |
37°C | 24°C | |
| Low Temp |
32°C | 19°C | |
 Total Precipitation |
94 mm | 60 mm | |
| Rainy Days |
6 days | 10 days | |
July
UV index
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is August a good time to visit Indianapolis?
August is a great month to be in Indianapolis for sunny weather. You’ll get high temperatures and not too much rain this month.
Temperature records for Indianapolis in August
With 41°C, Indianapolis hit the highest temperature in the last 10 years in August 2020. The lowest daytime temperature in this month was 22°C in 2022. The extreme night temperatures ranged from a low of 6°C to a high of 27°C.
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Daily Temperature in August in Indianapolis
This chart shows the average daily temperatures, both day and night, for each day in August in Indianapolis, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Indianapolis
The chart below shows the average daily precipitation in August for Indianapolis, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 6 days of rain in Indianapolis.
Daily UV Index in August in Indianapolis
This chart shows the average daily UV index in August in Indianapolis, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Indianapolis Over the Years
This chart shows the average temperature in August in Indianapolis, measured in degrees Celsius, over the past years.
Total Precipitation in August in Indianapolis Over the Years
This chart shows the average precipitation in August in Indianapolis, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Indianapolis
Click on a specific day in August for detailed info on the typical weather on that day in Indianapolis. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Indianapolis
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Average Weather in Indianapolis by Month
Click on a month below to see detailed weather info for Indianapolis. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Indianapolis for all months at once
