Normal weather for Indianapolis 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.
In August, there is an average of 94 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
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 |
12 days | 10 days | |
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.
Temperatures vary between day and night, so it’s smart to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
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.
As it gets cooler in the evening, it’s best to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
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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 12 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.
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