Last updated: March 2, 2024
The weather in Indianapolis, United States, during August is characterized by an average temperature of 23°C (74°F). Highs can soar to 32°C (91°F), while lows may dip to 13°C (55°F). Typically, the humidity level in Indianapolis throughout August hovers around 70%.
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Average temperature
Maximum temperature
Humidity
In August, Indianapolis averages 101 mm (4.0 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 39 minutes of daylight, with the sun shining for approximately 10 hours 28 minutes each day. Additionally, there is a 40% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In August, the UV Index in Indianapolis reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 3 | 6 | 8 | 9 | 9 | 8 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||