Cincinnati weather in August
August in Cincinnati: warm, rainy — an excellent time to visit.
#6 of 12 months in Cincinnati · #471 of 897 destinations to visit in August · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cincinnati in August
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Cincinnati climate normals — August
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 19°C / 67°F | |
| Rainfall | 86 mm / 3.4 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 11.3 h/day | |
| Daylight | 13.7 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 61 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cincinnati in August — FAQ
- Is August a good time to visit Cincinnati?
- August in Cincinnati: warm, rainy — an excellent time to visit. It ranks #6 of 12 months for Cincinnati on SeasonMap's comfort score (80/100).
- What is the weather like in Cincinnati in August?
- In August, Cincinnati averages a daily high of 28.4°C and a low of 19.3°C, with about 85.9 mm of rain over roughly 12.4 rainy days.
- What is the air quality in Cincinnati in August?
- Cincinnati has a mean US Air Quality Index of about 61 in August.