Denver weather in August
August in Denver: hot, a little rain, with clean air — an excellent time to visit.
#3 of 12 months in Denver · #67 of 604 destinations to visit in August · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Denver climate normals — August
| Daytime high | 30°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 15°C / 59°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 36 mm / 1.4 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 51% | 🍃 comfortable |
| Dew point | 10°C / 49°F | |
| Sunshine | 12.1 h/day | |
| Daylight | 13.7 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Denver in August — FAQ
- Is August a good time to visit Denver?
- August in Denver: hot, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Denver on SeasonMap's comfort score (90/100).
- What is the weather like in Denver in August?
- In August, Denver averages a daily high of 30.3°C and a low of 15°C, with about 35.5 mm of rain over roughly 7.8 rainy days.
- What is the air quality in Denver in August?
- Denver has a mean US Air Quality Index of about 46 in August.