Denali National Park weather in August
August in Denali National Park: cool, soaked, with clean air — an excellent time to visit.
#4 of 12 months in Denali National Park · #269 of 604 destinations to visit in August · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Denali National Park climate normals — August
| Daytime high | 16°C / 61°F | 🙂 cool |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 160 mm / 6.3 in | ⛈ soaked |
| Rainy days | 20 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 9°C / 49°F | |
| Sunshine | 8 h/day | |
| Daylight | 16.2 h | |
| Wind | 13 km/h / 8 mph | |
| Snowfall | 0.1 cm / 0 in | |
| Air quality (US AQI) | 26 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Denali National Park in August — FAQ
- Is August a good time to visit Denali National Park?
- August in Denali National Park: cool, soaked, with clean air — an excellent time to visit. It ranks #4 of 12 months for Denali National Park on SeasonMap's comfort score (81/100).
- What is the weather like in Denali National Park in August?
- In August, Denali National Park averages a daily high of 16.1°C and a low of 9.8°C, with about 159.5 mm of rain over roughly 20.2 rainy days.
- What is the air quality in Denali National Park in August?
- Denali National Park has a mean US Air Quality Index of about 26 in August.