Yosemite National Park weather in August
August in Yosemite National Park: nice, dry, with clean air — one of the best months to visit.
#1 of 12 months in Yosemite National Park · #9 of 604 destinations to visit in August · comfort 95/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Yosemite National Park climate normals — August
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Feels like (high) | 21°C / 70°F | |
| Rainfall | 27 mm / 1.1 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 51% | 🍃 comfortable |
| Dew point | 4°C / 38°F | |
| Sunshine | 12.4 h/day | |
| Daylight | 13.6 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Yosemite National Park in August — FAQ
- Is August a good time to visit Yosemite National Park?
- August in Yosemite National Park: nice, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Yosemite National Park on SeasonMap's comfort score (95/100).
- What is the weather like in Yosemite National Park in August?
- In August, Yosemite National Park averages a daily high of 22.9°C and a low of 9.9°C, with about 27.4 mm of rain over roughly 5 rainy days.
- What is the air quality in Yosemite National Park in August?
- Yosemite National Park has a mean US Air Quality Index of about 44 in August.