Lassen Volcanic National Park weather in August
August in Lassen Volcanic National Park: nice, dry — an excellent time to visit.
#3 of 12 months in Lassen Volcanic National Park · #76 of 604 destinations to visit in August · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Lassen Volcanic National Park climate normals — August
| Daytime high | 26°C / 78°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 53°F | |
| Feels like (high) | 23°C / 73°F | |
| Rainfall | 17 mm / 0.7 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 41% | 🍃 comfortable |
| Dew point | 2°C / 36°F | |
| Sunshine | 12.5 h/day | |
| Daylight | 13.7 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 56 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Lassen Volcanic National Park?
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Lassen Volcanic National Park in August — FAQ
- Is August a good time to visit Lassen Volcanic National Park?
- August in Lassen Volcanic National Park: nice, dry — an excellent time to visit. It ranks #3 of 12 months for Lassen Volcanic National Park on SeasonMap's comfort score (90/100).
- What is the weather like in Lassen Volcanic National Park in August?
- In August, Lassen Volcanic National Park averages a daily high of 25.5°C and a low of 11.7°C, with about 17.4 mm of rain over roughly 4.8 rainy days.
- What is the air quality in Lassen Volcanic National Park in August?
- Lassen Volcanic National Park has a mean US Air Quality Index of about 56 in August.