Hawaiʻi Volcanoes in August: Crowds, Weather & What to Pack
Peak crowds · VisitWhen score 47/100 · #7 of 12 months
August is peak season — expect the year's biggest crowds at Hawaiʻi Volcanoes National Park: crowds run 92% of the December peak (139,355 average visits), days average 77°F with 12.8 hours of daylight. Computed from NPS and NOAA data.
Crowds in August
Hawaiʻi Volcanoes averages 139,355 recreation visits in August — 92% of what December, the peak month, draws. Plan lodging and entries with that in mind — book early and start days at dawn.
Weather & daylight
Daytime temperatures are comfortable (highs average 77°F), and nights stay mild (lows average 62°F). This is one of the wetter months (23.5″ of precipitation on average). Mid-month daylight runs 12.8 hours.
NOAA 1991–2020 monthly normals, station GLENWOOD #2 55.4, HI US (8 mi from park coordinates, 2,200 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of August.
What to pack for Hawaiʻi Volcanoes in August
Computed from the month's weather normals above — not a generic list.
- Rain shell + pack cover — 23.5″ of precipitation is normal this month
- Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
Looking for a better window? The computed best month for Hawaiʻi Volcanoes is April.
Common questions
Is Hawaiʻi Volcanoes crowded in August?
Yes — August runs 92% of Hawaiʻi Volcanoes's peak, averaging 139,355 recreation visits (NPS, 2021–2025).
What is the weather like in Hawaiʻi Volcanoes in August?
Average highs of 77°F, lows of 62°F, 23.5″ of precipitation (NOAA 1991–2020 normals, GLENWOOD #2 55.4, HI US station).
What should I pack for Hawaiʻi Volcanoes in August?
Rain shell + pack cover; Sturdy broken-in footwear, navigation and a basic first-aid kit — the full weather-computed list is on this page.
See also: the best national parks to visit in August · Last verified 2026-07-16