Hawaiʻi Volcanoes in April: Crowds, Weather & What to Pack

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April is one of the best months of the year to visit Hawaiʻi Volcanoes National Park: crowds run 73% of the December peak (109,889 average visits), days average 73°F with 12.6 hours of daylight. Computed from NPS and NOAA data.

Crowds in April

Hawaiʻi Volcanoes averages 109,889 recreation visits in April — 73% of what December, the peak month, draws — the quietest month of the year. Trailheads and parking fill accordingly — book early and start days at dawn.

Weather & daylight

Days are mild (highs average 73°F), and nights stay mild (lows average 58°F). This is one of the wetter months (22.0″ of precipitation on average). Mid-month daylight runs 12.6 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 April.

What to pack for Hawaiʻi Volcanoes in April

Computed from the month's weather normals above — not a generic list.

• Rain shell + pack cover — 22.0″ of precipitation is normal this month
• Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month

Common questions

See also: the best national parks to visit in April · Last verified 2026-07-16