Hawaiʻi Volcanoes in July: Crowds, Weather & What to Pack
Peak crowds · VisitWhen score 46/100 · #9 of 12 months
July is peak season — expect the year's biggest crowds at Hawaiʻi Volcanoes National Park: crowds run 97% of the December peak (146,134 average visits). Weather: highs average 77°F and lows 62°F, with 19.0″ of precipitation and 13.2 hours of daylight. Computed from NPS and NOAA data.
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Bring for Hawaiʻi Volcanoes in July
- Rain shell + pack coverSee it on AmazonWhy: 19.0″ of precipitation is normal this month.
- Waterproof boots — plus navigation and a basic first-aid kitSee it on AmazonWhy: 19.0″ of rain is normal this month.
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Crowds in July
Hawaiʻi Volcanoes averages 146,134 recreation visits in July — 97% of what December, the peak month, draws. Trailheads and parking fill accordingly — book early and start days at dawn.
Weather & daylight
Days are mild (highs average 77°F), and nights stay mild (lows average 62°F). This is one of the wetter months (19.0″ of precipitation on average). Mid-month daylight runs 13.2 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 July.
What to pack for Hawaiʻi Volcanoes in July
Computed from the month's weather normals above — not a generic list.
- Rain shell + pack cover — 19.0″ of precipitation is normal this month
- Waterproof boots — plus navigation and a basic first-aid kit — 19.0″ of rain is normal this month
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If your dates are flexible, consider shifting: The computed best month for Hawaiʻi Volcanoes is April.
Common questions
Is Hawaiʻi Volcanoes crowded in July?
Yes — July runs 97% of Hawaiʻi Volcanoes's peak, averaging 146,134 recreation visits (NPS, 2021–2025).
What is the weather like in Hawaiʻi Volcanoes in July?
Average highs of 77°F, lows of 62°F, 19.0″ of precipitation (NOAA 1991–2020 normals, GLENWOOD #2 55.4, HI US station).
What should I pack for Hawaiʻi Volcanoes in July?
Rain shell + pack cover; Waterproof boots — plus 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 July · Last verified 2026-09-24