Haleakalā in July: Crowds, Weather & What to Pack
Peak crowds · VisitWhen score 60/100 · #7 of 12 months
July is peak season — expect the year's biggest crowds at Haleakalā National Park: crowds run 100% of the July peak (81,811 average visits). Weather: highs average 66°F and lows 49°F, with 2.7″ of precipitation and 13.3 hours of daylight. Computed from NPS and NOAA data.
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Crowds in July
July is Haleakalā's busiest month — an average of 81,811 recreation visits (2021–2025), the park's crowd peak. Plan lodging and entries with that in mind — book early and start days at dawn.
Weather & daylight
Daytime temperatures are comfortable (highs average 66°F), and nights stay mild (lows average 49°F). Average precipitation is 2.7″ for the month. Mid-month daylight runs 13.3 hours.
NOAA 1991–2020 monthly normals, station HALEAKALA RS 338, HI US (7 mi from park coordinates, 6,962 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of July.
What to pack for Haleakalā in July
Computed from the month's weather normals above — not a generic list.
- Packable rain jacket — 2.7″ of precipitation is normal this month
- Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
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Looking for a better window? The computed best months for Haleakalā are April and August.
Common questions
Is Haleakalā crowded in July?
Yes — July runs 100% of Haleakalā's peak, averaging 81,811 recreation visits (NPS, 2021–2025).
What is the weather like in Haleakalā in July?
Average highs of 66°F, lows of 49°F, 2.7″ of precipitation (NOAA 1991–2020 normals, HALEAKALA RS 338, HI US station).
What should I pack for Haleakalā in July?
Packable rain jacket; 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 July · Last verified 2026-09-24