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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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Bring for Haleakalā in July

  1. Packable rain jacketSee it on AmazonWhy: 2.7″ of precipitation is normal this month.
  2. Sturdy, broken-in hiking bootsSee it on AmazonWhy: every park, every month.
  3. Water bottles for the daySee it on AmazonWhy: hydration is one of the NPS Ten Essentials.

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Haleakalā in July: what the park service says

July is deep in the dry summer, when water at the three crater cabins cannot be counted on and should be carried in; even when it is there, it is untreated. Palikū, at 6,380 feet on the east end of the valley, feels different from the rest: clouds and fog spill over the cliffs behind it, keeping it cool and lush, but reaching it takes a strenuous 9.3-mile hike down Sliding Sands. Kapalaoa stands in a grass field near Kaupō Gap, about 5.5 miles in. Crater days run around 40-70°F and nights 30-50°F, and in a storm the wind can top 80 mph with temperatures well below freezing.

Source: NPS, checked 2026-11-08.

'Ahinahina blooms in Haleakala crater
Haleakalā National Park — photo: NPS (public-domain NPS media)

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.

Average visits (July)
81,811 (mean 2021–2025, NPS)
Share of the year
9.5% of annual visitation
vs. peak (July)
100%

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.

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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). See every month at Haleakalā.

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). Compare it with other national parks in July.

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. Going in August instead? Haleakalā in August has its own list.

← Haleakalā in June All months Haleakalā in August →

See also: the best national parks to visit in July · Last verified 2026-09-24

Also check in July

The nearest other parks that are not closed or rated Harsh in July, with the same NPS × NOAA verdict. Distance is a straight line.