Haleakalā in October: Crowds, Weather & What to Pack
Peak crowds · VisitWhen score 59/100 · #8 of 12 months
October is peak season — expect the year's biggest crowds at Haleakalā National Park: crowds run 86% of the July peak (70,749 average visits), days average 64°F with 11.7 hours of daylight. Computed from NPS and NOAA data.
Crowds in October
Haleakalā averages 70,749 recreation visits in October — 86% of what July, 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 64°F), and nights stay mild (lows average 48°F). Average precipitation is 3.3″ for the month. Mid-month daylight runs 11.7 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 October.
What to pack for Haleakalā in October
Computed from the month's weather normals above — not a generic list.
- Packable rain jacket — 3.3″ 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 months for Haleakalā are April and August.
Common questions
Is Haleakalā crowded in October?
Yes — October runs 86% of Haleakalā's peak, averaging 70,749 recreation visits (NPS, 2021–2025).
What is the weather like in Haleakalā in October?
Average highs of 64°F, lows of 48°F, 3.3″ of precipitation (NOAA 1991–2020 normals, HALEAKALA RS 338, HI US station).
What should I pack for Haleakalā in October?
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 October · Last verified 2026-07-16