Best Time to Visit Haleakalā National Park
The best months to visit Haleakalā National Park are April, August, September — computed from official NPS visitation (2021–2025 average), NOAA weather normals and daylight. July is the crowd peak (81,811 monthly visits); February is quietest at 74% of peak.
- No Water at Hosmer Campground (Information)
- Expect Long Waits at the Summit Entrance Station Before Sunset (Information)
- Limited Parking and Traffic Delays in Summit District (Information)
Monthly crowd curve
Average monthly recreation visits, 2021–2025 (NPS Visitor Use Statistics). Amber bar = current month.
Haleakalā month by month
| Month | Verdict | Avg visits | % of peak | High / Low | Precip | Daylight |
|---|---|---|---|---|---|---|
| January | Peak crowds | 62,432 | 76% | 61°F / 44°F | 5.1″ | 11h |
| February | Peak crowds | 60,634 | 74% | 60°F / 43°F | 4.1″ | 11.5h |
| March | Peak crowds | 71,636 | 88% | 60°F / 43°F | 5.7″ | 12h |
| April | Best window | 71,936 | 88% | 61°F / 44°F | 2.8″ | 12.6h |
| May | Peak crowds | 79,332 | 97% | 63°F / 46°F | 2.4″ | 13.1h |
| June | Peak crowds | 81,392 | 99% | 66°F / 48°F | 1.6″ | 13.4h |
| July | Peak crowds | 81,811 | 100% | 66°F / 49°F | 2.7″ | 13.3h |
| August | Best window | 70,083 | 86% | 66°F / 49°F | 2.2″ | 12.9h |
| September | Best window | 69,572 | 85% | 65°F / 48°F | 2.5″ | 12.3h |
| October | Peak crowds | 70,749 | 86% | 64°F / 48°F | 3.3″ | 11.7h |
| November | Peak crowds | 67,163 | 82% | 63°F / 47°F | 4.6″ | 11.2h |
| December | Peak crowds | 76,915 | 94% | 61°F / 45°F | 5.3″ | 10.9h |
Crowds: NPS Visitor Use Statistics, mean of 2021–2025 (2020 excluded as a COVID-19 anomaly). Weather: NOAA 1991–2020 monthly normals, station HALEAKALA RS 338, HI US (7 mi from park coordinates). Daylight: computed for the 15th of each month at the park's location. Methodology.
What to pack for Haleakalā in April
Computed from April's weather normals — Haleakalā's best month above. Visiting another month? Each month page has its own weather-computed list.
- Warm mid-layer (fleece or light puffy) — mornings average 44°F
- Packable rain jacket — 2.8″ 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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Common questions
What is the best month to visit Haleakalā?
April, August, September rank best for Haleakalā on VisitWhen's computed score — the strongest balance of low crowds (NPS data), comfortable weather (NOAA normals) and daylight.
What is the most crowded month at Haleakalā?
July: an average of 81,811 recreation visits (NPS, 2021–2025). The quietest is February, at 74% of the July peak.
How many people visit Haleakalā per year?
Haleakalā National Park averaged 863,655 recreation visits per year over 2021–2025, per official NPS Visitor Use Statistics.
Dive into a month
Last verified 2026-09-12 · all parks