Best Time to Visit Haleakalā National Park
The best months to visit Haleakalā National Park are April, August and 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.
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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.
How many people visit Haleakalā each year
Haleakalā National Park had 853,711 recreation visits in 2025, 17% more than 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2016, with 1,263,558. Over 2021–2025 it averaged 863,655 visits a year, which makes it the 28th most-visited of the 63 national parks.
| Year | Recreation visits | vs. year before |
|---|---|---|
| 2025 | 853,711 | +17% |
| 2024 | 732,477 | −7% |
| 2023 | 791,292 | −27% |
| 2022 | 1,087,616 | +27% |
| 2021 | 853,181 | +167% |
| 2020 | 319,147 | −68% |
| 2019 | 994,394 | −5% |
| 2018 | 1,044,084 | −6% |
| 2017 | 1,112,390 | −12% |
| 2016 | 1,263,558 | +4% |
| 2015 | 1,216,772 | — |
Calendar-year recreation visits as published by NPS Visitor Use Statistics. 2020 is shown here but left out of the monthly averages above, because the COVID-19 pandemic makes it unrepresentative. See how every park compares: all 63 parks ranked by visits.
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 and 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.
When is Haleakalā least crowded with decent conditions?
February. It is the park's quietest month (74% of the July peak, 60,634 average visits) without harsh-season weather.
How many people visit Haleakalā per year?
Haleakalā National Park had 853,711 recreation visits in 2025, 17% more than 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2016, with 1,263,558. Over 2021–2025 it averaged 863,655 visits a year.
What is the weather like at Haleakalā through the year?
The warmest month is August, with average highs of 66°F. The coldest nights come in February, averaging 43°F. The wettest month is March, with 5.7″ of precipitation. (NOAA 1991–2020 normals, HALEAKALA RS 338, HI US station.)
Dive into a month
Comparing parks for the same trip? See how Haleakalā ranks against all 63 parks in April, August and September.
Last verified 2026-09-24 · all parks