December is a good month at Haleakalā — it ranks 12th of the twelve here. Expect about 6% fewer visitors than July, the park's peak — 76,915 visits on average. Days run around 61°F by afternoon and 45°F at night, with 10.9 hours of daylight.
December against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| December (this page) | Good | 76,915 | −6% | 61°F | 45°F | 0" | 10.9 h |
| February (best) | Good | 60,634 | −26% | 60°F | 43°F | 0" | 11.4 h |
| July (peak crowds) | Good | 81,811 | peak | 66°F | 49°F | 0" | 13.3 h |
Weather figures are for the park headquarters area (7,000 ft — the summit runs colder) — the Haleakala RS 338 station. Visits are 2021–2025 averages; climate normals cover 1991–2020. Conditions vary across the park; check current status before you go.
Common questions
Is December a good time to visit Haleakalā?
It is a reasonable month — the park has stronger ones, but the records don't argue against it. December ranks 12 of 12 at Haleakalā on crowds, weather, daylight, and access together.
How crowded is Haleakalā in December?
About 76,915 recreation visits on average — 6% below July, the park's peak.
How warm is Haleakalā in December?
Average highs around 61°F and lows around 45°F at the Haleakala RS 338 station.
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