Haleakala National Park in December
In December, Haleakala National Park averages a high of 61°F and a low of 45°F, with 5.3 inches of precipitation (rain plus melted snow). About 70,000 people visit, the 5th busiest of 12 (very busy). Days are 10 hours 53 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 61° / 45°F
- Precipitation
- 5.3in
- Snow
- 0in
- Daylight
- 10h 53m
- Visitors
- 70,000
- Crowds
- Very busy
Best months for weather and crowds instead: April (very busy), August (busy) and September (busy).
Higher or lower in the park, expect a different picture: Ohe'o 258.6, HI at 86 ft averages a December high of 80°F and a low of 69°F.
Weather 1991–2020 averages at Haleakala RS 338, HI, 8.5 miles from the park's center, 6,962 ft. Second station lower down: Ohe'o 258.6, HI, 86 ft, 6.3 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in December
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Hawai'i Volcanoes National Park | 68° / 52° | Very busy | Mild, wet |
| Pearl Harbor National Memorial | 82° / 69° | Very busy | Hot |
| Point Reyes National Seashore | 55° / 44° | Busy | Mild, wet |
| Golden Gate National Recreation Area | 56° / 42° | Busy | Mild, wet |
| Fort Point National Historic Site | 58° / 47° | Very busy | Mild, wet |
Closures, reservations and alerts: Haleakala National Park on nps.gov
All twelve months at Haleakala · National parks to visit in December