Updated October 2026
Haleakalā National Park Weather by Month
Haleakalā National Park is warmest in August, when the nearest NOAA climate station averages a high of 66°F and a low of 49°F, and coldest in February, with an average high of 60°F and an average low of 43°F. March is the wettest month, with about 5.7 inches of precipitation.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 6.8 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Haleakalā National Park can differ from these, particularly with elevation.
Warmest month
Aug
66°F avg high
Coldest month
Feb
43°F avg low
Wettest month
Mar
5.7 in avg
Longest days
Jun
13.3 h of daylight
Average weather at Haleakalā by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 61°F | 44°F | 5.1 in | 10.9 h |
| February | 60°F | 43°F | 4.1 in | 11.3 h |
| March | 60°F | 43°F | 5.7 in | 11.9 h |
| April | 61°F | 44°F | 2.8 in | 12.5 h |
| May | 63°F | 46°F | 2.4 in | 13.0 h |
| June | 66°F | 48°F | 1.6 in | 13.3 h |
| July | 66°F | 49°F | 2.7 in | 13.1 h |
| August | 66°F | 49°F | 2.2 in | 12.7 h |
| September | 65°F | 48°F | 2.5 in | 12.1 h |
| October | 64°F | 48°F | 3.3 in | 11.5 h |
| November | 63°F | 47°F | 4.6 in | 11.0 h |
| December | 61°F | 45°F | 5.3 in | 10.7 h |
| Year total | 42.3 in |
NOAA 1991–2020 climate normals from station USC00511004, 6.8 miles from the park's reference point. The station's snowfall normal is zero in all twelve months. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Haleakalā is at that time of year.
Haleakalā weather by season
Winter: December to February
Average highs hold near 61°F in all three months, with average lows near 44°F. Together the three months average 14.5 inches of precipitation, about 34% of the yearly total and more than in any other season. Daylight is at its shortest, about 10.7 hours in December.
Spring: March to May
Average highs climb from 60°F in March to 63°F in May, with average lows between 43°F and 46°F. Together the three months average 10.9 inches of precipitation, about 26% of the yearly total. Daylight lengthens from about 11.9 hours in March to 13.0 in May.
Summer: June to August
Average highs hold near 66°F in all three months, with average lows near 49°F. Together the three months average 6.5 inches of precipitation, about 15% of the yearly total and less than in any other season. Daylight is at its longest, about 13.3 hours in June.
Fall: September to November
Average highs hold near 64°F in all three months, with average lows near 48°F. Together the three months average 10.4 inches of precipitation, about 25% of the yearly total. Daylight shortens from about 12.1 hours in September to 11.0 in November.
What the National Park Service says about the weather
On any given day, the temperatures in the park can range from a high of 80°F (27°C) in Kīpahulu to a low of 30°F (-1°C) at the summit. In either area clouds and rain can quickly replace warm sunshine. Weather in the high-elevation summit and wilderness areas of the park is highly unpredictable and changes often. Cool temperatures, intense solar radiation, and rapidly moving clouds are characteristic. On average, the temperature drops about 3°F for every 1,000 foot rise in elevation.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Haleakalā
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 20.71°N, 156.16°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Haleakalā National Park →
Weather and crowds together
August, the warmest month, sees about 1.0× the visitors of the park's average month. July is the busiest month of the year and November the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Haleakalā National Park. For hotels, cabins and rentals close to the park, see where to stay near Haleakalā.
Where to stay near Haleakalā
Picked a month for Haleakalā National Park? Compare hotels, cabins and vacation rentals near the park with live availability and prices.
Top-rated places to stay near Haleakalā
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Frequently Asked Questions
August is the warmest month at Haleakalā National Park, with an average high of 66°F and an average low of 49°F. That is the 1991–2020 average at the nearest long-record NOAA station, 6.8 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
February is the coldest month at Haleakalā National Park, with an average low of 43°F and an average high of 60°F, based on NOAA 1991–2020 climate normals.
March is the wettest month, with about 5.7 inches of precipitation. June is the driest, at about 1.6 inches. The station records about 42.3 inches of precipitation in an average year.
The nearest long-record NOAA station, 6.8 miles from the park's reference point, shows no measurable snowfall in any month of its 1991–2020 normals.
Weather at nearby parks
52 mi away · warmest in August (89°F)
60 mi away · warmest in September (87°F)
71 mi away · warmest in September (86°F)
91 mi away · warmest in August (78°F)
105 mi away · warmest in August (85°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00511004), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.