Haleakalā National Park

This special place vibrates with stories of ancient and modern Hawaiian culture and protects the bond between the land and its people. The park also cares for endangered species, some of which exist nowhere else. Come visit this special place - renew your spirit amid stark volcanic landscapes and sub-tropical rain forest with an unforgettable hike through the backcountry.

Weather & conditions

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.

What this latitude gives you

From 20.7° north, anything above declination +69.3° is circumpolar here: it never sets, so it is available on every clear night of the year. Anything below declination -69.3° never clears the horizon at all.

Astronomical darkness lasts through every night of the year here, including midsummer, which makes this a rare site for a June or July imaging trip.

We do not hold a measured Bortle class for this site, so treat the sky as unknown until you have taken a reading of your own.