Seasons
Haleakala National Park is open year-round, 24 hours a day, 7 days a week, except for severe weather closures.

Hours
The park is open 24 hours a day. Park Headquarters Visitor Center (7000 ft/2134 m) - 8:00 a.m. to 4:00 p.m. Haleakala Visitor Center (9740 ft/2969 m) - 6:30 a.m. to 3:30 p.m. Kipahulu Visitor Center (sea level) - 9:00 a.m. to 5:00 p.m.

Visitor Centers
Park Headquarters Visitor Center, Haleakala Visitor Center, and Kipahulu Visitor Center are open daily and year round subject to staff availability (with the exception of Haleakala Visitor Center on December 25 and January 1).

All visitor centers have cultural and natural history exhibits. Books, maps, and posters are offered for sale by the Hawaii Natural History Association. Naturalists are on duty during business hours to answer questions and help you make the most of your visit.

There is a pay phone near both the Park Headquarters Visitor Center and the Kipahulu Visitor Center.