Hosmer Grove Campground
Open — Open year-round with reservations required via Recreation.gov. Limited to 3 nights total in any 30-day period. Fire ban currently in effect; all open fires including grills are prohibited. Potable water available at spigots, but the water fountain is offline. Check-in at 2:00 p.m., check-out at 11:00 a.m.
Hydrologic Outlook issued April 5 at 2:39PM HST by NWS Honolulu HI
ESFHFO A significant pattern change is expected to begin Tuesday as an upper disturbance and surface low pressure system evolve northwest of the islands. This system is expected to draw deep tropical moisture northward over the state, leading to an extended period of moderate to breezy southerly winds, increasing chances for widespread rainfall, and renewed flooding concerns from late Tuesday through next weekend. Now is a good time to prepare for possible flooding impacts: - Clear gutters, storm drains, culverts, and drainage areas of debris to improve water flow - Move valuable items out of low-lying or flood-prone areas - Check pumps, generators, and emergency equipment to ensure they are operational - Take stock of emergency supplies, including food, water, medications, flashlights, and backup power sources - Review family emergency plans and check on neighbors and family, especially those in flood-prone locations Residents living near streams, rivers, gulches, valleys, ravines, and flood-prone areas should remain especially alert and be prepared to move to higher ground if flash flooding develops. This outlook will be updated daily or sooner if needed. Stay up to date with the latest forecast information through weather.gov/hawaii, local media, social media, and NOAA Weather Radio broadcasts.
Fire Ban in Hosmer Campground
Due to severe fire danger, all open fires (including grills) are banned in Hosmer Campground until further notice.
Expect Long Waits at the Summit Entrance Station Before Sunset
Due to a high volume of traffic, cars may be temporarily turned around at the gate when capacity is reached. Purchasing a pass online does not guarantee entry at sunset. To ensure timely access, arrive 3 hours before sunset.
No Water in the Hōlua Area
As of August 8, 2025, there is NO water in the Hōlua area (Patrol and Visitor Cabins). This is the result of an extremely dry summer season. All backcountry travelers should plan to pack in all needed water when traveling through the Hōlua Area.
Hosmer Grove Water Fountain
As of August 15, 2025, the water fountain at Hosmer Grove is offline. There is potable water available at the spigots in the campground area.
Paving on Crater Road (Route 378)
Paving has begun on the road to the Summit District. Work will be done in sections between Mile Post 0 in Kula and Haleakalā entrance through October. Expect delays and leave extra time Monday through Friday, 8 a.m. to 5 p.m.
Drive Cautiously - Endangered Birds on Roadway
Nēnē (Hawaiian geese) and ʻuaʻu (Hawaiian petrel) are nesting in the park and may land on or frequent park roads, parking lots, and road leading up to the park. Drivers are reminded to drive at the posted speed limits and exercise caution.
Hydrologic Outlook issued April 4 at 8:55AM HST by NWS Honolulu HI
ESFHFO Southerly winds associated with low pressure developing northwest of the islands will draw a very moist tropical airmass northward early next week. This will bring periods of heavy rain and a risk of flash flooding. The most likely period for significant impacts is Wednesday night through Thursday night. However, afternoon shower development over island interiors on Tuesday may be heavy as well. The duration of flooding potential remains less certain than usual as deep moisture remains over the state into the middle of April leading to potential for additional waves of heavy rain next weekend or beyond. Now would be a good time to clear storm drains, culverts, and other drainage areas of debris to help reduce localized flooding. This outlook will be updated daily or sooner if needed. Stay up to date with the latest forecast information through weather.gov/hawaii, local media, social media, or NOAA Weather Radio broadcasts.
About
Hosmer Grove Campground sits at 6,800 feet elevation in the Summit District of Haleakalā National Park, nestled in the mountain's cloud belt. The campground features 6 tent-only sites spread across a sloping, grassy field, each equipped with a picnic table and grill. Small camping trailers and pop-up campers are permitted only in designated parking spaces. The campground serves as an excellent base for exploring over 30 miles of trails that descend into Haleakalā Crater. A self-guided nature trail begins and ends at the campground, winding through the eucalyptus grove planted in 1909 and adjacent sub-alpine shrubland. The area is renowned for bird watching, with native Hawaiian forest birds most active at dawn. Hikers should note that the soft, sandy nature of crater trails requires twice as much time to ascend as to descend, and there is no shade or water on the crater floor. The campground lies in Haleakalā's cloud belt and frequently experiences misty, rainy conditions, particularly during winter months and afternoons. Weather can change rapidly from warm and sunny to cold and wet. Nighttime temperatures drop to near freezing in winter, with daytime highs averaging 50-65°F year-round. The Park Headquarters Visitor Center is located a short distance up the summit road, with another visitor center at the volcano's rim.
Directions
From Kahului, drive 28 miles along Haleakalā Highway 37 to 377. Allow at least 1 hour 45 minutes from Kahului to the park entrance station. Seven hundred feet past the Summit District Entrance Station, turn left at the four-way intersection following signs for Hosmer Grove Campground. Follow the road for 0.5 mile to reach the campground parking lot.
Nearby Campgrounds
Amenities
| Water | Yes |
| Fires Allowed | No |
| Toilets | Yes |
| Dump Station | No |
| Wifi | No |
| Pets Allowed | No |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $20 |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| hale_interpretation@nps.gov | |
| Phone | +1 (808) 572-4400 |
Cell Service
| AT&T | None |
| Verizon | None |
| T-Mobile | None |
Availability
Photos
Community Posts
No posts yet. Be the first to share your experience!