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Halemaʻumaʻu

Crater

Halemaʻumaʻu is a crater within Kīlauea at Hawaiʻi Volcanoes National Park known for active volcanism, crater overlooks and ranger talks; visitors come to observe volcanic geology and viewpoints.

Halemaʻumaʻu HiloKailua-KonaWaimeaHawaiʻi Volcanoes NPPuʻuhonua o Hōnaunau National Historical ParkPuʻukoholā Heiau National Historic SiteMauna KeaMauna LoaHualālaiPuʻu ʻŌʻōʻAkaka Falls SPAla Kahakai National Historic TrailHalemaʻumaʻu
In this guide

Halemaʻumaʻu essentials

Address: Hawaiʻi Volcanoes National Park, HI 96718 (Halemaʻumaʻu located within the park, Kīlauea summit)
Website: nps.gov
Hours: Park open 24 hours; visitor center hours vary (typically 9am-5pm)
Admission: Entrance to Hawaiʻi Volcanoes National Park: $30 per vehicle (7-day pass).

About Halemaʻumaʻu

Halemaʻumaʻu is a volcanic pit crater at the summit of Kīlauea on the island of Hawaiʻi and lies within Hawaiʻi Volcanoes National Park. It is one of the best-known volcanic craters in the world and has been the focus of frequent eruptive activity in recent decades.

The crater has periodically contained a lava lake and has produced visible gas and steam plumes during active phases; these episodes have attracted scientists and visitors interested in active volcanism. Designated park overlooks and nearby visitor facilities provide managed points for observation when conditions allow.

The site has long cultural significance in Hawaiian tradition and is associated with the volcano deity Pele. In recent history the crater and the Kīlauea summit experienced major changes during the 2018 summit collapse and associated eruptions, which altered crater morphology and visitation arrangements.

Halemaʻumaʻu sits within Hawaiʻi Volcanoes National Park on the island of Hawaiʻi (the “Big Island”), at the summit area of Kīlauea. The crater is accessed via park roads and viewing areas managed by the National Park Service.

  • Cultural significance: Located within Hawaii Volcanoes National Park on the island of Hawaiʻi and regarded as a sacred site in traditional Hawaiian belief, associated with the deity Pele.
  • Variable activity: Crater activity is variable; the feature has hosted lava lakes, explosive steam events and gas emissions at different times, so viewing conditions and access change with volcanic activity.

What to See#

  • Summit Crater: A large pit crater at the summit of Kīlauea volcano inside Hawaiʻi Volcanoes National Park that has held lava lakes and produced regular steam and gas plumes during eruptive periods.
  • Park Overlooks: Park overlooks and established visitor points around the Kīlauea caldera provide formal viewing areas for the crater and its activity; access is managed by the national park.
Things to Do
When to Go

Best Time to Visit Halemaʻumaʻu

Halemaʻumaʻu is best visited when park advisories allow close access; shoulder seasons (spring and autumn) often balance favorable weather with fewer crowds. Always consult the NPS website for real-time conditions.

Spring
March-May · 12-24°C
Clearer skies and mild conditions at the summit; fewer winter storms.
Autumn
September-November · 12-24°C
Slightly drier than mid-summer; volcanic activity permitting, views and light are favorable.
Winter
December-February · 8-20°C
Cooler and wetter; dramatic weather contrasts but possible closures.

Weather & Climate near Halemaʻumaʻu

Climate

Halemaʻumaʻu's climate is classified as Oceanic - Oceanic climate with consistently warm temperatures year-round. Temperatures range from 10°C to 25°C. Heavy rainfall (2073 mm/year), wettest in March.

Air Quality: AQI 11 Good
Temperature & Rainfall
Temperature Range
25°
Warmest Month
10°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 10° - 22° 16° 167 mm - - 5.3 m/s - -
February - 10° - 21° 16° 185 mm - - 5.6 m/s - -
March - 11° - 21° 16° 275 mm - - 6.0 m/s - -
April - 12° - 22° 17° 130 mm - - 5.9 m/s - -
May - 12° - 23° 18° 159 mm - - 5.6 m/s - -
June - 13° - 24° 18° 52 mm - - 5.9 m/s - -
July - 14° - 24° 19° 146 mm - - 6.3 m/s - -
August - 14° - 25° 19° 175 mm - - 6.0 m/s - -
September - 14° - 24° 19° 104 mm - - 5.5 m/s - -
October - 13° - 24° 19° 203 mm - - 5.5 m/s - -
November - 13° - 23° 18° 266 mm - - 5.7 m/s - -
December - 11° - 21° 16° 211 mm - - 5.7 m/s - -
Getting There & Around

How to Get to Halemaʻumaʻu

Halemaʻumaʻu sits within Hawaiʻi Volcanoes National Park on the Island of Hawaiʻi. The nearest town with services is Hilo (about 45-60 minutes’ drive). From Hilo take Highway 11 southwest to the park entrance; from Kona it’s a longer drive on Highway 11 eastbound. The park is accessible by car year-round, but specific viewpoints and roads around the summit may close during eruptive episodes.

Tips for Visiting Halemaʻumaʻu

  • Check the National Park Service updates for volcanic activity and road closures before visiting - access to Halemaʻumaʻu can change with eruptions.
  • Visit just after sunrise or an hour before sunset to see the crater in dramatic light and avoid midday haze.
  • Dress in layers; elevation and volcanic sulfur can make conditions chilly and changeable.