Steam Vents

Hawaii County, Hawaii · Near Honaunau-Napoopoo
19.4860°N, 155.5980°W · 13,426 ft
Hot 55°F air · Good soaking weather 13,426 ft Open Roadside National Park Service
Steam Vent: Not a Soaking Spring

Steam Vents is a steam vent, not a traditional hot spring. These geothermal features can be extremely dangerous. Boiling water, toxic gases, and unstable ground are common hazards. Do not attempt to soak.

These are steam vents. Hot ground breathing vapor a few steps off the North Pit Trail, higher than thirteen thousand feet up in Hawai'i Volcanoes National Park, Hawaii County. Nothing here holds water you could sit in, and no temperature has been recorded beyond the note that the steam is hot. Honaunau-Napoopoo is the closest town at roughly seventeen miles. The Park Service lists the site as open.

This is summit country. Thin air, cold for Hawaii, with an average year hovering near forty degrees and close to a foot of snow. The vents sit almost on the trail itself, under fifty feet from the tread, on National Park Service ground. Rain is moderate for the island. What the ground looks like up there is not described in the record.

Treat this as a stop on a walk, with no soak at the end. The trail passes within a few paces. Season guidance is missing from the record, so let the snow months and the altitude set your timing. No campground is listed nearby. Check with the park before going.

Terrain

Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around Steam Vents.

Aerial view of the ground around Steam Vents LiDAR bare-earth view of the same ground around Steam Vents
Aerial LiDAR bare earth

Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.

Setting
Gentle slope
The ground tilts gently up to the southwest.
Highest ground nearby
128 ft above the spring
Within a quarter mile, to the southwest
Cross-section through the spring

A slice through the ground from south to north, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Monthly Climate
36°
Jan
35°
Feb
36°
Mar
38°
Apr
39°
May
41°
Jun
42°
Jul
42°
Aug
41°
Sep
40°
Oct
38°
Nov
36°
Dec
Annual Precip: 32.4 in Annual Snow: 11.0 in
Current Conditions
55°F
Clear N 0.0 mph 72% Good soaking weather
Tuesday 49° Low 39° Mostly Cloudy 9% precip
Wednesday 50° Low 40° Mostly Sunny 2% precip
Thursday 48° Low 40° Partly Sunny then Scattered Showers And Thunderstorms 38% precip
Friday 46° Low 39° Mostly Cloudy then Isolated Showers And Thunderstorms 16% precip
Saturday 46° Low 40° Mostly Cloudy 1% precip
Where to Stay

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Very High Altitude Advisory 13,426 ft

Steam Vents sits at 13,426 feet, well above 10,000 ft, where the air holds roughly 30% less oxygen than at sea level. Altitude sickness (headache, nausea, dizziness) is a real risk, especially when combined with the dehydrating effects of hot water. UV exposure is approximately 54% stronger than at sea level. Acclimate for at least 24 hours before soaking, drink extra water, and descend if symptoms worsen.

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Temperature
Hot
Warm Hot Boiling
Avg Air Temp 39°F
Access
Open
Road Access Roadside
Nearest Road North Pit Trail
Distance to Road 49 ft
Land
Ownership Federal
Agency National Park Service
Designation National Park
Unit Hawai'i Volcanoes National Park
Manager National Park Service
Protection 2 - Permanent protection, some use allowed
Frequently Asked Questions
What is the water temperature at Steam Vents?
Steam Vents is classified as hot. An exact temperature measurement has not been recorded.
Where is Steam Vents located?
Steam Vents is located in Hawaii County, Hawaii at 13,426 feet elevation, near Honaunau-Napoopoo. Coordinates: 19.4860°N, 155.5980°W.
How do I get to Steam Vents?
Steam Vents has Roadside road access, with the nearest road being North Pit Trail (49 ft from the road).
Is Steam Vents free to visit?
Steam Vents has Open access. It is managed by National Park Service.