Summer Lake Hot Spring

Lake County, Oregon · Near Lakeview
42.7250°N, 120.6460°W
109°F 34°F air · Good soaking weather Roadside Camping nearby (10.6 mi)

Summer Lake Hot Spring sits at the south end of Summer Lake in Lake County, about forty miles from Lakeview. The water comes up at soaking temperature, hot bath range, with no cooling needed. Wikipedia describes artesian mineral springs with four surface sources and complex chemistry. The record does not settle ownership or public access, so plan on confirming both.

Location

The spring is roadside, about sixty yards off a road with no name on file. Winters in this part of Lake County pile up more than four feet of snow, and precipitation for the year is moderate. Elevation is not given on file. For a place to stay the record points to Bald Butte Lookout in the Fremont-Winema National Forest, around eleven miles away.

Midwinter ranks highest on file, snow included. Roadside access. As measured, the water is comfortable for a long soak. No fee is listed and no public access status appears, so check before you visit. Bald Butte Lookout is the camping on record.

History of Summer Lake Hot Spring

Wikipedia calls these natural hot springs at the south end of Summer Lake, artesian, with four separate surface sources and a complex mineral chemistry.

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 Summer Lake Hot Spring.

Aerial view of the ground around Summer Lake Hot Spring LiDAR bare-earth view of the same ground around Summer Lake Hot Spring
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
Open ground
Flat, open ground all around.
Highest ground nearby
11 ft above the spring
Within a quarter mile, to the south
Cross-section through the spring

A slice through the ground from southwest to northeast, about 0.6 miles end to end.

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

Heat Below
102 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 51% of the springs on this site.

Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
32°
Jan
33°
Feb
38°
Mar
46°
Apr
54°
May
64°
Jun
74°
Jul
73°
Aug
64°
Sep
51°
Oct
39°
Nov
31°
Dec
Annual Precip: 17.9 in Annual Snow: 51.8 in
Best Time to Visit
December Air 31°F · Water 109°F · +78° contrast
January Air 32°F · Water 109°F · +77° contrast
February Air 33°F · Water 109°F · +76° contrast
December offers 43°F more contrast than July
Current Conditions
34°F
Clear N 20.9 mph 79% Good soaking weather
Tuesday 75° Low 44° Sunny 5% precip
Spring is +34° warmer
Wednesday 67° Low 45° Slight Chance Light Rain then Mostly Sunny 18% precip
Spring is +42° warmer
Thursday 69° Low 45° Chance Light Rain 40% precip
Spring is +40° warmer
Friday 75° Low 46° Sunny 2% precip
Spring is +34° warmer
Saturday 78° Low 48° Sunny
Spring is +31° warmer
Where to Stay

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Nearby Camping
Bald Butte Lookout (Fremont Winema National Forest, Or) 10.6 mi away

Overview Bald Butte Lookout is perched atop the windy summit of Bald Butte in the Fremont-Winema National Forest in south-central Oregon. It is surrounded by forested hillsides and expansive views. The lookout was built in 1931 and served as a Forest Service fire detection site for over 50 years. It was constructed from an Aladdin L4 ground-mounted lookout kit in which all of the pieces were pre-cut in six-foot lengths or less so the entire kit could be packed by horses into the remote site....

Reservable Yes
Reserve on Recreation.gov →
Temperature
109°F
Warm Hot Boiling
Water Temp 109°F (43°C)
Avg Air Temp 50°F
Above Ambient +59°F
Good soaking conditions September
Access
Road Access Roadside
Distance to Road 192 ft
Frequently Asked Questions
What is the water temperature at Summer Lake Hot Spring?
Summer Lake Hot Spring has a water temperature of 109°F (43°C). This is considered a hot spring, well above body temperature.
Where is Summer Lake Hot Spring located?
Summer Lake Hot Spring is located in Lake County, Oregon, near Lakeview. Coordinates: 42.7250°N, 120.6460°W.
How do I get to Summer Lake Hot Spring?
Summer Lake Hot Spring has Roadside road access (192 ft from the road).
Can I camp near Summer Lake Hot Spring?
Yes, Bald Butte Lookout (Fremont Winema National Forest, Or) is located nearby (10.6 miles away).
Sources: Wikipedia