Slates Hot Springs

Monterey County, California · Near Carmel Valley Village
36.1230°N, 121.6400°W · 4 ft
122°F 48°F air · Good soaking weather 4 ft Short Walk Camping nearby (8.3 mi)

Slates Hot Springs sits on the Big Sur coast of Monterey County, at sea level, with Carmel Valley Village the nearest town on record at about 25 miles. The water is hot, past the point where you could sit in it as it comes out. The road is a couple hundred yards back. Who owns it, and if you may enter, are unrecorded.

Location

The coast, right at the water. Wet winters with a good deal of rain and no snow. No name is given for the nearest road, and nothing is recorded about who owns the land or what unit it falls under. Wikipedia places the site eight miles north-northwest of Lopez Point. Escondido Campground lies eight miles or so away.

February tops the list of good months, with December and January behind it. Escondido Campground is about eight miles off. The source can scald on contact, so test before you touch. Access and ownership are unrecorded here, and given that the land was patented to a private owner in the 1880s you should confirm you are welcome before you walk in.

History of Slates Hot Springs

Thomas B. Slate filed a land patent for the site and the ground around it on September 9, 1882. The springs have gone by several names since, Big Sur Hot Springs among them, plus Slate's Springs and Slate's Hot Sulphur Springs.

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 Slates Hot Springs.

Aerial view of the ground around Slates Hot Springs LiDAR bare-earth view of the same ground around Slates Hot Springs
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
Hillside
The spring sits on a steep slope that climbs to the east.
Highest ground nearby
307 ft above the spring
Within a quarter mile, to the east
Cross-section through the spring

A slice through the ground from west to east, about 0.6 miles end to end.

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

Heat Below
112 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 63% 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
56°
Jan
55°
Feb
56°
Mar
59°
Apr
61°
May
66°
Jun
69°
Jul
70°
Aug
70°
Sep
67°
Oct
60°
Nov
55°
Dec
Annual Precip: 27.2 in Annual Snow: 0.4 in
Best Time to Visit
February Air 55°F · Water 122°F · +67° contrast
December Air 55°F · Water 122°F · +67° contrast
January Air 56°F · Water 122°F · +66° contrast
February offers 15°F more contrast than September
Current Conditions
48°F
WNW 0.0 mph 93% Good soaking weather
Today 60° Low 55° Mostly Sunny
Spring is +62° warmer
Wednesday 58° Low 55° Areas Of Fog then Mostly Cloudy 1% precip
Spring is +64° warmer
Thursday 58° Low 57° Patchy Fog
Spring is +64° warmer
Friday 62° Low 58° Sunny
Spring is +60° warmer
Saturday 63° Low 58° Mostly Sunny
Spring is +59° warmer
Where to Stay

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Nearby Camping
Escondido Campground 8.3 mi away

Overview Escondido Campground is one of the best kept secrets in the Santa Lucia Mountains. This family-friendly campground boasts scenic vistas that will take your breath away. Surrounded by spectacular rock formations and sprawling oaks this campground rests in a beautiful grassy meadow. The outdoor activities are endless. Hiking, biking, wildlife viewing, picnicking, and bird watching are just a few of the activities you can do while visiting this Los Padres National Forest gem. Recrea...

Reservable Yes
Reserve on Recreation.gov →
Temperature
122°F
Warm Hot Boiling
Water Temp 122°F (50°C)
Avg Air Temp 62°F
Above Ambient +60°F
Great soaking conditions September
Access
Road Access Short Walk
Distance to Road 0.1 mi
Frequently Asked Questions
What is the water temperature at Slates Hot Springs?
Slates Hot Springs has a water temperature of 122°F (50°C). This is considered a hot spring, well above body temperature.
Where is Slates Hot Springs located?
Slates Hot Springs is located in Monterey County, California at 4 feet elevation, near Carmel Valley Village. Coordinates: 36.1230°N, 121.6400°W.
How do I get to Slates Hot Springs?
Slates Hot Springs has Short Walk road access (0.1 mi from the road).
Can I camp near Slates Hot Springs?
Yes, Escondido Campground is located nearby (8.3 miles away).
Is it safe to soak at Slates Hot Springs?
With care. At 122°F Slates Hot Springs is hot enough to need short sessions, fifteen to twenty minutes, and plenty of water. Enter slowly and get out if you feel light-headed.
Sources: Wikipedia