Agua Tibia Spring

San Diego County, California · Near Rainbow
33.3630°N, 117.0170°W · 1,128 ft
92°F 66°F air · Good soaking weather 1,128 ft Roadside Camping nearby (7.5 mi)
Aerial view of the ground around Agua Tibia Spring LiDAR bare-earth view of the same ground around Agua Tibia 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.

Agua Tibia Spring, in San Diego County near the community of Rainbow, is a soaking-warm spring, low nineties, a few hundred feet from a road at a little over a thousand feet of elevation. Nobody is listed as owner, and public access is unknown, so the temperature is the one thing in its favor until that is settled. Rainbow is about eight miles away.

Location

The road is unnamed, and the spring sits a few hundred feet from it at low elevation in San Diego County, where snow is essentially unheard of and annual rain is about seventeen inches. The land owner and land unit are blank in the record, which leaves the character of the place to your own eyes. No fee and no bath structure appear in the record.

The months that rate best are December through February, with no snow to worry about. Dripping Springs Campground is under eight miles away, the one camping option on record. Access goes unrecorded; confirm ownership before visiting. Comfortable for sitting in on a winter day, the water poses no burn risk.

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 Agua Tibia Spring.

Setting
Gentle slope
The ground tilts gently up to the northeast.
Highest ground nearby
269 ft above the spring
Within a quarter mile, to the northeast
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
80 milliwatts per square meter of heat flow

That's close to the US average of 65. It's higher than at 15% 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
54°
Jan
54°
Feb
57°
Mar
61°
Apr
63°
May
69°
Jun
74°
Jul
76°
Aug
74°
Sep
68°
Oct
60°
Nov
53°
Dec
Annual Precip: 16.5 in Annual Snow: 0.8 in
Best Time to Visit
December Air 53°F · Water 92°F · +39° contrast
January Air 54°F · Water 92°F · +38° contrast
February Air 54°F · Water 92°F · +38° contrast
December offers 23°F more contrast than August
Current Conditions
66°F
ENE 4.3 mph 84% Good soaking weather
Tuesday 82° Low 59° Patchy Fog then Sunny 2% precip
Spring is +10° warmer
Wednesday 80° Low 57° Patchy Fog then Mostly Sunny 2% precip
Spring is +12° warmer
Thursday 81° Low 57° Sunny
Spring is +11° warmer
Friday 84° Low 57° Sunny
Spring is +8° warmer
Saturday 85° Low 58° Sunny
Spring is +7° warmer
Where to Stay

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Nearby Camping
Dripping Springs Campground (Ca) 7.5 mi away

Overview Dripping Springs campground is a wonderful campground adjacent to the Agua Tibia Wilderness.Recreation Recreation in the area includes hiking, trail running, and backpacking.Facilities The campground facilities include restrooms and potable water. No showers or other amenities are available at this location.Natural Features The campground is adjacent to sensitive riparian habitat which is home to the endangered Arroyo Toad. The hills surrounding the campground are covered in southern...

Reservable Yes
Reserve on Recreation.gov →
Temperature
92°F
Warm Hot Boiling
Water Temp 92°F (33°C)
Avg Air Temp 64°F
Above Ambient +28°F
Warm air, warm water September
Access
Road Access Roadside
Distance to Road 293 ft
Frequently Asked Questions
What is the water temperature at Agua Tibia Spring?
Agua Tibia Spring has a water temperature of 92°F (33°C). This is a warm thermal spring.
Where is Agua Tibia Spring located?
Agua Tibia Spring is located in San Diego County, California at 1,128 feet elevation, near Rainbow. Coordinates: 33.3630°N, 117.0170°W.
How do I get to Agua Tibia Spring?
Agua Tibia Spring has Roadside road access (293 ft from the road).
Can I camp near Agua Tibia Spring?
Yes, Dripping Springs Campground (Ca) is located nearby (7.5 miles away).