Agua Tibia Spring emerges at 92°F (33°C) near Rainbow in San Diego's foothills, where the name aptly means warm water in Spanish—a moderate thermal discharge just 28 degrees above the ambient temperature.
The spring flows roadside at 1,128 feet elevation in a transitional landscape where coastal and inland climates meet. Chaparral and oak woodlands dominate this terrain; the pool sits accessible and immediate, with riparian vegetation indicating the presence of underground water systems.
History of Agua Tibia Spring
Agua Tibia sits within a region of mixed geothermal activity and is named for its moderate warmth compared to hotter desert springs. The nearby Agua Tibia Wilderness holds archaeological evidence of Indigenous use and later Spanish colonial interest in the area's thermal waters.
The spring is immediately accessible from the road, making it one of San Diego County's easiest thermal water visits. Visit October through May when temperatures are moderate. Note the sensitive Arroyo Toad habitat nearby—observe regulations protecting this endangered species.
Is Agua Tibia Spring worth visiting?
Best for
- Warm-water soaking
- Easy day trips
- Overnight camping trips
Agua Tibia Spring is well suited for warm-water soaking and easy day trips.
Annual Precip: 16.5 in
Annual Snow: 0.8 in
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
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...
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Camping gear
Nearby camping at Dripping Springs Campground (Ca)
Trash bag
Pack out what you pack in
USGS Quad: (PALA 7.5) · PP 492: 178.0 · NOAA: 12.0 · AMS Map: SANTA ANA
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).
Is it safe to soak at Agua Tibia Spring?
Agua Tibia Spring is generally safe for soaking at its recorded temperature. Access may be on private land or unconfirmed — verify current conditions before visiting. Always tell someone your plans before visiting remote hot springs.
Is Agua Tibia Spring crowded?
Agua Tibia Spring is accessible from a paved road, making it easy to reach. Weekends and holidays may be busier — consider visiting on a weekday for a quieter experience.
What should I bring to Agua Tibia Spring?
Essentials for Agua Tibia Spring: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.