Agua Tibia Spring
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.
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
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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...