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San Juan Hot Springs flows at an impressive 120°F within Ronald W. Caspers Wilderness Park in Orange County, delivering water 55 degrees warmer than the surrounding air in one of Southern California's most thermally dramatic springs.
The spring emerges at 988 feet elevation in oak and chaparral woodland, requiring a short 865-foot walk from the nearest road through native vegetation. Visitors encounter rocky, brushy terrain typical of southern California foothills where the spring sits in a natural amphitheater of canyon walls. The thermal waters steam visibly in the cool morning air, creating a striking sensory experience.
History of San Juan Hot Springs
San Juan Hot Springs flows on permanent county-protected land within Ronald W. Caspers Wilderness Park, a 8,000-acre preserve managed for conservation and recreation. The spring represents one of Orange County's more dramatic geothermal features, driven by deep crustal heat sources. The location sits along the scenic Ortega Highway corridor between San Juan Capistrano and Temecula.
This short-walk spring offers open public access year-round within the county wilderness park. Annual temperatures average 65°F with 13 inches of precipitation and no snow, enabling year-round visiting. The site sits 8.8 kilometers (5.5 miles) from Falcon Group Campground, offering convenient access for overnight trips. Best visits occur October through May when cooler ambient air creates stronger thermal contrast.
Is San Juan Hot Springs worth visiting?
Best for
- Hot spring soaking
- Overnight camping trips
San Juan Hot Springs is well suited for hot spring soaking and overnight camping trips.
Annual Precip: 13.3 in
Annual Snow: 0.0 in
January
Air 55°F · Water 120°F · +65° contrast
December
Air 55°F · Water 120°F · +65° contrast
February
Air 56°F · Water 120°F · +64° contrast
January offers 22°F more contrast than August
Overview
Falcon Group Campground has three individual group campsites just off the scenic Ortega Highway in Southern California, which connects San Juan Capistrano and Temecula Valley Highway.
The pleasant climate, scenery, trail system and convenient location, make this a popular destination for groups from Los Angeles and San Diego. Hiking is especially popular among campers. Recreation
Hikers of any level can find trails that challenge and accommodate their recreational goals around the...
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Sun protection
Limited shade in warm climate
Camping gear
Nearby camping at Falcon Group
Trash bag
Pack out what you pack in
Water shoes
Hot ground near source
0 miles from Coto De Caza, CA
USGS Quad: CANADA GOBERNADORA 7.5 · PP 492: 166.0 · NOAA: 7.0 · AMS Map: SANTA ANA
What is the water temperature at San Juan Hot Springs?
San Juan Hot Springs has a water temperature of 120°F (49°C). This is considered a hot spring, well above body temperature.
Where is San Juan Hot Springs located?
San Juan Hot Springs is located in Orange County, California at 988 feet elevation, near Coto De Caza. Coordinates: 33.5890°N, 117.5110°W.
How do I get to San Juan Hot Springs?
San Juan Hot Springs has Short Walk road access (0.2 mi from the road).
Is San Juan Hot Springs free to visit?
San Juan Hot Springs has Open access. It is managed by CNTY.
Can I camp near San Juan Hot Springs?
Yes, Falcon Group is located nearby (5.5 miles away).
Is it safe to soak at San Juan Hot Springs?
At 120°F, San Juan Hot Springs is hot enough to require caution. Enter slowly, limit soaking sessions to 15–20 minutes, and stay hydrated. Always tell someone your plans before visiting remote hot springs.
Is San Juan Hot Springs crowded?
San Juan Hot Springs sees varying levels of visitors depending on the season and day of the week.
What should I bring to San Juan Hot Springs?
Essentials for San Juan Hot Springs: swimsuit, towel, water bottle, sun protection (hat, sunscreen), camping gear, a trash bag to pack out what you pack in. The water is over 110°F — test the temperature before entering and watch for scalding near the source.