Tolenas Springs emerges at a mild 68°F in Solano County near Fairfield, barely exceeding ambient temperature by 7.9°F, representing the lower thermal threshold for geothermal features.
Situated at 721 feet elevation in the Coast Ranges foothills, the spring lies 943 meters from the nearest road requiring a short walk through rolling grasslands and oak-studded slopes between Napa Valley and Clear Lake basin.
History of Tolenas Springs
This barely-thermal feature likely owes its slight warmth to shallow geothermal gradients rather than deep crustal circulation, representing a transition between natural springs and purely ambient groundwater in California's inner coast region.
Access requires a short walk approach. Oak Shores Day Use Area (32 km away) at Lake Berryessa offers recreation including fishing, boating, water skiing, and interpretive programs, though no overnight camping.
Is Tolenas Springs worth visiting?
Tolenas Springs is well suited for overnight camping trips.
Annual Precip: 20.5 in
Annual Snow: 0.0 in
January
Air 48°F · Water 68°F · +20° contrast
December
Air 48°F · Water 68°F · +20° contrast
February
Air 51°F · Water 68°F · +18° contrast
January offers 23°F more contrast than August
Overview
Nestled between Blue Ridge and Cedar Roughs east of Napa Valley, Lake Berryessa provides ample public recreation opportunities. Popular activities on and around the large, yet uncrowded lake include fishing, boating, water skiing, wake boarding, jet skiing, sailing, swimming, kayaking, canoeing, wildlife viewing, hiking, biking and picnicking. The Dufer Point Visitor Center offers year-round interpretive events and exhibits highlighting natural and cultural resources.
Lake Berrye...
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Camping gear
Nearby camping at Oak Shores Day Use Area (Ca)
Trash bag
Pack out what you pack in
0 miles from Fairfield, CA
USGS Quad: FIARFIELD NORTH 7.5 · NOAA: 39.0 · AMS Map: SANTA ROSA
What is the water temperature at Tolenas Springs?
Tolenas Springs has a water temperature of 68°F (20°C). This is a warm thermal spring.
Where is Tolenas Springs located?
Tolenas Springs is located in Solano County, California at 721 feet elevation, near Fairfield. Coordinates: 38.3100°N, 122.0530°W.
How do I get to Tolenas Springs?
Tolenas Springs has Short Walk road access (0.6 mi from the road).
Can I camp near Tolenas Springs?
Yes, Oak Shores Day Use Area (Ca) is located nearby (19.9 miles away).
Is it safe to soak at Tolenas Springs?
Tolenas Springs 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 Tolenas Springs crowded?
Tolenas Springs sees varying levels of visitors depending on the season and day of the week.
What should I bring to Tolenas Springs?
Essentials for Tolenas Springs: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.