Tolenas Springs

Solano County, California · Near Fairfield
38.3100°N, 122.0530°W · 721 ft
68°F 59°F air · Good soaking weather 721 ft Short Walk Camping nearby (19.9 mi)
Aerial view of the ground around Tolenas Springs LiDAR bare-earth view of the same ground around Tolenas Springs
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.

Tolenas Springs, in Solano County, is a barely warm spring a few miles outside Fairfield. At under seventy degrees the water is cooler than a warm bath; you would notice it is warm, and not much more. Getting there means leaving the road and walking a bit. Ownership and access are unrecorded, which for a spot this near a city is the thing to settle first.

Location

Low rolling country at around seven hundred feet, no snow, with a wettish winter. The road ends six tenths of a mile short of the springs, and the record does not name it. no manager is on record and so is the designation. Oak Shores, a day use area twenty miles off, is the closest camping listing and will not take overnighters.

Winter months are best on paper, and the weather here rarely blocks access. Short walk class. No overnight camping nearby in our data. With the water barely warm and nothing recorded about access, this is a curiosity. Check ownership before going.

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 Tolenas Springs.

Setting
Hillside
The spring sits on a steep slope that climbs to the southwest.
Highest ground nearby
168 ft above the spring
Within a quarter mile, to the southwest
Cross-section through the spring

A slice through the ground from north to south, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
139 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 88% 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
48°
Jan
51°
Feb
53°
Mar
58°
Apr
63°
May
70°
Jun
71°
Jul
71°
Aug
70°
Sep
65°
Oct
54°
Nov
48°
Dec
Annual Precip: 20.5 in Annual Snow: 0.0 in
Best Time to Visit
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
Current Conditions
59°F
WSW 33.0 mph 84% Good soaking weather
Today 83° Low 55° Sunny
Wednesday 75° Low 55° Sunny 1% precip
Thursday 80° Low 56° Sunny
Friday 86° Low 57° Sunny
Saturday 83° Low 56° Sunny
Nearby Camping
Nearby Camping
Oak Shores Day Use Area (Ca) 19.9 mi away

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...

Reservable Yes
Reserve on Recreation.gov →
Temperature
68°F
Warm Hot Boiling
Water Temp 68°F (20°C)
Avg Air Temp 60°F
Above Ambient +8°F
Mild soaking conditions September
Access
Road Access Short Walk
Distance to Road 0.6 mi
Frequently Asked Questions
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).