Willett Hot Springs

Ventura County, California · Near Fillmore
34.5756°N, 119.0511°W · 2,787 ft
64°F air · Good soaking weather 2,787 ft Open Hike USFS Camping nearby (6.8 mi)
Aerial view of the ground around Willett Hot Springs LiDAR bare-earth view of the same ground around Willett Hot 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.

A second entry on file for Willett Hot Springs, at a lower elevation than the other and with no temperature attached. Same Ventura County wilderness, same Los Padres National Forest, same open access. Fillmore is the nearest town, about 14 miles. Treat this as a location record for the same spring complex; the other Willett page carries the thermal reading.

Location

The hike in is a little longer by this record, about four and a third miles off Mutau OHV Road. Elevation here is under 2,800 feet, lower and milder, with snow a minor event most winters and fifteen inches of rain. Middle Lion Campground is the closest camping, under seven miles away. Sespe Wilderness.

This record lists no best months. Because the temperature is blank here, rely on the other Willett listing for heat and on this one for position only. Forest Service wilderness rules apply. No fee recorded. Middle Lion is the place to camp if you want a base.

History of Willett Hot Springs

Wikipedia describes the hot spring as having a built basin that collects the flow and puts it in the Sespe Wilderness north of Ojai, reached most often by a long hike, about eleven miles, out of the Piedra Blanca trailhead.

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 Willett Hot Springs.

Setting
Canyon floor
Steep ground climbs away on both sides of the spring.
Highest ground nearby
935 ft above the spring
Within a quarter mile, to the north
Cross-section through the spring

A slice through the ground from west to east, about 0.6 miles end to end.

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

Heat Below
96 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 40% 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
50°
Jan
50°
Feb
53°
Mar
58°
Apr
61°
May
70°
Jun
75°
Jul
76°
Aug
72°
Sep
65°
Oct
56°
Nov
49°
Dec
Annual Precip: 14.5 in Annual Snow: 4.4 in
Current Conditions
64°F
W 5.4 mph 56% Good soaking weather
Today 80° Low 42° Sunny 1% precip
Wednesday 80° Low 43° Sunny 2% precip
Thursday 80° Low 44° Sunny
Friday 84° Low 45° Sunny
Saturday 86° Low 46° Sunny
Where to Stay

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Nearby Camping
Middle Lion Campground 6.8 mi away

Overview Leave the city vibe behind as you meander down a winding, partially paved, narrow road that leads you into wooded Middle Lion Campground and day use area. Relax next to the running creek, take a refreshing dip, or hike the nearby trails. Tucked away in a canyon encased by chaparral and wildflower covered mountains, Middle Lion Campground is particularly beautiful in the spring and fall, but camping is great year-round.Recreation The Lion Canyon Trail (22W06) starts at the back of the...

Reservable Yes
Reserve on Recreation.gov →
Temperature
No data recorded
Avg Air Temp 61°F
Access
Open
Road Access Hike
Nearest Road Mutau OHV Road
Distance to Road 4.3 mi
Land
Ownership FED
Agency USFS
Designation NF
Unit Los Padres National Forest
Manager USFS
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
Where is Willett Hot Springs located?
Willett Hot Springs is located in Ventura County, California at 2,787 feet elevation, near Fillmore. Coordinates: 34.5756°N, 119.0511°W.
How do I get to Willett Hot Springs?
Willett Hot Springs has Hike road access, with the nearest road being Mutau OHV Road (4.3 mi from the road).
Is Willett Hot Springs free to visit?
Willett Hot Springs has Open access. It is managed by USFS.
Can I camp near Willett Hot Springs?
Yes, Middle Lion Campground is located nearby (6.8 miles away).
Sources: Wikipedia