# Byron Hot Springs, California

Byron Hot Springs in California. 96°F (36°C). Short Walk. Contra Costa County.

- Page: https://www.soakingsprings.com/hot-springs/california/byron-hot-springs
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at Byron Hot Springs?

The water leaves the ground at 96°F, a comfortable soaking temperature. It's a short walk from the road. We haven't confirmed whether it has a pool or charges a fee.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 96°F (36°C) (USGS record; developed pools are often cooled) |
| Elevation | 48 ft |
| Access | Short Walk, 0.5 mi from the nearest road |
| County | Contra Costa County |
| Nearest town | Byron |
| Coordinates | 37.84700, -121.63500 |
| Best months to soak | December, January, February (largest gap between water and average air temperature) |

## About Byron Hot Springs

Byron Hot Springs earned its name a century ago as a resort built over dozens of spring sources in eastern Contra Costa County, a couple of miles from the town of Byron. The recorded temperature is close to blood heat, a warm bath and no more. Whether anyone can get in today is something our records leave open, and so is who owns the ground.

Low ground, barely above sea level, in the dry flat country east of the Bay. Winters bring rain and never snow. The closest road stops about half a mile short of the springs, so count on a walk across flat land to reach them. The landowner is blank in our records, and no campground shows up for this entry at all.

Wikipedia counts 57 separate spring sources in the Byron system. The site was developed into a resort, and in its early 1900s heyday it drew movie stars and well known athletes.

Winter is the pleasant stretch here, roughly December into February, when cool air makes warm water appealing. The walk from the road is short. No campground, no fee information. Before you go, learn whether the old resort property admits visitors. That answer is not in anything we hold.

## Nearby

- Nearest city page: [Hot springs near Byron](https://www.soakingsprings.com/hot-springs/near/california/byron), 0 mi away
- State page: [Hot springs in California](https://www.soakingsprings.com/hot-springs/california)
- [Unnamed thermal spring, CA](https://www.soakingsprings.com/hot-springs/california/unnamed-spring-contra-costa-county): 70°F source, Roadside, near Clayton, Contra Costa County
- [Crohare Spring, CA](https://www.soakingsprings.com/hot-springs/california/crohare-spring): 70°F source, Short Walk, near Livermore, Alameda County
- [Springs, CA](https://www.soakingsprings.com/hot-springs/california/springs-contra-costa-county): Warm, Roadside, near Clayton, Contra Costa County
- [Lone Tree Mineral Spring, CA](https://www.soakingsprings.com/hot-springs/california/lone-tree-mineral-spring): 73°F source, Roadside, near Tracy, San Joaquin County
- [Sulphur Spring, CA](https://www.soakingsprings.com/hot-springs/california/sulphur-spring-2): 75°F source, Roadside, near Waldon, Contra Costa County
- [Alameda Warm Springs, CA](https://www.soakingsprings.com/hot-springs/california/alameda-warm-springs): 80°F source, Short Walk, near Milpitas, Santa Clara County

## Questions

**What is the water temperature at Byron Hot Springs?**
Byron Hot Springs has a water temperature of 96°F (36°C). This is a warm thermal spring.

**Where is Byron Hot Springs located?**
Byron Hot Springs is located in Contra Costa County, California at 48 feet elevation, near Byron. Coordinates: 37.8470°N, 121.6350°W.

**How do I get to Byron Hot Springs?**
Byron Hot Springs has Short Walk road access (0.5 mi from the road).

## Sources

- USGS thermal springs records, Water Quality Portal lab analyses, OpenStreetMap, Wikipedia/Wikidata, NOAA climate normals
- https://en.wikipedia.org/wiki/Byron_Hot_Springs