# San Antonio Hot Spring, New Mexico

San Antonio Hot Spring in New Mexico. 129°F (54°C). Short Walk · Public Land. Rio Arriba County.

- Page: https://www.soakingsprings.com/hot-springs/new-mexico/san-antonio-hot-spring
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at San Antonio Hot Spring?

Only once it cools. The water leaves the ground at 129°F, hotter than any hot tub. It's a short walk from the road. It's on US Forest Service land. We haven't confirmed whether it has a pool or charges a fee.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 129°F (54°C) (USGS record; developed pools are often cooled) |
| pH | 7.7 (Slightly Alkaline) |
| Elevation | 8,369 ft |
| Access | Short Walk · Public Land, 0.2 mi from the nearest road |
| Land | Santa Fe National Forest, US Forest Service |
| County | Rio Arriba County |
| Nearest town | Santa Teresa |
| Coordinates | 35.93800, -106.64600 |
| Best months to soak | January, December, February (largest gap between water and average air temperature) |
| Nearest campground | SAN ANTONIO CAMPGROUND, 3.5 mi |

## About San Antonio Hot Spring

San Antonio Hot Spring is hot water in the Santa Fe National Forest, Rio Arriba County, at well over 8,000 feet. Public access is open. Around 130, so it needs cooling before a soak. Wikipedia calls it a group of geothermal springs, and OpenStreetMap carries the same name. No fee is on record. The nearest-town figure in our data is unreliable, so go by the forest and the campground.

Under a quarter mile from the road. High country with heavy snow, close to five feet a year, and it is wetter than most of the state. San Antonio Campground is three and a half miles off. The Forest Service manages the land, and the designation is national forest. The annual average temperature is cool.

Wikipedia describes San Antonio Hot Springs as a group of geothermal springs in the Santa Fe National Forest in northern New Mexico. OpenStreetMap carries the same name.

Hot; test before getting in, and expect to cool the water one way or another. The winter months rate highest in the climate data, and snow will govern the road. The sample is from 1973. San Antonio Campground is where the camping is.

## Water chemistry

Lab sample from 1973-05-16 (Water Quality Portal).

| Measure | Value |
|---|---|
| pH | 7.7 |
| Calcium | 4.7 mg/L |
| Magnesium | 0.3 mg/L |
| Sodium | 23 mg/L |
| Sulfate | 8.8 mg/L |
| Chloride | 2.3 mg/L |
| Iron | 160 µg/L |

## Nearby

- Nearest city page: [Hot springs near Española](https://www.soakingsprings.com/hot-springs/near/new-mexico/espanola), 33 mi away
- State page: [Hot springs in New Mexico](https://www.soakingsprings.com/hot-springs/new-mexico)
- [Sulphur Springs, NM](https://www.soakingsprings.com/hot-springs/new-mexico/sulphur-springs-3): 189°F source, pH 1.9, TDS 1,730 mg/L, Short Walk, near Santa Teresa, Rio Arriba County
- [San Antonio Warm Spring, NM](https://www.soakingsprings.com/hot-springs/new-mexico/san-antonio-warm-spring): 101°F source, pH 6.7, Roadside, near Santa Teresa, Rio Arriba County
- [Spence Hot Springs, NM](https://www.soakingsprings.com/hot-springs/new-mexico/spence-hot-springs): 100°F source, pH 7.3, TDS 224 mg/L, Short Walk, near Jemez Pueblo, Sandoval County
- [Mccauley Hot Springs, NM](https://www.soakingsprings.com/hot-springs/new-mexico/mccauley-hot-springs): 99°F source, pH 8.0, Short Walk, near Jemez Pueblo, Sandoval County
- [Soda Dam Hot Springs, NM](https://www.soakingsprings.com/hot-springs/new-mexico/soda-dam-hot-springs): 117°F source, pH 7.0, Short Walk, near Jemez Pueblo, Sandoval County
- [Jemez Springs, NM](https://www.soakingsprings.com/hot-springs/new-mexico/jemez-springs): 169°F source, pH 7.3, Roadside, near Jemez Pueblo, Sandoval County

## Questions

**What is the water temperature at San Antonio Hot Spring?**
San Antonio Hot Spring has a water temperature of 129°F (54°C). This is considered a hot spring, well above body temperature.

**Where is San Antonio Hot Spring located?**
San Antonio Hot Spring is located in Rio Arriba County, New Mexico at 8,369 feet elevation, near Santa Teresa. Coordinates: 35.9380°N, 106.6460°W.

**How do I get to San Antonio Hot Spring?**
San Antonio Hot Spring has Short Walk road access (0.2 mi from the road).

**Is San Antonio Hot Spring free to visit?**
San Antonio Hot Spring has Open access. It is managed by US Forest Service.

**Can I camp near San Antonio Hot Spring?**
Yes, San Antonio Campground is located nearby (3.5 miles away).

**What minerals are in the water at San Antonio Hot Spring?**
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride, Iron. The pH is 7.7 (slightly alkaline).

**Is it safe to soak at San Antonio Hot Spring?**
With care. At 129°F San Antonio Hot Spring is hot enough to need short sessions, fifteen to twenty minutes, and plenty of water. Enter slowly and get out if you feel light-headed.

## Sources

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