San Antonio River
Texas. Streamflow and water-temperature readings from USGS gauges. Running 410 cfs as of Aug 1, 2026, 6:15 PM UTC.
Latest Reading
410
cubic feet / second
88.3°F
water temperature (31.3°C)
10
USGS gauges
Flow measured Aug 1, 2026, 6:15 PM UTC at gauge 08188570. Temperature measured Aug 1, 2026, 6:30 PM UTC at gauge 08181800. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.
USGS Gauges on San Antonio River
| Gauge | Station | Water temp? |
|---|---|---|
| 08178000 | San Antonio Rv at San Antonio, TX | — |
| 08178050 | San Antonio Rv at Mitchell St, San Antonio, TX | — |
| 08178565 | San Antonio Rv at Loop 410, San Antonio, TX | — |
| 08181725 | San Antonio Rv nr Braunig Lk nr Elmendorf, TX | — |
| 08181800 | San Antonio Rv nr Elmendorf, TX | Yes |
| 08183200 | San Antonio Rv nr Floresville, TX | — |
| 08183500 | San Antonio Rv nr Falls City, TX | — |
| 08188060 | San Antonio Rv at SH 72 nr Runge, TX | Yes |
| 08188500 | San Antonio Rv at Goliad, TX | Yes |
| 08188570 | San Antonio Rv nr McFaddin, TX | — |
Conditions: USGS NWIS (public domain).