Medina River Flow Today
As of October 2, 2026 at 2:15 AM, the Medina River is flowing at 395 cfs at San Antonio, TX — 590% of normal for the date and up 623% in 24 hours. 3 of 4 USGS gauges reported in the last 3 days; flows range from 14 to 395 cfs. ❤ Favorite
Medina River map
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Every gauge, dam and paddle run on the river, one tap each:
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Medina River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At San Antonio, the Medina River is running 395 cfs — 590% of normal, up 623% since yesterday. Along the river, 2 of 3 reporting gauges are above normal (the typical gauge is at 231% of normal).
In the last 24 hours the river is rising at San Antonio (+623%) and Bandera (+108%).
Highest against normal: San Antonio at 590%. Lowest: Macdona at 50%.
How the Medina River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Bandera1,194 ft 29 cfs231%
- Macdona605 ft 14 cfs50%
- San Antonio468 ft 395 cfs590%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Medina River streamgauge, placed by its own percent of normal. The line is the typical gauge (231%).
Medina River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Medina River At Bandera TX
Oct 2, 2:45 AM · USGS 08178880 |
29 cfs | 231% | +108% | 3.80 ft | 9.2 ft below | 1,194 ft |
|
Medina River Near Macdona TX
Oct 2, 2:15 AM · USGS 08180700 |
14 cfs | 50% | +74% | 0.38 ft | · | 605 ft |
|
Medina River Near Von Ormy TX
Last reported May 11 · USGS 08180720 |
52 cfs | · | · | 5.92 ft | · | 583 ft |
|
Medina River At San Antonio TX
Oct 2, 2:15 AM · USGS 08181500 |
395 cfs | 590% | +623% | 4.85 ft | 15.2 ft below | 468 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Dams & reservoirs on the Medina River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Medina River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Medina River
The Medina River is located in south central Texas and stretches for 116 miles. The river was discovered by Alonso De León in 1689 and was named after the Spanish governor of Coahuila y Tejas, Pedro de Medina. The river is fed by numerous springs and tributaries and is a vital source of water for agricultural communities in the region. The river has several dams including the Medina Lake Dam, which was constructed in the 1910s to control flooding and provide a reliable source of water for San Antonio. The river is also popular for recreational activities such as swimming, fishing, and kayaking. The river's ecosystem supports various species of fish, birds, and other wildlife.
Fishing near the Medina River
About the Medina River
How is the Medina River flowing right now?
As of October 2, 2026, the Medina River is flowing at 395 cfs at San Antonio, TX, about 590% of normal for the date. Across its 4 USGS gauges, current flows range from 14 to 395 cfs. Every gauge’s live reading is in the table above.
Is the Medina River running high or low?
The typical gauge on the Medina River is at 231% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
What is flood stage on the Medina River?
The National Weather Service sets flood stages for Bandera (13.0 ft), San Antonio (20.0 ft). The table shows how far each gauge is below its flood stage right now.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.