San Antonio River near Elmendorf water level
River gauge, San Antonio River, Texas, United States
Right now
Normal for mid-October
Water level
- Flow
- 114 cfs
- Water temperature
- 76 °F
History
20252026
What this means
Water levels are unremarkable at San Antonio River near Elmendorf, where the gauge shows 9.49 ft.
The median for mid-October is 11.24 ft, based on 38 years of readings, so the river stage is 1.74 ft below typical. It is 25.51 ft below the flood stage of 35.00 ft. On the same day last year the reading was 9.62 ft, a difference of −0.13 ft.
It has barely moved over the past 24 hours. The 30-day range is 9.04 ft – 23.93 ft.
Fall is often low-water season on rivers, until steadier rain returns. The water temperature at the gauge is 76 °F.
Compared with 38 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 11.24 ft1.74 ft below the median for this date
- Normal for this date
- 7.67 ft – 16.29 ft8 years in 10 fall in this range (38 years of records)
- Same day last year
- 9.62 ft−0.13 ft
- Lowest and highest in 30 days
- 9.04 ft – 23.93 ft
- Lowest and highest in 12 months
- 8.99 ft – 29.61 ft
- Highest on record
- 64.20 ftOctober 18, 1998
Paddling and fishing conditions
Most paddlers and anglers will find the river in good shape at this stage.
For reference, flood stage is 35.00 ft.
What happens at each level
- 60.00 ft
- Downstream in Wilson county people cut off by numerous flooded Farm to Market roads. Numerous homes are flooded in Wilson county as well.
- 52.00 ft
- Widespread major flooding damages crops and pastureland. Roads and bridges are flooded and dangerous. Oil field pump jacks and irrigation pumps are flooded and damaged. Many livestock can be cut off and drowned.
- 48.00 ft
- Major flooding near Elmendorf to above Goliad State Park isolates livestock, damages crops and roads, floods oil field tank batteries, pump jacks, irrigation pumps, and any equipment in the flood plain. Flooding is widespread.
- 45.00 ft
- Moderate lowland flooding inundates crop and pastureland below San Antonio to below Floresville. Roads and bridges in the flood plain are flooded. Pump jacks and oil field tank batteries flood.
- 43.00 ft
- Moderate lowland flooding inundates and damages crop and pastureland below San Antonio to below Floresville. Numerous roads and bridges are flooded. Oil well pump jacks and irrigation pumps are flooded and damaged.
- 39.00 ft
- Moderate lowland flooding damages crops and floods pastureland below San Antonio to below Floresville. Secondary roads and low bridges, irrigation pumps, oil field pump jacks and tank batteries flood. Livestock are cut off in low areas.
- 35.00 ft
- Minor lowland flooding inundates crop and pastureland below San Antonio to below Floresville.
- 33.00 ft
- Overbank conditions may cut off livestock in low areas.
- 9.49 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
Chance of at least minor flooding in October to December: 32 %.
| Rank | Level | Date |
|---|---|---|
| 1 | 64.20 ft | October 18, 1998 |
| 2 | 63.16 ft | July 6, 2002 |
| 3 | 61.00 ft | September 27, 1946 |
| 4 | 53.06 ft | June 5, 1986 |
| 5 | 53.00 ft | June 28, 1913 |
| 6 | 52.34 ft | May 26, 2013 |
| 7 | 50.76 ft | November 23, 2004 |
| 8 | 44.99 ft | May 24, 2015 |
| 9 | 44.82 ft | June 3, 2016 |
| 10 | 44.55 ft | July 26, 2007 |
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Other gauges on the San Antonio River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| San Antonio River at San AntonioRiver gauge, San Antonio River | 3.93 ft | Normal | +0.04 ft | 15 mi |
| San Antonio River at Mitchell St, San AntonioRiver gauge, San Antonio River | 4.27 ft | Normal | +0.02 ft | 14 mi |
| San Antonio River at Loop 410, San AntonioRiver gauge, San Antonio River | 3.67 ft | Low | −0.02 ft | 9 mi |
| San Antonio River near Braunig Lake near ElmendorfRiver gauge, San Antonio River | 10.87 ft | No reference yet | +0.08 ft | 3.0 mi |
| San Antonio River near FloresvilleRiver gauge, San Antonio River | 3.63 ft | Very low | −0.02 ft | 13 mi |
| San Antonio River near Falls CityRiver gauge, San Antonio River | 0.82 ft | Very low | −0.01 ft | 26 mi |
| San Antonio River at SH 72 near RungeRiver gauge, San Antonio River | 10.14 ft | Normal | −0.07 ft | 45 mi |
| San Antonio River at GoliadRiver gauge, San Antonio River | 3.58 ft | Low | −0.29 ft | 71 mi |
| San Antonio River near McFaddinRiver gauge, San Antonio River | 15.22 ft | No reference yet | +0.11 ft | 93 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Medina River at San AntonioRiver gauge, Medina River | 2.82 ft | Very low | −0.06 ft | 9 mi |
| Salado Creek at Loop 13, San AntonioRiver gauge, Salado Creek | 5.20 ft | Low | +0.02 ft | 10 mi |
| Medina River near SomersetRiver gauge, Medina River | 4.04 ft | Low | ±0 | 14 mi |
| Leon Creek at IH 35, San AntonioRiver gauge, Leon Creek | 2.26 ft | Normal | +0.04 ft | 16 mi |
| San Pedro Creek at Furnish St, San AntonioRiver gauge, San Pedro Creek | 0.0 cfs | Very low | ±0 | 16 mi |
| Cibolo Creek at Sutherland SpringsRiver gauge, Cibolo Creek | 6.41 ft | Low | +0.03 ft | 19 mi |
Questions and answers
Is the San Antonio River near Elmendorf higher than last year?
No, it is 0.13 ft lower than on the same day last year, when the reading was 9.62 ft.
What is flood stage for the San Antonio River near Elmendorf?
The official flood stage is 35.00 ft. The level is currently 25.51 ft below it.
What is a normal level for the San Antonio River near Elmendorf in mid-October?
The median for mid-October is 11.24 ft. In 8 years out of 10 the reading falls between 7.67 ft and 16.29 ft, based on 38 years of records.
Is gage height the same as water depth?
No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.
What is the water level of San Antonio River near Elmendorf today?
On Oct 19, 2026, 11:30 AM CDT, the water level was 9.49 ft. Steady over the last 24 hours.
Is San Antonio River near Elmendorf rising or falling?
Steady over the last 24 hours. Down 0.50 ft over the last 7 days.
Is the level of San Antonio River near Elmendorf normal?
Normal for mid-October. Compared with 38 years of daily readings for this time of year.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:08181800(Agency page)- Coordinates
29.22219, -98.35585(WGS84)- Vertical datum
- NGVD29
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 9.49 ft | 2026-10-19 16:30 | Provisional |
| Flow | 114 cfs | 2026-10-19 16:30 | Provisional |
| Water temperature | 76 °F | 2026-10-19 16:30 | Provisional |
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How to cite
U.S. Geological Survey: San Antonio River near Elmendorf (usgs:08181800). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/texas/san-antonio-river-near-elmendorf
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer