San Antonio Rv at San Antonio, TX

USGS Site No: 08178000San Antonio River • Bexar County, TX

San Antonio Rv at San Antonio, TX on the San Antonio River is currently at 33 cfs (Normal — 59th percentile for this date) . Gage height: 4.09 ft.

Reading from

33
CFS Discharge
4.09
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 10
25th Low threshold 16
50th (Median) Normal (median) 24
75th High threshold 48 Today: 33 cfs
95th Very High threshold 370

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

348 174 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 30 4.03
May 27, 2026 34 4.12
May 26, 2026 66 4.30
May 25, 2026 21 3.79
May 24, 2026 25 3.90
May 23, 2026 36 4.18
May 22, 2026 35 4.15
May 21, 2026 67 4.30
May 20, 2026 44 4.32
May 19, 2026 34 4.08
May 18, 2026 29 4.01
May 17, 2026 30 4.02
May 16, 2026 29 4.01
May 15, 2026 31 4.05
Apr 20, 2026 54 4.58
Apr 19, 2026 40 4.27
Apr 18, 2026 30 4.03
Apr 17, 2026 29 4.00
Apr 16, 2026 20 3.75
Apr 15, 2026 18 3.69
Apr 14, 2026 19 3.69
Apr 13, 2026 22 3.77
Apr 12, 2026 35 4.12
Apr 11, 2026 26 3.95
Apr 10, 2026 27 3.96
Apr 9, 2026 27 3.96
Apr 8, 2026 26 3.94
Apr 7, 2026 27 3.97
Apr 6, 2026 30 4.03
Apr 5, 2026 29 3.98

Station Information

USGS Site No
08178000
State
TX
County
Bexar County
Coordinates
29.4097, -98.4950
Drainage Area
42 mi²
Datum (ft)
603.1
HUC Code
12100301
View on USGS NWIS →

Recent Extremes

Max discharge
165 cfs
Jun 12, 2025
Min discharge
6 cfs
Oct 17, 2025

Computed from the local daily-values archive.