Waterlands
San Marcos Rv River
USGS · 08170500
SAN MARCOS RV RIVER
USGS · 08170500LIVE

San Marcos Rv at San Marcos, TX

SAN MARCOS, TX29.8891°N, -97.9342°W Updated 22 hr ago
FLOW RATE
110cfs
GAUGE HT
3.72ft
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
110cfs 40.6% vs avg
Optimal band: 74–100 cfs
PERIOD HIGH
133cfs
PERIOD LOW
72cfs
RUNNABLE
80%
last 1 year in band

Gauge Height

3.72ft
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Your History · San Marcos Rv at San Marcos, TX

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Station Location

29.8891, -97.9342
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DATA · USGS · NOAA · NWSUPDATED 2026-09-01 00:00 UTC
Site #08170500·USGS

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