River gauges›Texas
RIVER GAUGE · SAN MARCOS RIVER

San Marcos River at Luling

Caldwell County, Texas

Water level3.67 ft
Flow85 cfs
Last readingSep 16, 2026, 4:45 PM UTC (last recorded)
Action11 ft
Minor flood20 ft
Moderate flood24 ft
Major flood30 ft

The past week

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What floods at each level

Highest crests on record

DateLevelFlow
Oct 18, 199841.85 ft206,000 cfs
Dec 31, 186840.4 ft—
May 28, 192937.1 ft—

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