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South Llano River Water Level

Live gauge height for South Llano River, measured at USGS station S Llano Rv at Flat Rock Ln at Junction, TX (4.9 mi from the nearest mapped ramp).

Current gauge height
2.40 ft
Updated 7 min ago
vs. 30-day average
-0.12 ft
30-day avg: 2.52 ft
Streamflow
104 cfs

30-Day Water Level Trend

2026-08-04Range: 2.412.67 ft2026-09-02

South Llano River is currently near its 30-day average — typical launching conditions at most ramps.

Boat Ramps on South Llano River (3)

See all South Llano River boat ramps →

South Llano River Water Level FAQ

What is the water level of South Llano River today?

The USGS gauge for South Llano River (S Llano Rv at Flat Rock Ln at Junction, TX) currently reads a gauge height of 2.40 feet, near its 30-day average. Readings update throughout the day from USGS instrumentation.

Is South Llano River high or low right now?

Compared with the past 30 days, South Llano River is near its 30-day average.

Where can I launch a boat on South Llano River?

BoatLaunchMap lists 3 boat ramps on South Llano River, each with directions, ratings, and launch details.

Data: U.S. Geological Survey, station 08149900. Gauge height is measured relative to the station datum, not lake depth. Always verify conditions on site before launching.