Big Cypress Bayou Water Level

Q: What is the water level of Big Cypress Bayou today?

Big Cypress Bayou water levels are measured at USGS gauge Black Cypress Bayou at Jefferson, TX; the current gauge height updates on this page throughout the day, alongside a 30-day trend.

Q: Is Big Cypress Bayou high or low right now?

This page compares the current reading against the trailing 30-day average and range for Big Cypress Bayou — above the average means higher water than usual, below means lower.

Live gauge height for Big Cypress Bayou, measured at USGS station Black Cypress Bayou at Jefferson, TX (2.0 mi from the nearest mapped ramp).

Current gauge height

3.63 ft

Updated 47 min ago

vs. 30-day average

-0.06 ft

30-day avg: 3.69 ft

Streamflow

1 cfs

30-Day Water Level Trend

2026-08-04Range: 3.51–3.89 ft2026-09-01

Big Cypress Bayou is currently near its 30-day average — typical launching conditions at most ramps.

Boat Ramps on Big Cypress Bayou (3)

See all Big Cypress Bayou boat ramps →

Big Cypress Bayou Water Level FAQ

What is the water level of Big Cypress Bayou today?

The USGS gauge for Big Cypress Bayou (Black Cypress Bayou at Jefferson, TX) currently reads a gauge height of 3.63 feet, near its 30-day average. Readings update throughout the day from USGS instrumentation.

Is Big Cypress Bayou high or low right now?

Compared with the past 30 days, Big Cypress Bayou is near its 30-day average.

Where can I launch a boat on Big Cypress Bayou?

BoatLaunchMap lists 3 boat ramps on Big Cypress Bayou, each with directions, ratings, and launch details.

Data: U.S. Geological Survey, station 07346045. Gauge height is measured relative to the station datum, not lake depth. Always verify conditions on site before launching.