Lake Sam Rayburn lake and shoreline

Lake Sam Rayburn Water Level

Texas

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Lake Sam Rayburn

Lake Sam Rayburn is currently 9.7 feet below full pool, with a water-surface elevation of 154.3 feet.

154.35 ft · Updated 5 hours ago · NOAA / National Weather Service — Advanced Hydrologic Prediction Service

Current level

154.35ft

−9.65 ft vs full pool

Low

Vs full pool

Since last reading

Down 0.05 ft

Previous readingSep 23154.41 ft

7-day change

Down 0.29 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 1.12 ft

31 daily readings in the last 30 days

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Water Level History

Current
154.35 ft
24h
-0.05 ft
7d
-0.29 ft
30d
-1.12 ft

Elevation (ft) NGVD29 · MSL

Reference line is designed full pool.

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Lake Level Context

Level remains below the full pool

Lake Sam Rayburn is currently 154.35 ft, 9.65 ft below its full pool. The lake has fallen 0.29 ft over the past 7 days and 1.12 ft over the past 30 days.

Lake Sam Rayburn Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

9.65 ft below full pool

Current level
154.35 ft
Full pool
164 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
NOAA / NWS

Reference levels

  • Full pool164 ft
  • Flood stage173 ft

Watershed drought

Abnormally Dry

21% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Jasper County, TX

Abnormally Dry

Abnormally Dry. The surrounding county is abnormally dry, which is not official drought.. Trend: Stable compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

Yes

21% of the watershed is currently classified as official drought (D1+).

U.S. Drought Monitor · map date Sep 22, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Jasper County, TX

Daily level summary

DateLevelChange
Sep 24, 2026154.36-0.05
Sep 23, 2026154.41-0.04
Sep 22, 2026154.45-0.04
Sep 21, 2026154.49-0.03
Sep 20, 2026154.52-0.04
Sep 19, 2026154.56-0.04
Sep 18, 2026154.6-0.05

Common questions about Lake Sam Rayburn’s water level

  • The current water level at Lake Sam Rayburn is 154.35 ft (updated 5 hours ago). You can track the Lake Sam Rayburn lake level on the interactive chart and daily history above.

  • Full pool for Lake Sam Rayburn is 164 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Lake Sam Rayburn lake level is falling — falling about 0.29 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Lake Sam Rayburn is currently 9.65 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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