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Sam Rayburn Reservoir water level today

153.36 ft above sea level (the reading for October 19, 2026). The lake is 62.2% full, 11.04 ft below full pool (164.40 ft). Sam Rayburn Reservoir is falling slowly: down 0.32 ft in the past 7 days and down 1.21 ft over 30 days.

Texas Water Development Board publishes one reading per day for Sam Rayburn Reservoir; today's value appears once the agency posts it, usually the next morning.

Level now153.36 ft
Percent full62.2%
vs full pool (164.4)−11.04 ft
Past 24 hours−0.05 ft
Past 7 days−0.32 ft
Past 30 days−1.21 ft
vs 1 year ago−2.78 ft

Sam Rayburn Reservoir level over the last 12 months

153154155156157 Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26
Daily elevation in feet, last 12 months; full pool (164.4 ft) is 7.5 ft above the highest point shown.

12-month low: 153.36 ft (October 19, 2026). High: 156.92 ft (July 4, 2026). Swing: 3.56 ft.

Daily Sam Rayburn Reservoir levels, last 30 days

DateElevation (ft)Change
Oct 19, 2026153.36−0.05 ft
Oct 18, 2026153.41−0.05 ft
Oct 17, 2026153.46−0.03 ft
Oct 16, 2026153.49−0.04 ft
Oct 15, 2026153.53−0.05 ft
Oct 14, 2026153.58−0.03 ft
Oct 13, 2026153.61−0.07 ft
Oct 12, 2026153.68−0.03 ft
Oct 11, 2026153.71−0.04 ft
Oct 10, 2026153.75−0.05 ft
Oct 9, 2026153.80−0.04 ft
Oct 8, 2026153.84−0.04 ft
Oct 7, 2026153.88−0.05 ft
Oct 6, 2026153.93−0.03 ft
Oct 5, 2026153.96−0.03 ft
Oct 4, 2026153.99−0.03 ft
Oct 3, 2026154.02−0.02 ft
Oct 2, 2026154.04−0.03 ft
Oct 1, 2026154.07−0.05 ft
Sep 30, 2026154.12−0.05 ft
Sep 29, 2026154.17−0.04 ft
Sep 28, 2026154.21−0.04 ft
Sep 27, 2026154.25−0.04 ft
Sep 26, 2026154.29−0.05 ft
Sep 25, 2026154.34−0.04 ft
Sep 24, 2026154.38−0.04 ft
Sep 23, 2026154.42−0.04 ft
Sep 22, 2026154.46−0.03 ft
Sep 21, 2026154.49−0.04 ft
Sep 20, 2026154.53−0.04 ft

Monthly average levels

MonthAverageLowHigh
Nov 2025155.33155.09155.74
Dec 2025155.13155.10155.18
Jan 2026155.02154.96155.08
Feb 2026155.18154.95155.43
Mar 2026155.82155.44156.21
Apr 2026156.26156.18156.31
May 2026156.27156.20156.39
Jun 2026156.57156.40156.89
Jul 2026156.84156.64156.92
Aug 2026155.93155.21156.61
Sep 2026154.69154.12155.16
Oct 2026 *153.74153.36154.07

* partial month or year.

Sam Rayburn Reservoir year by year

YearLowHighAverage
2026 *153.36 Oct 19156.92 Jul 6155.71
2025155.09 Nov 24166.96 Mar 1161.10
2024156.91 Jan 22172.43 Jun 18163.77
2023 *157.07 Dec 31158.81 Oct 16157.83

Sam Rayburn Reservoir on this date in past years

YearLevel on this dateToday vs then
2025156.14 ft−2.78 ft
2024162.44 ft−9.08 ft
2023158.65 ft−5.29 ft

Highest and lowest levels on record

TWDB records for Sam Rayburn Reservoir go back to 1988. The lowest level in that record is 0.00 ft (June 21, 1988) and the highest is 175.22 ft (June 3, 2021). Today the lake is 153.36 ft above its record low. At full conservation pool it holds 2,857,077 acre-feet and covers about 82,094 acres.

Is Sam Rayburn Reservoir full?

Sam Rayburn Reservoir is 62.2% full by conservation storage, measured against its top of conservation pool at 164.40 ft. It would need to rise 11.04 ft to be full.

Is Sam Rayburn Reservoir rising or falling?

Sam Rayburn Reservoir is falling slowly: down 0.32 ft in the past 7 days and down 1.21 ft over 30 days. In the latest day it moved −0.05 ft.

How does Sam Rayburn Reservoir compare with last year?

Compared with the same date last year, the lake is 2.78 ft lower (70.6% full then, 62.2% now). Two years ago on this date it stood at 162.44 ft.

Data source

Texas Water Development Board (Water Data for Texas), gauge SamRayburn; readings since Oct 16, 2023. Official source · how we collect it.

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