Lake Sweetwater Water Level
Texas · updated daily from the Texas Water Development Board
18.5% full
Lake Sweetwater is very low at 2091.61 ft and falling (-0.26 ft in the last 7 days).
24.89 ft below full pool of 2116.50 ft · change since yesterday -0.04 ft
Reading as of 2026-08-15 · higher than 27% of August readings on record
Where Lake Sweetwater sits historically
Today's level compared with every reading in our 27.4-year record for this lake.
Since yesterday
-0.04 ft
7-day change
-0.26 ft
30-day change
-0.85 ft
1-year change
-5.61 ft
Full pool
2116.5 ft
Last 30 days
Last 12 months
Full history (27.4 years)
Lake Sweetwater records and averages
| Current level | 2091.61 ft |
|---|---|
| Percent full | 18.5% |
| Storage | 2,275 acre-feet |
| Record high | 2116.97 ft (2019-05-08) |
| Record low | 2077.89 ft (2007-08-01) |
| Average of all readings | 2099.56 ft |
| Data span | 27.4 years (9,895 readings) |
Frequently asked questions
Is Lake Sweetwater full right now?
Lake Sweetwater is at 18.5% of conservation capacity as of 2026-08-15, which we classify as very low.Over the past 30 days the level has fallen 0.85 ft.
What is the water level at Lake Sweetwater today?
The most recent reading is 2091.61 ft (2026-08-15), sourced from the Texas Water Development Board. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Lake Sweetwater has ever been?
The highest level in our records is 2116.97 ft on 2019-05-08. The lowest is 2077.89 ft on 2007-08-01. Our record covers about 27.4 years of readings.
Is Lake Sweetwater low for this time of year?
Compared with every August in our records, the current level is higher than 27% of them — very low. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Lake Sweetwater low right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Lake Sweetwater has fallen 0.85 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.
How much has Lake Sweetwater changed over the past year?
The level is -5.61 ft compared with this date last year (2091.61 ft today). The full-history chart above covers 27.4 years, with a record high of 2116.97 ft and a record low of 2077.89 ft.
Nearby lakes in Texas
Source: the Texas Water Development Board. Readings are provisional and subject to revision by the publishing agency. All Texas lake levels.