Somerville Lake Water Level
Texas · updated daily from the Texas Water Development Board
99.6% full
Somerville Lake is near full at 237.95 ft and falling (-0.24 ft in the last 7 days).
At full pool (238.00 ft) · change since yesterday -0.02 ft
Reading as of 2026-08-15 · higher than 71% of August readings on record
Where Somerville Lake sits historically
Today's level compared with every reading in our 30.9-year record for this lake.
Since yesterday
-0.02 ft
7-day change
-0.24 ft
30-day change
-2.57 ft
1-year change
-0.01 ft
Full pool
238.0 ft
Last 30 days
Last 12 months
Full history (30.9 years)
Somerville Lake records and averages
| Current level | 237.95 ft |
|---|---|
| Percent full | 99.6% |
| Storage | 149,730 acre-feet |
| Record high | 259.77 ft (2016-05-29) |
| Record low | 227.61 ft (2011-12-13) |
| Average of all readings | 237.92 ft |
| Data span | 30.9 years (11,159 readings) |
Frequently asked questions
Is Somerville Lake full right now?
Somerville Lake is at 99.6% of conservation capacity as of 2026-08-15, which we classify as near full.Over the past 30 days the level has fallen 2.57 ft.
What is the water level at Somerville Lake today?
The most recent reading is 237.95 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 Somerville Lake has ever been?
The highest level in our records is 259.77 ft on 2016-05-29. The lowest is 227.61 ft on 2011-12-13. Our record covers about 30.9 years of readings.
Is Somerville Lake low for this time of year?
Compared with every August in our records, the current level is higher than 71% of them — near full. 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 Somerville Lake 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. Somerville Lake has fallen 2.57 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.
How much has Somerville Lake changed over the past year?
The level is -0.01 ft compared with this date last year (237.95 ft today). The full-history chart above covers 30.9 years, with a record high of 259.77 ft and a record low of 227.61 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.