Lake Austin Water Level
Texas · updated daily from the Texas Water Development Board
96.0% full
Lake Austin is near full at 492.19 ft and steady (+0.04 ft in the last 7 days).
0.61 ft below full pool of 492.80 ft · change since yesterday +0.03 ft
Reading as of 2026-08-15 · higher than 53% of August readings on record
Where Lake Austin sits historically
Today's level compared with every reading in our 60.6-year record for this lake.
Since yesterday
+0.03 ft
7-day change
+0.04 ft
30-day change
+0.04 ft
1-year change
+0.05 ft
Full pool
492.8 ft
Last 30 days
Last 12 months
Full history (60.6 years)
Lake Austin records and averages
| Current level | 492.19 ft |
|---|---|
| Percent full | 96.0% |
| Storage | 23,628 acre-feet |
| Record high | 494.92 ft (1981-05-25) |
| Record low | 476.02 ft (1986-01-23) |
| Average of all readings | 491.73 ft |
| Data span | 60.6 years (18,570 readings) |
Frequently asked questions
Is Lake Austin full right now?
Lake Austin is at 96.0% of conservation capacity as of 2026-08-15, which we classify as near full.Over the past 30 days the level has risen 0.04 ft.
What is the water level at Lake Austin today?
The most recent reading is 492.19 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 Austin has ever been?
The highest level in our records is 494.92 ft on 1981-05-25. The lowest is 476.02 ft on 1986-01-23. Our record covers about 60.6 years of readings.
Is Lake Austin low for this time of year?
Compared with every August in our records, the current level is higher than 53% 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 Lake Austin changing 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 Austin has risen 0.04 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 Austin changed over the past year?
The level is +0.05 ft compared with this date last year (492.19 ft today). The full-history chart above covers 60.6 years, with a record high of 494.92 ft and a record low of 476.02 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.