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Lake Austin water level today

Lake Austin is 96.3% full, 0.56 ft below its conservation pool of 492.8 ft, as of October 18, 2026. Over the past week the lake is up 0.05 ft; compared with a year ago it is up 0.16 ft. That is 0.12 ft above the 10-year average for October 18 (492.12 ft). The lake has been lower on this date in 39 of the 50 years on record.

Water level492.24 ftfeet above mean sea level
Percent full96.3%of conservation storage
vs. full pool-0.56 ftpool 492.8 ft
7-day change+0.05 ft
30-day change-0.04 ft
1-year change+0.16 ft

Past 12 months

491492492493493NovDecJanFebMarAprMayJunJulAugSepOctConservation pool 492.8 ft

Past 12 monthsYear before

Last 30 days

DateLevel (ft)Percent full
Oct 18492.2496.3%
Oct 17492.3096.7%
Oct 16492.2996.7%
Oct 15492.2196.2%
Oct 14492.2096.1%
Oct 13492.2796.5%
Oct 12492.2996.7%
Oct 11492.1996.0%
Oct 10492.1795.9%
Oct 9492.1996.0%
Oct 8492.1996.0%
Oct 7492.1495.7%
Oct 6492.2096.1%
Oct 5492.2896.6%
Oct 4492.2096.1%
Oct 3492.1395.6%
Oct 2492.0495.1%
Oct 1492.2196.2%
Sep 30492.2496.3%
Sep 29492.1996.0%
Sep 28492.2196.2%
Sep 27492.2496.3%
Sep 26492.2196.2%
Sep 25492.1996.0%
Sep 24492.2196.2%
Sep 23492.2096.1%
Sep 22492.3396.9%
Sep 21492.3697.1%
Sep 20492.3296.9%
Sep 19492.2696.5%
Sep 18492.2896.6%

This date in past years

DateLevel (ft)Today vs. then
October 18, 2025492.08+0.16
October 18, 2024492.14+0.10
October 18, 2023492.15+0.09
October 18, 2022492.13+0.11
October 18, 2021492.11+0.13
October 18, 2020492.09+0.15
October 18, 2019492.00+0.24
October 18, 2018492.44-0.20
October 18, 2017492.03+0.21
October 18, 2016492.06+0.18

Records

Highest level on record: 494.92 ft (May 25, 1981). Lowest: 476.02 ft (January 23, 1986). Records in this series start January 1, 1966; early years are monthly readings.

About these numbers

Levels are daily averages in feet above mean sea level, estimated by the Texas Water Development Board from gauges run by TWDB and partner agencies. "Percent full" compares water in conservation storage with the lake's conservation capacity of 23,972 acre-feet; flood storage above the conservation pool is not counted, so a lake can read 100% while still rising. Latest reading: October 18, 2026. Official TWDB page for Lake Austin.

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