Castaic Lake lake and shoreline

Castaic Lake Water Level

California

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Castaic Lake

Castaic Lake is currently 18.5 feet below full pool, with a water-surface elevation of 1496.5 feet.

1496.53 ft · Updated 1 day ago · California Data Exchange Center

Current level

1,496.53ft

−18.47 ft vs full pool

Low

Vs full pool

Since last reading

Down 0.61 ft

Previous readingOct 241,497.14 ft

7-day change

Down 3.98 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 11.56 ft

30 daily readings in the last 30 days

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Water Level History

Current
1496.53 ft
24h
-0.61 ft
7d
-3.98 ft
30d
-11.56 ft

Elevation (ft) MSL

Reference line is designed full pool.

Water Temperature

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Lake Level Context

Level remains below the full pool

Castaic Lake is currently 1496.53 ft, 18.47 ft below its full pool. The lake has fallen 3.98 ft over the past 7 days and 11.56 ft over the past 30 days.

Castaic Lake Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

18.47 ft below full pool

Current level
1,496.53 ft
Full pool
1,515 ft
DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
Not available
Elevation reference
MSL
Source
California Data Exchange Center

Reference levels

  • Full pool1,515 ft

Surrounding county drought

No Drought

Dominant category Abnormally Dry (D0); not counted as official drought.

Severity

NoneExtreme
Trend
Stable

Surrounding county drought

Los Angeles County, CA

No Drought

No Drought. No USDM drought categories are reported for Los Angeles County, CA. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Stable compared with last week. Official drought (D1–D4) no

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought (D1–D4)

No

Abnormally Dry (D0) is present in the surrounding county, but D0 is not counted as official drought (D1–D4).

U.S. Drought Monitor · map date Oct 20, 2026. Updated weekly. Official drought means U.S. Drought Monitor categories D1–D4 (Moderate through Exceptional). Abnormally Dry (D0) is not counted as official drought. droughtmonitor.unl.eduView drought map for Los Angeles County, CA

Daily level summary

DateLevelChange
Oct 25, 20261,496.53-0.61
Oct 24, 20261,497.14-0.54
Oct 23, 20261,497.68-0.55
Oct 22, 20261,498.23-0.58
Oct 21, 20261,498.81-0.44
Oct 20, 20261,499.25-0.58
Oct 19, 20261,499.83-0.68

Common questions about Castaic Lake’s water level

  • The current water level at Castaic Lake is 1,496.53 ft (updated 1 day ago). You can track the Castaic Lake lake level on the interactive chart and daily history above.

  • Full pool for Castaic Lake is 1,515 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Castaic Lake lake level is falling — falling about 3.98 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Castaic Lake is currently 18.47 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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