Lake levels › California

Lake San Antonio water level today

Lower than usual for this time of year

737.97ft

feet above sea level ·

vs normal for Oct 9−17.5 ft
24 hours−0.01 ft
7 days−0.4 ft
30 days−2.5 ft

Is Lake San Antonio low right now?

Lake San Antonio was at 737.97 ft on October 9, 2026. That is 17.55 ft below the typical level for October 9 — lower than in 9 of 10 past years. Over the past week the lake has been falling about 0.06 ft a day.

Last 12 monthsDaily level Normal range (10–90% of past years)
727738750761772NovDecJanFebMarAprMayJunJulAugSepOct

Lake San Antonio on Oct 9 in past years

2025742.7−4.7
2024760.9−22.9
2023755.6−17.6

Level on the same date each year, and how today compares.

Daily levels, last two weeks

DateLevel (ft)Change
Oct 9737.97−0.01
Oct 8737.98−0.02
Oct 7738.00−0.02
Oct 6738.02−0.06
Oct 5738.08−0.13
Oct 4738.21−0.10
Oct 3738.31−0.11
Oct 2738.42−0.10
Oct 1738.52−0.11
Sep 30738.63−0.12
Sep 29738.75−0.11
Sep 28738.86−0.14
Sep 27739.00−0.13
Sep 26739.13−0.13

Daily means of the operator's readings (midnight to midnight, local time).

About Lake San Antonio

10-year range
730.1 ft (February 8, 2023) to 769.1 ft (May 18, 2024)
Data
California Data Exchange Center (DWR) — station ATN
Datum
ft (CDEC; typically NGVD29/NAVD88 per station)

Lakes near Lake San Antonio

Questions

Is Lake San Antonio low right now?

Lake San Antonio was at 737.97 ft on October 9, 2026. That is 17.55 ft below the typical level for October 9 — lower than in 9 of 10 past years. Over the past week the lake has been falling about 0.06 ft a day.

How often is the Lake San Antonio level updated?

The operator reports every 15 minutes to an hour. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

California Data Exchange Center (DWR) (station ATN). Readings are provisional and can be revised.