LakeLevelIs San Antonio Reservoir low right now?
San Antonio Reservoir was at 457.51 ft on October 9, 2026. That is 4.66 ft below the typical level for October 9 — lower than in 9 of 10 past years. Over the past week the lake has been steady.
San Antonio Reservoir on Oct 9 in past years
2025464.6−7.0
2024465.6−8.1
2023467.7−10.2
2022457.1+0.4
2021457.8−0.3
2020460.9−3.4
Daily levels, last two weeks
| Date | Level (ft) | Change |
|---|---|---|
| Oct 9 | 457.51 | −0.03 |
| Oct 8 | 457.54 | −0.01 |
| Oct 7 | 457.55 | −0.01 |
| Oct 6 | 457.56 | −0.02 |
| Oct 5 | 457.58 | −0.03 |
| Oct 4 | 457.61 | −0.01 |
| Oct 3 | 457.62 | ±0.00 |
| Oct 2 | 457.62 | −0.01 |
| Oct 1 | 457.63 | −0.02 |
| Sep 30 | 457.65 | −0.01 |
| Sep 29 | 457.66 | −0.01 |
| Sep 28 | 457.67 | −0.01 |
| Sep 27 | 457.68 | −0.03 |
| Sep 26 | 457.71 | −0.02 |
About San Antonio Reservoir
- 10-year range
- 448.7 ft (March 14, 2022) to 472.5 ft (January 16, 2023)
- Data
- California Data Exchange Center (DWR) — station SAT
- Datum
- ft (CDEC; typically NGVD29/NAVD88 per station)
Lakes near San Antonio Reservoir
- Calaveras ReservoirCalifornia · 6 mi 726.5 ft −0.6 wkNormal for this time of year
- Del Valle ReservoirCalifornia · 6 mi 686.7 ft −1.6 wkLower than usual for this time of year
- Marsh Creek ReservoirCalifornia · 23 mi 169.3 ft ±0.0 wkHigher than usual for this time of year
- Guadalupe ReservoirCalifornia · 26 mi 574.6 ft −0.8 wkLower than usual for this time of year
- Lexington ReservoirCalifornia · 27 mi 620.9 ft −1.0 wkNormal for this time of year
- Lower Crystal Springs ReservoirCalifornia · 28 mi 271.7 ft +0.1 wkLower than usual for this time of year
Questions
Is San Antonio Reservoir low right now?
San Antonio Reservoir was at 457.51 ft on October 9, 2026. That is 4.66 ft below the typical level for October 9 — lower than in 9 of 10 past years. Over the past week the lake has been steady.
How often is the San Antonio Reservoir 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 SAT). Readings are provisional and can be revised.