Water level
Lake Sonoma water level
Lake Sonoma is at 448.28 ft as of Sep 9, 2026. Live readings, trend, history and what the level means for swimming and boat ramps.
Recent readings
Daily values from CDEC - California Data Exchange Center (DWR).
| Date | Elevation (ft) | Change |
|---|---|---|
| 2026-9-8 0 | 448.28 | -0.10 |
| 2026-9-7 0 | 448.38 | -0.09 |
| 2026-9-6 0 | 448.47 | -0.08 |
| 2026-9-5 0 | 448.55 | -0.09 |
| 2026-9-4 0 | 448.64 | -0.09 |
| 2026-9-3 0 | 448.73 | -0.06 |
| 2026-9-2 0 | 448.79 | -0.08 |
| 2026-9-1 0 | 448.87 |
What this level means
The level comes from CDEC - California Data Exchange Center (DWR). Water level decides what is usable on the shoreline, from beach width to ramp access.
How this reading is taken
CDEC - California Data Exchange Center (DWR) measures the water surface and publishes the value continuously. This page stores the latest reading at build time and refreshes the record daily, so the figure above is a real measurement rather than a model or an estimate.
No operating agency publishes a full pool elevation for Lake Sonoma that we can cite, so this page shows the reading and its trend without a percentage.
Elevations are given in feet above the gauge datum used by the operating agency. Two lakes are only comparable with each other through how full they are, not through their raw elevation, because each dam sits at a different height.
Water level questions
What is the current water level at Lake Sonoma?
The latest reading is 448.28 ft, from CDEC - California Data Exchange Center (DWR).
Sources
Every figure on this page comes from one of these public sources.