Reservoir · California · United States · CDEC
CAMANCHE RESERVOIR
84.7% full
Capacity
514.36 hm³
Volume stored
436 hm³
Coordinates
38.225°N, 121.021°W
Last updated
2026-09-16
Current fill
84.7%vs 7 days ago
-0.6%losing
vs 1 year ago
+10.3%year-over-year
7-day trend
→stable
Data source: CDEC — California Dept of Water Resources — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-09-16.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.225, -121.021 · Open in Google Maps
About CAMANCHE RESERVOIR
As of September 16, 2026, CAMANCHE RESERVOIR is filled to 84.7% of its total capacity, holding roughly 436 hm³ of water out of a maximum 514 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.6 pts), and it is 10.3 points above its level on the same date a year earlier.
Across the readings we hold for CAMANCHE RESERVOIR — 1815 data points between September 19, 2021 and September 16, 2026 — the level has ranged from a low of 38.5% (December 17, 2021) to a high of 96.7% (May 28, 2026). On average the reservoir is fullest around July and at its lowest around December.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 38.225°N, 121.021°W.
Key facts
- Current fill level
- 84.7%
- Water stored
- 436 hm³
- Total capacity
- 514 hm³
- 7-day change
- ▼ 0.6 pts
- Year-on-year
- ▲ 10.3 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.225°N, 121.021°W
- Last updated
- September 16, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 16 Sep 2026 | 84.7% | 435 |
| 15 Sep 2026 | 84.7% | 436 |
| 14 Sep 2026 | 84.8% | 436 |
| 13 Sep 2026 | 84.9% | 437 |
| 12 Sep 2026 | 85.1% | 438 |
| 11 Sep 2026 | 85.2% | 438 |
| 10 Sep 2026 | 85.2% | 438 |
| 9 Sep 2026 | 85.3% | 439 |
| 8 Sep 2026 | 85.3% | 439 |
| 7 Sep 2026 | 85.4% | 439 |
| 6 Sep 2026 | 85.5% | 440 |
| 5 Sep 2026 | 85.6% | 440 |