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The linked gauge for Calaveras Reservoir reported 726.53 ft at its latest stored observation on Oct 10, 2026, on a falling 30-day trend (-1.77 ft).
Local gage height: 726.53 ft
-1.77 ft net change over past 30 days
Verified freshwater recreation waterbody
Brisk (50–60°F) · Cold shock risk · Wetsuit recommended
CALAVERAS C NR SUNOL CA · Oct 10, 6:30 PM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Sat, Oct 10, 2026 | 726.56 | -0.06 ft | Provisional |
| Fri, Oct 9, 2026 | 726.62 | +2.86 ft | Provisional |
| Fri, Oct 9, 2026 | 723.76 | -2.95 ft | Provisional |
| Thu, Oct 8, 2026 | 726.71 | +2.87 ft | Provisional |
| Thu, Oct 8, 2026 | 723.84 | -0.10 ft | Provisional |
| Wed, Oct 7, 2026 | 723.94 | -2.87 ft | Provisional |
| Wed, Oct 7, 2026 | 726.81 | -0.09 ft | Provisional |
| Tue, Oct 6, 2026 | 726.90 | +2.87 ft | Provisional |
| Tue, Oct 6, 2026 | 724.03 | -0.11 ft | Provisional |
| Mon, Oct 5, 2026 | 724.14 | -2.86 ft | Provisional |
| Mon, Oct 5, 2026 | 727.00 | +2.76 ft | Provisional |
| Sun, Oct 4, 2026 | 724.24 | -2.85 ft | Provisional |
| Sun, Oct 4, 2026 | 727.09 | +2.78 ft | Provisional |
| Sat, Oct 3, 2026 | 724.31 | — | Provisional |
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Poor for swimming (45/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Measured water temperature 57°F from a representative gauge 0.8 mi away. Provisional data. Cold water hazard: thermal protection recommended below 60°F. Air temperature 49°F. Water temperature is 57°F (below 60°F). Immersion requires thermal protection. Confidence is moderate (75%) because some inputs are unavailable or older than ideal.