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The linked gauge for Santa Rosa Lake reported 4.87 ft at its latest stored observation on Oct 9, 2026, on a rising 30-day trend (+3.35 ft).
Local gage height: 4.87 ft
+3.35 ft net change over past 30 days
Deepest basin sounding across ~3,800 acres
Warm (>80°F) · Bath-like surface waters
Rio Grande nr Mercedes, TX · Oct 9, 11:00 AM UTC
| Observation Date | Gage height (ft) | 24h Change | Approval Status |
|---|---|---|---|
| Fri, Oct 9, 2026 | 4.92 | -1.25 ft | Provisional |
| Thu, Oct 8, 2026 | 6.17 | +0.51 ft | Provisional |
| Wed, Oct 7, 2026 | 5.66 | +0.76 ft | Provisional |
| Tue, Oct 6, 2026 | 4.90 | +0.35 ft | Provisional |
| Mon, Oct 5, 2026 | 4.55 | +0.24 ft | Provisional |
| Sun, Oct 4, 2026 | 4.31 | +2.64 ft | Provisional |
| Sat, Oct 3, 2026 | 1.67 | +0.10 ft | Provisional |
| Fri, Oct 2, 2026 | 1.57 | +0.01 ft | Provisional |
| Thu, Oct 1, 2026 | 1.56 | +0.03 ft | Provisional |
| Wed, Sep 30, 2026 | 1.53 | +0.03 ft | Provisional |
| Tue, Sep 29, 2026 | 1.50 | -0.01 ft | Provisional |
| Mon, Sep 28, 2026 | 1.51 | +0.04 ft | Provisional |
| Sun, Sep 27, 2026 | 1.47 | -0.03 ft | Provisional |
| Sat, Sep 26, 2026 | 1.50 | — | Provisional |
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Excellent for swimming (95/100), from 5 available inputs. Supporting this: No active official alerts for this lake. Measured water temperature 84°F from a representative gauge 23.1 mi away. Provisional data. Confidence is high (87%).