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    Boca Reservoir scenic landscape
    Home>Lakes>Boca Reservoir>Water Level & Temperature
    Live Hydrology TelemetryLast updated: Oct 11, 2026 • 12:01 PM
    ← Lake Dashboard

    Boca Reservoir Water Level & Water Temperature

    Nevada County, California

    The linked gauge for Boca Reservoir reported 5574.86 ft at its latest stored observation on Oct 11, 2026, on a falling 30-day trend (-0.87 ft).

    Stage / Gage5574.86 ft
    30-Day Trend-0.87 ft
    Benchmark5,605 ft MSL
    Surface TempSensor Pending
    Monitoring Station
    USGS NWIS
    STAMPEDE RES NR BOCA CA
    Sensor ID10344300
    Distance6.3 mi away
    Vertical DatumNAVD88
    Photo: Daderot • Public Domain via Wikimedia Commons
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    Latest Gage HeightWater Level
    5574.86FT GAGE

    Local gage height: 5574.86 ft

    Observed Oct 11, 3:30 PMHistory & Readings ↓
    30-Day TrendWater Level
    Falling-0.87 FT

    -0.87 ft net change over past 30 days

    30-Day WindowHistorical Trajectory
    Maximum Recorded DepthWater Level
    85FT

    Deepest basin sounding across ~980 acres

    Basin MetricSurvey Reference
    Water Temperature
    —PENDING

    Water temperature is not available from a verified source for this lake. LakeRadar does not estimate it from latitude, season, or a different lake.

    Sensor PendingTelemetry Pending

    Water Level

    Last 28 Days
    Surface elevation
    5,570.9 ft
    ↓ -0.8 ft (7 days)
    5,9225,921.55,9215,920.55,920Sep 11Sep 18Sep 25Oct 2Oct 95,921.1 ft
    Provisional USGS reading
    Daily History Table ↓

    Water Temperature (Surface)

    Surface temperature (Estimated Surface Temperature)
    66.6°F
    Estimated

    7471686562Oct 1Oct 4Sep 29Oct 2Oct 566.6°F
    Historical daily estimate
    7-Day forecast
    Forecast uncertainty
    Temperature Guide ↓

    30-Day Gage Height History

    Gage height in feet · Daily observations
    30d Range5921.11 – 5925.91 ft
    5925.91 ft5923.51 ft5921.11 ftSep 11Sep 26Oct 10

    Recent Gage Height Readings

    Most recent linked-gauge observations, newest first. Gage height in ft .
    Observation DateGage height (ft)24h ChangeApproval Status
    Sat, Oct 10, 20265925.14-0.03 ftProvisional
    Fri, Oct 9, 20265925.17+4.11 ftProvisional
    Fri, Oct 9, 20265921.06-4.13 ftProvisional
    Thu, Oct 8, 20265925.19+4.11 ftProvisional
    Thu, Oct 8, 20265921.08-0.03 ftProvisional
    Wed, Oct 7, 20265921.11-4.10 ftProvisional
    Wed, Oct 7, 20265925.21-0.02 ftProvisional
    Tue, Oct 6, 20265925.23+4.10 ftProvisional
    Tue, Oct 6, 20265921.13-0.02 ftProvisional
    Mon, Oct 5, 20265921.15-4.11 ftProvisional
    Mon, Oct 5, 20265925.26+4.09 ftProvisional
    Sun, Oct 4, 20265921.17-4.11 ftProvisional
    Sun, Oct 4, 20265925.28+4.07 ftProvisional
    Sat, Oct 3, 20265921.21—Provisional

    Boca Reservoir Water Temperature & Seasonal Thermal Guide

    Seasonal thermal layers, limnology dynamics, and temperature benchmarks.

    Estimated from recent weather conditions. Deeper water may be considerably cooler, especially in stratified lakes.

    Summer Peak (Jun–Aug)68°F – 78°FPrime open water swimming, tubing, and shoreline wading.
    Fall Shoulder (Sep–Nov)56°F – 66°FCool water; active fall bass, trout, and walleye feeding transition.
    Spring Pre-Spawn (Apr–May)48°F – 58°FCold shock hazard; wetsuits recommended and USCG PFD required.
    Winter Min (Dec–Mar)34°F – 44°FSevere immersion hazard; possible surface freezing or ice cover.
    Limnological Note: In temperate freshwater lakes, the epilimnion (surface layer) warms quickly on sunny afternoons, while water below 15–20 feet remains 10–20°F cooler.

    Boca Reservoir Swimming & Immersion Suitability

    Real-time open water swimming readiness calculated from atmospheric observations, seasonal limnological thermal baselines, and surface wave dynamics for Boca Reservoir
    Forecast & Solar Times →
    —/ 100
    Sensor Pending
    Telemetry Coverage:

    Direct in-situ sensor data is required to compute numeric suitability.

    Water temperature is not available from a verified source for this lake. No swimming score is shown without it.

    Scoring Factors & Telemetry Inputs
    Storms and alertsNo alerts100% score
    Air temperature54°F32% score
    Water temperatureActive
    Wind15 mph SW74% score
    Precipitation chance19%85% score

    Boca Reservoir Telemetry & Sensor Provenance

    Physical in-situ monitoring equipment, benchmarks & sensor specifications
    Monitoring StationSTAMPEDE RES NR BOCA CA
    Station IdentifierStation #10344300
    Coverage TypeDirect in-situ lake sensor
    Vertical DatumNot cataloged
    Sensor Coordinates39.4704° N, 120.1041° W
    Parameters TrackedDischarge / Streamflow, Elevation (Datum), 62615

    Frequently Asked Questions About Boca Reservoir Water

    Common questions about water levels, elevation, and swimming temperature
    What is the current water level at Boca Reservoir?+
    The linked gauge's latest stored gage height for Boca Reservoir is 5574.86 ft. Gage height is not water depth or automatically an elevation above sea level.
    How full is Boca Reservoir?+
    LakeRadar cannot determine how full Boca Reservoir is because a verified full-pool benchmark is not cataloged.
    What is the full pool elevation for Boca Reservoir?+
    A full-pool benchmark is not available from a verified source for Boca Reservoir.
    What is the water temperature of Boca Reservoir?+
    Water temperature is not available from a verified source for Boca Reservoir. LakeRadar does not estimate it from latitude or season.
    How is Boca Reservoir's water level measured?+
    The linked gage-height observations for Boca Reservoir come from STAMPEDE RES NR BOCA CA (automated hydrological monitoring network). LakeRadar stores normalized telemetry from verified in-situ hydrographic sensors.

    Real-time hydrological water levels, surface temperatures, atmospheric forecasts, and marine safety conditions. Return to Boca Reservoir Dashboard → · Boating Outlook → · Sailing Guide → · Weather & Forecast → · Fishing Forecast → · Radar & Map →