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Where to fish

  • Forecast
  • Catches

Mine

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Forecast
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© 2026·AI-powered bite forecast
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United States / Alabama / Reservoir Guntersville Lake

Bite forecast: Reservoir Guntersville Lake

  • 106.3 sq mi
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Best fishing days for the next week

  1. WednesdaySeptember 2weather-based forecast
    33/100medium activity

    Partly cloudy: 73–97 °F

Reservoir Guntersville Lake (Alabama) — a popular fishing spot. About 275.2 km² in area. This page shows an hourly bite forecast for today and the week ahead; the algorithm factors in the weather, atmospheric pressure, and the moon phase.

SaturdaySeptember 5weather-based forecast
28/100low activity

Cloudy: 75–86 °F

  • SundaySeptember 6weather-based forecast
    25/100low activity

    Clear: 72–100 °F

  • Loading map…

    Catches

    Recorded 12 catches here. Most commonly caught: Largemouth bass, Spotted bass, Walleye. Peak season: year-round.

    • Spotted bass
      Alabama, Madison County
      75 °F2 mph
      Jun 18, 2019
    • Largemouth bass
      Guntersville Lake
      82 °F11 mph
      May 01, 2019
    • Largemouth bass
      Guntersville Lake
      48 °F13 mph
      Apr 20, 2019
    • Walleye
      Tennessee River
      Nov 25, 2018
    • Largemouth bass
      Guntersville Lake
      Oct 13, 2018
    • Largemouth bass
      Guntersville Lake
      84 °F7 mph
      Aug 11, 2018
    • Largemouth bass
      Guntersville Lake
      Jul 16, 2018
    • Largemouth bass
      Guntersville Lake
      Jun 27, 2018

    Fish biting at this waterbody

    Choose a fish to see its hourly forecast, catches and BiteGuide.

    • Largemouth bass

    Bite calendar

    Wednesday, September 2

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    Striped bassBlack crappieSmallmouth bassWhite bassWhite crappieWalleyeLargemouth bassBlue catfishBluegillCarpChannel catfishFlathead catfishGrass carpSpotted bass

    Black crappie

    6/10 · Fair

    Hourly activity

    0:006:0012:0018:0023:00
    Bite activity:highmediumlow

    The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (dusk bite).

    Tactics

    Look for drop-offs and gaps in the weeds, retrieve slowly, lingering over promising spots.

    Lures

    In clear water, natural colors work best: small jig or minnow bait.

    Gear

    It's a hot day — a hat, sunglasses, and plenty of water are a must.

    Summary

    Worth going — it's a productive day.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 82 °F — warmer than the 57–75 °F comfort range for Black crappie: in the heat it drops deeper and feeds less often.

    Computed water temperature by month; the green band is the 57–75 °F comfort rangecomfort 57–75 °F82 °F
    JFMAMJJASOND

    Black crappie works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.

    The day: daylight hours and when Black crappie feeds0:0012:0024:00

    Pressure is dropping 0.03 inHg over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 0.03 inHg change
    00:00 · 30.0323:00 · 30.00 inHg

    One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.

    Feeding windows on the day scale0:0012:0024:00

    September is an active season for Black crappie here.

    JFMAMJJASOND

    These are the same values the bite curve above was computed from. How the forecast works

    2 SepWednesday, September 2
    +93°

    Partly cloudy · feels like +102°

    Low / high
    +74°…+96°
    Precipitation
    0.00 in
    Wind
    3 mph E
    Cloud cover
    20%
    Humidity
    48%
    Pressure
    30.06 inHg
    00:00+80°—4 mphsouthwest wind, 4 mph78%0%
    01:00+79°—5 mphwest wind, 5 mph82%0%
    02:00+78°—4 mphwest wind, 4 mph85%0%
    03:00+77°—5 mphwest wind, 5 mph87%0%
    04:00+76°—4 mphnorthwest wind, 4 mph89%0%
    05:00+75°—2 mpheast wind, 2 mph92%0%
    06:00+74°—2 mpheast wind, 2 mph91%0%
    07:00+74°—2 mphnortheast wind, 2 mph93%1%
    08:00+80°—4 mphnorth wind, 4 mph85%0%
    09:00+84°—5 mphnorth wind, 5 mph73%0%
    10:00+88°—4 mphnorth wind, 4 mph63%0%
    11:00+91°—3 mphnortheast wind, 3 mph54%13%
    12:00+93°—3 mpheast wind, 3 mph48%20%
    13:00+94°—3 mphsoutheast wind, 3 mph45%31%
    14:00+95°—3 mphsoutheast wind, 3 mph41%89%
    15:00+96°—5 mphsoutheast wind, 5 mph40%25%
    16:00+96°—5 mphsoutheast wind, 5 mph39%10%
    17:00+96°—6 mphsoutheast wind, 6 mph38%64%
    18:00+93°—7 mphsoutheast wind, 7 mph43%100%
    19:00+90°—4 mphsoutheast wind, 4 mph48%100%
    20:00+86°—7 mphsouth wind, 7 mph64%94%
    21:00+85°—5 mphsouthwest wind, 5 mph69%100%
    22:00+83°—5 mphsouthwest wind, 5 mph64%100%
    23:00+82°—5 mphsouthwest wind, 5 mph69%99%
    +96°+85°+74°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Wednesday, September 2
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:24
    Sunset
    19:09
    Day length
    12 h 45 min
    Sunshine hours
    10 h 11 min
    UV index
    7
    high
    Moon
    Waning gibbous
    Moonrise
    22:07
    Moonset
    12:03

    The day is 2 min shorter than yesterday.

    Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.

    Solunar feeding periods

    +14% in the windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major03:40–05:40Moon overhead
    • Minor11:33–12:33Moonset
    • Major16:08–18:08Moon underfoot
    • Minor21:37–22:37Moonrise

    The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.

    What are solunar periods?

    BiteGuide·From anglers’ reports

    What actually worked on this water

    Based on 12 verified catchesPeriod: 2017–2019

    This is a summary of anglers' reports, not a proven cause of the bite: conditions lining up does not mean they drove it.

    By fish species

    vertical axis — number of catches

    059
    9111
    Largemouth bassSmallmouth bassSpotted bassWalleye
    By fish species
    ValueCatchesShare
    Largemouth bass975%
    Smallmouth bass18%
    Spotted bass18%
    Walleye18%

    By month

    vertical axis — number of catches

    012
    12221112
    FebAprMayJunJulAugOctNov
    By month
    ValueCatchesShare
    Feb18%
    Apr217%
    May217%
    Jun217%
    Jul18%
    Aug18%
    Oct18%
    Nov217%

    Air temperature, °F

    7 catches have this data · vertical axis — number of catches

    012
    11122
    4150596877
    Air temperature, °F
    ValueCatchesShare
    41–48 °F114%
    50–57 °F114%
    59–66 °F114%
    68–75 °F229%
    77–84 °F229%

    Pressure, inHg

    7 catches have this data · vertical axis — number of catches

    023
    223
    29.1329.3329.53
    Pressure, inHg
    ValueCatchesShare
    29.13–29.29 inHg229%
    29.33–29.49 inHg229%
    29.53–29.69 inHg343%

    Wind direction

    7 catches have this data · vertical axis — number of catches

    012
    111211
    NSESSWWNW
    Wind direction
    ValueCatchesShare
    N114%
    SE114%
    S114%
    SW229%
    W114%
    NW114%

    Wind speed, mph

    7 catches have this data · vertical axis — number of catches

    012
    2221
    04913
    Wind speed, mph
    ValueCatchesShare
    0–2 mph229%
    4–7 mph229%
    9–11 mph229%
    13–16 mph114%