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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
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© 2026·AI-powered bite forecast
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United States / Alaska / Bay Knik Arm

Bite forecast: Bay Knik Arm

  • 107.9 sq mi
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Best fishing days for the next week

  1. MondaySeptember 7weather-based forecast
    62/100high activity

    Showers: 45–50 °F

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Nearby rivers

  • Cottonwood Creek8 mi

Nearby water bodies

  • LakePsalm Lake3 mi
  • LakeBeach Lake3 mi
  • LakeClunie Lake3 mi
  • LakeLower Fire Lake4 mi
  • LakeUpper Fire Lake5 mi
  • LakeMink Lake5 mi
  • LakeKnik Lake5 mi
  • LakeCaves Lake6 mi
  • LakeWhite Lake6 mi
  • LakeLake Beth6 mi

Bay Knik Arm (Alaska) — one of the area's fishing spots. About 279.3 km² in area. Nearest town — Anchorage. Salt water, not fresh — so this page carries its own marine bite forecast. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

Catches

Recorded 2 catches here. Most commonly caught: Rainbow trout, Pike. Peak season: January–July.

  • Rainbow trout
    Otter Lake
    37 °F4 mph
    Jan 01, 2019, 3:05 PM
  • Pike
    Lower Fire Lake
    Jul 02, 2018
SundaySeptember 6weather-based forecast
60/100high activity

Cloudy: 41–57 °F

  • TuesdaySeptember 8weather-based forecast
    58/100medium activity

    Drizzle: 50–59 °F

  • Nearby towns

    • Anchorage0.5 mi

    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?

    In the fish list, this icon marks species recorded here by GBIF. Unmarked species may still occur in the waterbody.

    Coho salmonPacific halibutRockfishSteelheadFlounderChinook salmonLingcod

    Coho salmon

    8/10 · Good

    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 — 07:00–09:00 (dawn bite) and 21:00–23:00 (dusk bite).

    Tactics

    Look for structure — reefs, flats, channel edges; work them slowly near the bottom.

    Lures

    In clear water, natural colors work best: trolling spoon or spinner.

    Gear

    Bring a warm jacket — it's noticeably colder on the water than on shore.

    Summary

    Worth going — it's a productive day.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 51 °F — inside the 43–59 °F comfort range for Coho salmon, so baseline activity is high.

    Computed water temperature by month; the green band is the 43–59 °F comfort rangecomfort 43–59 °F51 °F
    JFMAMJJASOND

    Coho salmon 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 Coho salmon feeds0:0012:0024:00

    Pressure is rising 0.21 inHg over the day — the bite usually settles down after a rise.

    Pressure through the day, 0.21 inHg change
    00:00 · 29.8623:00 · 30.05 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 peak season for Coho salmon here.

    JFMAMJJASOND

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

    Tides

    • Low water05:52-12.8 ft
    • High water11:396.9 ft
    • Low water18:01-8.4 ft
    0:006:0012:0018:0023:000:006:0012:0018:0023:00
    Sea level height by hour
    00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
    11.3 ft6.8 ft2.1 ft-1.7 ft-5.9 ft-10.7 ft-12.8 ft-9.3 ft-2.5 ft2.8 ft5.1 ft6.4 ft6.7 ft4.7 ft1.4 ft-0.9 ft-3.0 ft-6.1 ft-8.4 ft-6.2 ft0.4 ft7.1 ft10.5 ft11.8 ft

    Open-Meteo tide model, grid point 4.5 mi away

    Water

    Water temp.
    59 °F
    In the model
    51 °F
    Wave
    Calm

    Open-Meteo Marine model, grid cell 4.5 mi from the waterbody. Values are daily means.

    2 SepWednesday, September 2
    +51°

    Partly cloudy · feels like +47°

    Low / high
    +38°…+54°
    Precipitation
    0.00 in
    Wind
    4 mph NNE
    Cloud cover
    45%
    Humidity
    66%
    Pressure
    30.02 inHg
    00:00+46°—2 mphnorthwest wind, 2 mph76%100%
    01:00+45°—4 mphnorthwest wind, 4 mph80%95%
    02:00+44°—4 mphnorthwest wind, 4 mph81%100%
    03:00+45°—5 mphnorthwest wind, 5 mph78%99%
    04:00+43°—6 mphnorthwest wind, 6 mph78%20%
    05:00+41°—6 mphnorthwest wind, 6 mph80%1%
    06:00+40°—6 mphnorth wind, 6 mph79%2%
    07:00+39°—5 mphnorth wind, 5 mph84%17%
    08:00+38°—5 mphnorth wind, 5 mph87%27%
    09:00+41°—5 mphnorth wind, 5 mph84%70%
    10:00+44°—4 mphnorth wind, 4 mph81%62%
    11:00+48°—3 mphnorth wind, 3 mph71%55%
    12:00+51°—4 mphnortheast wind, 4 mph66%45%
    13:00+52°—2 mphnortheast wind, 2 mph63%100%
    14:00+51°—2 mphsoutheast wind, 2 mph64%100%
    15:00+51°—2 mphsouth wind, 2 mph64%100%
    16:00+53°—2 mphsouth wind, 2 mph62%100%
    17:00+53°—2 mphsoutheast wind, 2 mph63%98%
    18:00+54°—5 mphsoutheast wind, 5 mph62%96%
    19:00+54°—5 mphsoutheast wind, 5 mph62%100%
    20:00+53°—5 mphsouth wind, 5 mph67%100%
    21:00+51°—5 mphsouth wind, 5 mph71%100%
    22:00+51°—6 mphsouth wind, 6 mph70%98%
    23:00+51°—7 mphsouth wind, 7 mph73%100%
    +54°+46°+38°
    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
    07:27
    Sunset
    21:29
    Day length
    14 h 2 min
    Sunshine hours
    7 h 46 min
    UV index
    1
    low
    Moon
    Waning gibbous
    Moonrise
    21:03
    Moonset
    15:53

    The day is 6 min shorter than yesterday.

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

    Solunar feeding periods

    +10% in the windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major05:06–07:06Moon overhead
    • Minor15:23–16:23Moonset
    • Major17:34–19:34Moon underfoot
    • Minor20:33–21:33Moonrise

    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?