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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
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© 2026·AI-powered bite forecast
0.1.0+2161 · b4069346

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United States / Oregon / Grays Bay

Bite forecast: Grays Bay

  • 6.5 sq mi
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    81/100high activity

    Clear: 46–70 °F

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Grays Bay (Oregon) — a spot well known among anglers. About 16.8 km² in area. Nearest town — Astoria. A coastal water: the bite here is modelled for the sea, not for a river or a lake. 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.

Nearby rivers

  • South Naselle River4 mi
  • Deep River5 mi
  • Columbia River7 mi
  • South Channel7 mi

Nearby water bodies

  • BayGrays Bay0 mi
  • BayBrix Bay0.9 mi
  • BayBrix Bay0.9 mi
  • ReservoirWirkkala Lake5 mi
  • PondMill Pond8 mi
  • ReservoirAstoria Reservoir8 mi
SundaySeptember 6weather-based forecast
74/100high activity

Clear: 46–70 °F

  • ThursdaySeptember 3weather-based forecast
    68/100high activity

    Cloudy: 39–52 °F

  • Nearby towns

    • Astoria7 mi

    Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    FlounderRockfishCoho salmonLingcodPacific halibutSteelheadChinook salmon

    Coho salmon

    9/10 · Good

    Hourly activity

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

    The bite is strong — fish are active. Pressure is rising — activity tends to be more subdued.

    Peak bite hours

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

    Pack transitional-season clothing — mornings and evenings are chilly.

    Summary

    Worth going — it's a productive day.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 62 °F — warmer than the 43–59 °F comfort range for Coho salmon: in the heat it drops deeper and feeds less often.

    Computed water temperature by month; the green band is the 43–59 °F comfort rangecomfort 43–59 °F62 °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 dropping 0.06 inHg over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 0.06 inHg change
    00:00 · 30.0923:00 · 30.03 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 water04:30-4.9 ft
    • High water11:013.2 ft
    • Low water16:37-1.6 ft
    • High water22:264.6 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
    1.7 ft-0.2 ft-2.2 ft-3.9 ft-4.9 ft-4.9 ft-3.9 ft-2.3 ft-0.3 ft1.5 ft2.8 ft3.2 ft2.8 ft1.8 ft0.6 ft-0.7 ft-1.5 ft-1.6 ft-0.8 ft0.6 ft2.2 ft3.6 ft4.5 ft4.4 ft

    Open-Meteo tide model, grid point 8.9 mi away

    Water

    Water temp.
    62 °F
    In the model
    62 °F
    Wave
    2.4 ft
    Period
    8 s

    Open-Meteo Marine model, grid cell 8.9 mi from the waterbody. Values are daily means.

    8 SepTuesday, September 8
    +64°

    Clear · feels like +60°

    Low / high
    +45°…+69°
    Precipitation
    0.00 in
    Wind
    7 mph SSW
    Cloud cover
    0%
    Humidity
    35%
    Pressure
    30.08 inHg
    00:00+48°—6 mphnorthwest wind, 6 mph92%71%
    01:00+47°—5 mphnorthwest wind, 5 mph94%74%
    02:00+47°—5 mphwest wind, 5 mph95%70%
    03:00+46°—4 mphwest wind, 4 mph95%52%
    04:00+45°—4 mphwest wind, 4 mph95%26%
    05:00+45°—4 mphwest wind, 4 mph92%7%
    06:00+46°—3 mphwest wind, 3 mph87%0%
    07:00+48°—2 mphsouthwest wind, 2 mph79%0%
    08:00+50°—3 mphsouthwest wind, 3 mph71%0%
    09:00+54°—4 mphsouth wind, 4 mph61%0%
    10:00+58°—5 mphsouth wind, 5 mph49%0%
    11:00+61°—6 mphsouthwest wind, 6 mph40%0%
    12:00+64°—7 mphsouthwest wind, 7 mph35%0%
    13:00+66°—7 mphsouthwest wind, 7 mph33%0%
    14:00+67°—7 mphsouthwest wind, 7 mph31%0%
    15:00+69°—6 mphsouthwest wind, 6 mph29%0%
    16:00+69°—5 mphsouthwest wind, 5 mph28%1%
    17:00+69°—4 mphsouth wind, 4 mph29%2%
    18:00+66°—2 mphsouth wind, 2 mph34%3%
    19:00+61°—1 mpheast wind, 1 mph40%4%
    20:00+58°—3 mphnortheast wind, 3 mph46%5%
    21:00+56°—4 mphnortheast wind, 4 mph49%4%
    22:00+55°—4 mphnortheast wind, 4 mph51%3%
    23:00+55°—4 mphnortheast wind, 4 mph52%2%
    +69°+57°+45°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Tuesday, September 8
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:31
    Sunset
    19:23
    Day length
    12 h 52 min
    Sunshine hours
    12 h 11 min
    UV index
    6
    high
    Moon
    Waning crescent
    Moonrise
    03:35
    Moonset
    18:39

    The day is 3 min shorter than yesterday.

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

    Solunar feeding periods

    +11% in the windowTuesday, September 8
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor03:05–04:05Moonrise
    • Major10:16–12:16Moon overhead
    • Minor18:09–19:09Moonset
    • Major22:42–00:00Moon underfoot

    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?