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© 2026·AI-powered bite forecast
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United Kingdom / Highland / Bay Loch Long

Bite forecast: Bay Loch Long

  • 2.8 km²
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Best fishing days for the next week

  1. ThursdaySeptember 10weather-based forecast
    75/100high activity

    Cloudy: 9–14 °C

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Nearby rivers

  • River Glennan1 mi
  • Allt Gleann Udalain2 mi

Nearby water bodies

  • LakeLoch Aimm na Gaibhre1 mi
  • LakeLoch Anna1 mi
  • LakeLoch Dubhach1 mi
  • LakeLoch Thollaid1 mi
  • LakeLoch na Craoibhe-caoruinn2 mi
  • LakeLoch Beinn a' Mheadhoin2 mi
  • LakeLoch na Faolaig2 mi
  • LakeLoch na Cuiche2 mi
  • LakeLoch Gorm Mòr2 mi
  • LakeLoch Bhuic Mhòir2 mi

Bay Loch Long (Highland) — a spot well known among anglers. About 2.8 km² in area. A coastal water: the bite here is modelled for the sea, not for a river or a lake. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

SaturdaySeptember 12weather-based forecast
73/100high activity

Drizzle: 9–11 °C

  • MondaySeptember 7weather-based forecast
    69/100high activity

    Partly cloudy: 10–13 °C

  • Bite calendar

    Sunday, September 6

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    Atlantic mackerelBallan wrasseBrown troutConger eelEuropean eelFlounderGrey mulletPlaicePollackThornback rayAtlantic salmonEuropean sea bassWhitingAtlantic cod

    Atlantic cod

    2/10 · Poor

    Hourly activity

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

    The bite is weak — fish are sluggish. A thunderstorm is possible: activity rises before the front and drops after.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 20:00–22:00 (dusk bite).

    Tactics

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

    Lures

    The water's turning murky — go with bright, noisy lures: pirk or lugworm bottom rig.

    Gear

    Pack transitional-season clothing — mornings and evenings are chilly. A thunderstorm is possible — bring a rain jacket, and pack up at the first rumble of thunder.

    Summary

    A slow day — go only if you really feel like it.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 12 °C — warmer than the 4–12 °C comfort range for Atlantic cod: in the heat it drops deeper and feeds less often.

    Computed water temperature by month; the green band is the 4–12 °C comfort rangecomfort 4–12 °C12 °C
    JFMAMJJASOND

    Atlantic cod 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 Atlantic cod feeds0:0012:0024:00

    Pressure is dropping 14 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 14 hPa change
    00:00 · 101923:00 · 1006 hPa

    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 a slow season for Atlantic cod: the best months fall at another time of year.

    JFMAMJJASOND

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

    Tides

    • High water02:300.5 m
    • Low water08:47-1.0 m
    • High water15:140.9 m
    • Low water21:54-1.1 m
    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
    0.0 m0.3 m0.5 m0.5 m0.3 m0.0 m-0.4 m-0.7 m-1.0 m-1.0 m-0.9 m-0.5 m0.0 m0.5 m0.8 m0.9 m0.8 m0.6 m0.3 m-0.2 m-0.6 m-1.0 m-1.1 m-0.9 m

    Open-Meteo tide model, grid point 5.6 mi away

    Water

    Water temp.
    15 °C
    In the model
    12 °C
    Wave
    0.2 m
    Period
    2 s

    Open-Meteo Marine model, grid cell 5.6 mi from the waterbody. Values are daily means.

    6 SepSunday, September 6
    +16°

    Drizzle · feels like +15°

    Low / high
    +11°…+17°
    Precipitation
    0.8 mm
    Wind
    10 mph SSE
    Cloud cover
    98%
    Humidity
    96%
    Pressure
    1009 hPa
    00:00+11°—4 mphsoutheast wind, 4 mph89%100%
    01:00+11°0.1 mm4 mphsoutheast wind, 4 mph86%100%
    02:00+11°0.2 mm7 mpheast wind, 7 mph87%100%
    03:00+11°0.3 mm8 mpheast wind, 8 mph88%100%
    04:00+11°1.4 mm11 mpheast wind, 11 mph90%100%
    05:00+11°1.4 mm11 mphsoutheast wind, 11 mph96%100%
    06:00+11°1.3 mm6 mphsoutheast wind, 6 mph97%100%
    07:00+12°0.8 mm6 mphsoutheast wind, 6 mph95%100%
    08:00+13°0.9 mm4 mphsouth wind, 4 mph96%100%
    09:00+14°0.5 mm4 mphsoutheast wind, 4 mph96%100%
    10:00+14°0.7 mm7 mpheast wind, 7 mph96%100%
    11:00+15°0.4 mm8 mphsoutheast wind, 8 mph96%100%
    12:00+16°0.8 mm10 mphsouth wind, 10 mph96%98%
    13:00+16°0.8 mm12 mphsouth wind, 12 mph94%100%
    14:00+17°—14 mphsouth wind, 14 mph89%100%
    15:00+17°0.1 mm12 mphsouth wind, 12 mph85%100%
    16:00+15°3.0 mm10 mphsoutheast wind, 10 mph96%100%
    17:00+16°0.6 mm11 mphsouth wind, 11 mph91%95%
    18:00+16°0.3 mm9 mphsouth wind, 9 mph88%100%
    19:00+15°0.5 mm6 mphsouth wind, 6 mph94%100%
    20:00+16°0.5 mm10 mphsouthwest wind, 10 mph90%96%
    21:00+15°0.2 mm9 mphsouthwest wind, 9 mph94%100%
    22:00+14°0.2 mm15 mphwest wind, 15 mph91%97%
    23:00+13°0.1 mm10 mphwest wind, 10 mph86%97%
    +17°+14°+11°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Sunday, September 6
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:30
    Sunset
    20:04
    Day length
    13 h 34 min
    Sunshine hours
    0 min
    UV index
    1
    low
    Moon
    Waning crescent
    Moonrise
    —
    Moonset
    18:42

    The day is 5 min shorter than yesterday.

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

    Solunar feeding periods

    +13% in the windowSunday, September 6
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major08:04–10:04Moon overhead
    • Minor18:12–19:12Moonset
    • Major20:35–22:35Moon 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?