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Forecast
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© 2026·AI-powered bite forecast
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Ireland / County Clare / Bay Shannon Estuary

Bite forecast: Bay Shannon Estuary

  • 414.9 km²
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Best fishing days for the next week

  1. WednesdaySeptember 2weather-based forecast
    61/100high activity

    Cloudy: 17–18 °C

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Bay Shannon Estuary (County Clare) — a spot well known among anglers. About 414.9 km² in area. Nearby towns: Kilrush, Shannon and Kilkee. 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.

TuesdaySeptember 8weather-based forecast
61/100high activity

Cloudy: 11–17 °C

  • SaturdaySeptember 5weather-based forecast
    60/100high activity

    Partly cloudy: 9–18 °C

  • Nearby towns

    • Kilrush1 mi
    • Shannon1 mi
    • Kilkee4 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?
    Atlantic mackerelBallan wrasseGrey mulletPollackEuropean sea bassConger eelEuropean eelFlounderThornback rayAtlantic salmonBrown troutPlaiceAtlantic codWhiting

    Atlantic cod

    5/10 · Fair

    Hourly activity

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

    The bite is moderate — fish feed in short bursts. 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

    No special gear needed — seasonal clothing will do. A thunderstorm is possible — bring a rain jacket, and pack up at the first rumble of thunder.

    Summary

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 15 °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 °C15 °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 1 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 1 hPa change
    00:00 · 101523:00 · 1013 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 an active season for Atlantic cod here.

    JFMAMJJASOND

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

    2 SepWednesday, September 2
    +17°

    Cloudy · feels like +16°

    Low / high
    +15°…+18°
    Precipitation
    0.0 mm
    Wind
    14 mph WSW
    Cloud cover
    100%
    Humidity
    95%
    Pressure
    1012 hPa
    00:00+15°2.3 mm8 mphsoutheast wind, 8 mph98%100%
    01:00+15°2.1 mm9 mphsoutheast wind, 9 mph98%100%
    02:00+15°8.7 mm9 mphsoutheast wind, 9 mph98%100%
    03:00+15°5.6 mm9 mphsoutheast wind, 9 mph97%100%
    04:00+16°0.9 mm6 mphsouth wind, 6 mph99%100%
    05:00+17°0.5 mm8 mphsouthwest wind, 8 mph98%100%
    06:00+17°0.3 mm8 mphsouthwest wind, 8 mph98%100%
    07:00+17°0.5 mm10 mphsouthwest wind, 10 mph98%100%
    08:00+17°—8 mphsouthwest wind, 8 mph98%100%
    09:00+17°—9 mphsouthwest wind, 9 mph98%100%
    10:00+17°0.1 mm11 mphsouthwest wind, 11 mph99%100%
    11:00+17°—13 mphsouthwest wind, 13 mph99%100%
    12:00+17°—14 mphsouthwest wind, 14 mph95%100%
    13:00+18°—14 mphwest wind, 14 mph91%100%
    14:00+18°—14 mphsouthwest wind, 14 mph89%99%
    15:00+18°—13 mphsouthwest wind, 13 mph85%100%
    16:00+18°—13 mphsouthwest wind, 13 mph85%100%
    17:00+18°—12 mphsouthwest wind, 12 mph90%100%
    18:00+18°0.2 mm12 mphsouthwest wind, 12 mph96%100%
    19:00+18°—14 mphsouthwest wind, 14 mph98%100%
    20:00+17°—14 mphwest wind, 14 mph93%95%
    21:00+17°—13 mphsouthwest wind, 13 mph94%98%
    22:00+17°—13 mphsouthwest wind, 13 mph93%95%
    23:00+17°—13 mphwest wind, 13 mph92%100%
    +18°+16°+15°
    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
    06:48
    Sunset
    20:23
    Day length
    13 h 35 min
    Sunshine hours
    0 min
    UV index
    1
    low
    Moon
    Waning gibbous
    Moonrise
    21:40
    Moonset
    13:45

    The day is 4 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 windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major04:21–06:21Moon overhead
    • Minor13:15–14:15Moonset
    • Major16:48–18:48Moon underfoot
    • Minor21:10–22:10Moonrise

    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?

    Nearby rivers

    • Cloon4 mi
    • Glencorbry4 mi
    • White River4 mi
    • Crompaun5 mi
    • Robertstown River6 mi
    • Crompaun River6 mi
    • Poularono Creek7 mi
    • Ballyduneen River8 mi
    • Greygrove River9 mi

    Nearby water bodies

    • LakeEffernan Lough3 mi
    • LakeLough Athoya4 mi
    • LakeCloonsnaghta Lough5 mi
    • LakeGortglass Lough6 mi
    • LakeBallyleaan Lough6 mi
    • LakeCorraige Lough7 mi
    • LakeTarmon Lough8 mi
    • LakeKnockalough8 mi
    • LakeLough Achryane8 mi
    • LakeKnockerry Lough8 mi