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© 2026·AI-powered bite forecast
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Ireland / County Monaghan / Killylacky River

Bite forecast: Killylacky River

  • length 18 km
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Best fishing days for the next week

  1. MondaySeptember 7weather-based forecast
    61/100high activity

    Cloudy: 12–16 °C

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Killylacky River (County Monaghan) — a spot well known among anglers. About 18 km long. Close by — Clones and Monaghan. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.

WednesdaySeptember 9weather-based forecast
59/100medium activity

Clear: 10–17 °C

  • SundaySeptember 6weather-based forecast
    58/100medium activity

    Cloudy: 15–20 °C

  • Nearby towns

    • Clones0.6 mi
    • Monaghan12 mi

    Bite calendar

    Friday, September 4

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    European eelPikePerchAtlantic salmonBreamBrown troutCarpRainbow troutRoachBleakRuddTenchWhite bream

    Atlantic salmon

    5/10 · Fair

    Hourly activity

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

    The bite is moderate — fish feed in short bursts. Pressure is dropping — this usually boosts the bite.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 20:00–21:00 (dusk bite).

    Tactics

    Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.

    Lures

    The water's turning murky — go with bright, noisy lures: salmon spoon or salmon fly.

    Gear

    Pack transitional-season clothing — mornings and evenings are chilly. Rain is expected — don't forget a rain jacket or a waterproof shell.

    Summary

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 14 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.

    Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C14 °C
    JFMAMJJASOND

    Atlantic 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 Atlantic salmon feeds0:0012:0024:00

    Pressure is rising 10 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 10 hPa change
    00:00 · 100823:00 · 1018 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 salmon here.

    JFMAMJJASOND

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

    4 SepFriday, September 4
    +14°

    Drizzle · feels like +11°

    Low / high
    +11°…+16°
    Precipitation
    0.2 mm
    Wind
    13 mph W
    Cloud cover
    100%
    Humidity
    84%
    Pressure
    1010 hPa
    00:00+13°—9 mphsouthwest wind, 9 mph95%100%
    01:00+13°—11 mphsouthwest wind, 11 mph96%100%
    02:00+13°—11 mphsouthwest wind, 11 mph96%100%
    03:00+13°—10 mphsouthwest wind, 10 mph95%100%
    04:00+12°0.2 mm11 mphsouthwest wind, 11 mph93%91%
    05:00+12°—10 mphsouthwest wind, 10 mph90%100%
    06:00+12°—13 mphsouthwest wind, 13 mph88%89%
    07:00+12°—15 mphsouthwest wind, 15 mph89%2%
    08:00+12°—16 mphsouthwest wind, 16 mph85%100%
    09:00+13°—18 mphsouthwest wind, 18 mph85%84%
    10:00+13°0.1 mm18 mphwest wind, 18 mph84%100%
    11:00+14°—15 mphwest wind, 15 mph83%100%
    12:00+14°0.2 mm13 mphwest wind, 13 mph84%100%
    13:00+16°0.1 mm18 mphwest wind, 18 mph74%97%
    14:00+16°0.1 mm17 mphwest wind, 17 mph70%92%
    15:00+16°—16 mphwest wind, 16 mph72%80%
    16:00+16°—21 mphwest wind, 21 mph62%35%
    17:00+16°—20 mphwest wind, 20 mph64%2%
    18:00+15°—15 mphwest wind, 15 mph67%83%
    19:00+13°0.3 mm14 mphwest wind, 14 mph81%100%
    20:00+12°—15 mphwest wind, 15 mph79%4%
    21:00+12°—14 mphwest wind, 14 mph80%11%
    22:00+12°—12 mphwest wind, 12 mph80%59%
    23:00+11°—7 mphsouthwest wind, 7 mph91%84%
    +16°+14°+11°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Friday, September 4
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:40
    Sunset
    20:11
    Day length
    13 h 31 min
    Sunshine hours
    6 h 16 min
    UV index
    1
    low
    Moon
    Last quarter
    Moonrise
    22:40
    Moonset
    16:35

    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

    +13% in the windowFriday, September 4
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major06:07–08:07Moon overhead
    • Minor16:05–17:05Moonset
    • Major18:38–20:38Moon underfoot
    • Minor22:10–23:10Moonrise

    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

    • Bunnoe4 mi

    Nearby water bodies

    • LakeMunnilly Lough0.3 mi
    • LakeLisabuck Lough1 mi
    • LakeClonkeen Lough1 mi
    • LakeCorconnelly Lough2 mi
    • LakeHilton Lough2 mi
    • LakeKillyfargy Lough2 mi
    • LakeDrumaveale Lough3 mi
    • LakeSummerhill Lough3 mi
    • LakeClonoony Lough3 mi
    • LakeBishop's Lough3 mi