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United Kingdom / County Down / Tullybrannigan River

Bite forecast: Tullybrannigan River

  • length 2 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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Nearby rivers

  • Burren River2 mi
  • Carrigs River2 mi
  • Ballybannan River2 mi
  • Shimna River2 mi
  • Bloody Bridge River3 mi
  • Annalong River5 mi
  • Spence's River5 mi
  • Muddock River5 mi

Nearby water bodies

  • PondMill Pond4 mi
  • LakeAltnadua Lough4 mi
  • LakeBallylough4 mi
  • ReservoirBen Crom Reservoir4 mi
  • LakeCastlewellan Lake4 mi
  • LakeBlue Lough5 mi
  • ReservoirLough Island Reavy5 mi
  • LakeBinian Lough5 mi
  • ReservoirFofanny Reservoir5 mi
  • LakeBallymagreehan Lough6 mi

Tullybrannigan River (County Down) — a spot well known among anglers. About 2 km long. Nearby towns: Castlewellan and Rathfriland. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

TuesdaySeptember 8weather-based forecast
60/100high activity

Drizzle: 10–14 °C

  • SundaySeptember 6weather-based forecast
    59/100medium activity

    Partly cloudy: 15–18 °C

  • Nearby towns

    • Castlewellan4 mi
    • Rathfriland10 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?
    BarbelDaceEuropean eelGraylingPikeRuffeWhitefishPerchZanderAtlantic salmonBreamBrown troutCarpWels catfishRainbow troutChubIdeRoachBleakCrucian carpRuddTenchWhite 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. A thunderstorm is possible: activity rises before the front and drops after.

    Peak bite hours

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

    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 14 °C — warmer than the 4–14 °C comfort range for Atlantic salmon: in the heat it drops deeper and feeds less often.

    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 9 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 9 hPa change
    00:00 · 100823:00 · 1017 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
    +16°

    Drizzle · feels like +12°

    Low / high
    +12°…+17°
    Precipitation
    0.2 mm
    Wind
    19 mph W
    Cloud cover
    48%
    Humidity
    73%
    Pressure
    1008 hPa
    00:00+14°—6 mphsouthwest wind, 6 mph89%100%
    01:00+14°—5 mphsouthwest wind, 5 mph89%100%
    02:00+13°—6 mphsouthwest wind, 6 mph89%100%
    03:00+13°—5 mphsouthwest wind, 5 mph91%100%
    04:00+14°—7 mphsouthwest wind, 7 mph89%100%
    05:00+13°—10 mphsouthwest wind, 10 mph87%100%
    06:00+12°—12 mphsouthwest wind, 12 mph85%100%
    07:00+12°—14 mphwest wind, 14 mph82%2%
    08:00+13°—15 mphwest wind, 15 mph80%1%
    09:00+14°—17 mphwest wind, 17 mph77%28%
    10:00+15°—18 mphwest wind, 18 mph75%49%
    11:00+12°2.0 mm21 mphwest wind, 21 mph90%98%
    12:00+16°0.2 mm19 mphwest wind, 19 mph73%48%
    13:00+17°—20 mphwest wind, 20 mph59%13%
    14:00+15°0.1 mm15 mphwest wind, 15 mph73%100%
    15:00+17°0.1 mm13 mphwest wind, 13 mph68%45%
    16:00+17°—14 mphwest wind, 14 mph65%45%
    17:00+17°—18 mphwest wind, 18 mph61%79%
    18:00+15°0.1 mm12 mphnorthwest wind, 12 mph78%36%
    19:00+14°—13 mphwest wind, 13 mph73%0%
    20:00+13°—14 mphwest wind, 14 mph75%0%
    21:00+13°—13 mphwest wind, 13 mph75%3%
    22:00+13°—14 mphwest wind, 14 mph75%23%
    23:00+12°—12 mphwest wind, 12 mph79%31%
    +17°+15°+12°
    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
    06:35
    Sunset
    20:07
    Day length
    13 h 32 min
    Sunshine hours
    10 h
    UV index
    3
    moderate
    Moon
    Last quarter
    Moonrise
    22:35
    Moonset
    16:31

    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

    +14% in the windowFriday, September 4
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major06:03–08:03Moon overhead
    • Minor16:01–17:01Moonset
    • Major18:34–20:34Moon underfoot
    • Minor22:05–23:05Moonrise

    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?