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Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / County Down / Cusher River

Bite forecast: Cusher River

  • length 1 km
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    61/100high activity

    Partly cloudy: 10–15 °C

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Cusher River (County Down) — a spot well known among anglers. About 1 km long. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

WednesdaySeptember 2weather-based forecast
58/100medium activity

Cloudy: 14–18 °C

  • ThursdaySeptember 3weather-based forecast
    57/100medium activity

    Cloudy: 13–17 °C

  • 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?
    DaceEuropean eelGraylingPikeBarbelRuffeWhitefishZanderBreamCarpPerchAtlantic salmonBrown troutWels catfishRainbow troutChubIdeRoachBleakCrucian carpWhite breamRuddTench

    Atlantic salmon

    6/10 · Fair

    Hourly activity

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

    The bite is strong — fish are active. 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

    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

    Worth going — it's a productive day.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 15 °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 °C15 °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 dropping 6 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 6 hPa change
    00:00 · 101623:00 · 1011 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

    2 SepWednesday, September 2
    +16°

    Cloudy · feels like +16°

    Low / high
    +14°…+18°
    Precipitation
    0.0 mm
    Wind
    8 mph SE
    Cloud cover
    100%
    Humidity
    93%
    Pressure
    1012 hPa
    00:00+14°0.2 mm4 mphsouthwest wind, 4 mph97%100%
    01:00+14°—5 mphsouthwest wind, 5 mph93%100%
    02:00+14°—3 mphsouth wind, 3 mph95%99%
    03:00+15°—5 mphsouthwest wind, 5 mph94%100%
    04:00+14°—2 mphsouth wind, 2 mph97%100%
    05:00+14°0.1 mm4 mphsoutheast wind, 4 mph98%100%
    06:00+14°0.1 mm7 mphsouth wind, 7 mph97%100%
    07:00+14°—6 mphsoutheast wind, 6 mph98%100%
    08:00+14°—5 mphsoutheast wind, 5 mph97%100%
    09:00+15°0.1 mm6 mphsouth wind, 6 mph96%100%
    10:00+16°—7 mphsoutheast wind, 7 mph96%100%
    11:00+16°—6 mphsoutheast wind, 6 mph93%100%
    12:00+16°—8 mphsoutheast wind, 8 mph93%100%
    13:00+17°—8 mphsoutheast wind, 8 mph94%100%
    14:00+16°0.5 mm6 mpheast wind, 6 mph97%100%
    15:00+16°2.1 mm3 mpheast wind, 3 mph97%100%
    16:00+17°0.1 mm4 mphsouth wind, 4 mph94%100%
    17:00+17°1.8 mm7 mphsouth wind, 7 mph98%99%
    18:00+18°0.2 mm5 mphsouth wind, 5 mph97%99%
    19:00+18°—10 mphsouthwest wind, 10 mph89%57%
    20:00+18°—9 mphsouthwest wind, 9 mph89%84%
    21:00+16°—8 mphsouthwest wind, 8 mph91%62%
    22:00+17°—8 mphsouthwest wind, 8 mph91%100%
    23:00+17°—10 mphsouthwest wind, 10 mph92%100%
    +18°+16°+14°
    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
    06:32
    Sunset
    20:12
    Day length
    13 h 40 min
    Sunshine hours
    32 min
    UV index
    1
    low
    Moon
    Waning gibbous
    Moonrise
    21:22
    Moonset
    13:38

    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 windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major04:08–06:08Moon overhead
    • Minor13:08–14:08Moonset
    • Major16:35–18:35Moon underfoot
    • Minor20:52–21:52Moonrise

    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

    • Cusher River3 mi
    • Bann3 mi
    • Closet River5 mi
    • Upper Bann5 mi
    • Lagan6 mi

    Nearby water bodies

    • LakeDrumaran Lake3 mi
    • LakeDrumiller Lough3 mi
    • LakeKernan Lake4 mi
    • LakeScarva Lough4 mi
    • Lakethe quarry4 mi
    • LakeCraigavon Balancing Lakes4 mi
    • LakeMarlacoo Lake5 mi
    • LakeLough Shark6 mi
    • LakeDrumnavaddy Lake6 mi
    • LakeBallynewry Lake6 mi