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Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / County Londonderry

County Londonderry — bite forecast

Loading map…
Towns and settlements (2)
Derry/LondonderryDungiven
Rivers (47)
Aghadowey RiverAgiveyRoe

44 more — find yours by name.

Water bodies (17)
Altnaheglish ReservoirBallinrees ReservoirBinevenaghCreggan ReservoirsCreggan ReservoirsDunalis ReservoirEnagh LoughGransha LakeGreen LakeIsland LakeKathleen's LoughKillea ReservoirKillelagh LoughLough FeaLough OuskeLough PatrickNew Lake

Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    69/100high activity

    Partly cloudy: 10–14 °C

County Londonderry — a land of rivers, lakes, and reservoirs. The region has 2 cities, 47 rivers and 17 water bodies. Fish species: bleak, roach, rainbow trout, wels catfish, ide and ruffe. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

WednesdaySeptember 2weather-based forecast
63/100high activity

Cloudy: 14–19 °C

  • ThursdaySeptember 3weather-based forecast
    63/100high activity

    Cloudy: 13–17 °C

  • Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?

    Bite on rivers

    8 SepTuesday, September 8

    Tap any fish to open its full forecast — the hours it bites, what it takes, and where it has been caught.

    0:0023:00
    • European eel9/10
    • Whitefish9/10
    • Dace8/10
    • Grayling8/10
    • Pike8/10
    • Ruffe8/10
    • Zander8/10
    • Barbel7/10
    • Bream7/10
    • Perch7/10
    • Atlantic salmon6/10
    • Brown trout6/10
    • Carp6/10
    • Ide6/10
    • Rainbow trout6/10
    • Wels catfish6/10
    • Chub5/10
    • Roach5/10
    • Bleak4/10
    • Crucian carp4/10
    • White bream4/10
    • Rudd3/10
    • Tench3/10
    Bite activity:highmediumlow
    How this forecast is calculated
    8 SepTuesday, September 8
    +13°

    Cloudy · feels like +9°

    Low / high
    +5°…+14°
    Precipitation
    0.0 mm
    Wind
    13 mph NW
    Cloud cover
    100%
    Humidity
    66%
    Pressure
    1010 hPa
    00:00+7°—5 mphsouthwest wind, 5 mph92%3%
    01:00+7°—4 mphsouthwest wind, 4 mph93%17%
    02:00+6°—3 mphsouthwest wind, 3 mph95%43%
    03:00+5°—2 mphsouthwest wind, 2 mph97%77%
    04:00+5°—1 mphsouthwest wind, 1 mph98%100%
    05:00+5°—1 mphsouthwest wind, 1 mph99%100%
    06:00+5°—1 mphwest wind, 1 mph99%97%
    07:00+5°—2 mphwest wind, 2 mph97%88%
    08:00+7°—3 mphwest wind, 3 mph92%76%
    09:00+10°—5 mphnorthwest wind, 5 mph86%61%
    10:00+12°—7 mphnorthwest wind, 7 mph79%55%
    11:00+12°—11 mphnorthwest wind, 11 mph72%100%
    12:00+13°—13 mphnorthwest wind, 13 mph66%100%
    13:00+14°—15 mphnorthwest wind, 15 mph62%100%
    14:00+14°0.3 mm15 mphnorthwest wind, 15 mph61%94%
    15:00+14°0.3 mm15 mphnorthwest wind, 15 mph63%85%
    16:00+14°0.3 mm15 mphnorthwest wind, 15 mph65%74%
    17:00+13°0.3 mm14 mphnorthwest wind, 14 mph68%63%
    18:00+12°0.3 mm14 mphnorthwest wind, 14 mph72%54%
    19:00+12°0.3 mm13 mphnorthwest wind, 13 mph75%47%
    20:00+11°0.7 mm12 mphnorthwest wind, 12 mph78%44%
    21:00+11°0.7 mm11 mphnorthwest wind, 11 mph82%43%
    22:00+10°0.7 mm11 mphnorthwest wind, 11 mph87%44%
    23:00+9°0.7 mm10 mphwest wind, 10 mph90%45%
    +14°+9°+5°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Tuesday, September 8
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:47
    Sunset
    20:02
    Day length
    13 h 15 min
    Sunshine hours
    12 h 57 min
    UV index
    4
    moderate
    Moon
    Waning crescent
    Moonrise
    02:39
    Moonset
    19:14

    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

    +15% in the windowTuesday, September 8
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor02:09–03:09Moonrise
    • Major10:10–12:10Moon overhead
    • Minor18:44–19:44Moonset
    • Major22:37–00:00Moon 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?

    Recommendations

    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: worm bottom rig or fish strip bait.

    Gear

    Bring a warm jacket — it's noticeably colder on the water than on shore. Rain is expected — don't forget a rain jacket or a waterproof shell.