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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
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United Kingdom / Merthyr Tydfil County Borough

Merthyr Tydfil County Borough — bite forecast

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Towns and settlements (2)
Merthyr TydfilTreharris
Rivers (5)
Bargod TafNant MorlaisRiver TaffTaf FawrTaf Fechan
Water bodies (4)
Llwyn-onn ReservoirMiddle PondTaff Bargoed LakeTop Pond

Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    68/100high activity

    Partly cloudy: 10–15 °C

Which fish are caught here

  • Brown trout2 catches

Catches

Recorded 2 catches here. Most commonly caught: Brown trout. Peak season: March–April.

  • Brown trout
    River Taff
    8 °C18 mph
    Mar 08, 2022, 12:56 PM

Merthyr Tydfil County Borough — a land of rivers, lakes, and reservoirs. The region has 2 cities, 5 rivers and 4 water bodies. Species found here: bleak, roach, rainbow trout, wels catfish, ide and ruffe. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.

SundaySeptember 6weather-based forecast
66/100high activity

Partly cloudy: 13–22 °C

  • MondaySeptember 7weather-based forecast
    56/100medium activity

    Drizzle: 13–17 °C

  • Brown trout
    River Taff
    11 °C16 mph
    Apr 16, 2018, 2:22 PM

    Bite calendar

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

    Bite on rivers

    6 SepSunday, September 6

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

    0:0023:00
    • Dace9/10
    • European eel9/10
    • Grayling9/10
    • Pike9/10
    • Whitefish9/10
    • Barbel8/10
    • Ruffe8/10
    • Zander8/10
    • Bream7/10
    • Carp7/10
    • Perch7/10
    • Wels catfish7/10
    • Atlantic salmon6/10
    • Brown trout6/10
    • Rainbow trout6/10
    • Chub5/10
    • Crucian carp5/10
    • Ide5/10
    • Roach5/10
    • Bleak4/10
    • Rudd4/10
    • Tench4/10
    • White bream4/10
    Bite activity:highmediumlow
    How this forecast is calculated
    6 SepSunday, September 6
    +18°

    Partly cloudy · feels like +17°

    Low / high
    +13°…+22°
    Precipitation
    0.0 mm
    Wind
    11 mph SSE
    Cloud cover
    56%
    Humidity
    75%
    Pressure
    1020 hPa
    00:00+14°—2 mphsoutheast wind, 2 mph75%59%
    01:00+14°—2 mphsoutheast wind, 2 mph77%100%
    02:00+14°—2 mphsoutheast wind, 2 mph78%100%
    03:00+13°—3 mphsoutheast wind, 3 mph81%54%
    04:00+13°—3 mpheast wind, 3 mph81%100%
    05:00+13°0.1 mm3 mphsoutheast wind, 3 mph86%100%
    06:00+13°—4 mphsoutheast wind, 4 mph91%100%
    07:00+14°—6 mphsoutheast wind, 6 mph92%100%
    08:00+14°0.1 mm7 mphsoutheast wind, 7 mph92%100%
    09:00+14°1.1 mm6 mphsoutheast wind, 6 mph91%100%
    10:00+16°—7 mphsoutheast wind, 7 mph88%100%
    11:00+17°—9 mphsouth wind, 9 mph79%74%
    12:00+18°—11 mphsouth wind, 11 mph75%56%
    13:00+20°—12 mphsouth wind, 12 mph65%100%
    14:00+21°—12 mphsouth wind, 12 mph60%23%
    15:00+21°—11 mphsouth wind, 11 mph57%100%
    16:00+22°—11 mphsouth wind, 11 mph56%100%
    17:00+22°—10 mphsouth wind, 10 mph58%100%
    18:00+21°—10 mphsouthwest wind, 10 mph64%100%
    19:00+19°—9 mphsouthwest wind, 9 mph72%100%
    20:00+18°0.0 mm8 mphsouthwest wind, 8 mph82%100%
    21:00+18°0.1 mm8 mphsouthwest wind, 8 mph89%100%
    22:00+18°0.1 mm10 mphsouthwest wind, 10 mph94%100%
    23:00+17°0.1 mm11 mphsouthwest wind, 11 mph96%99%
    +22°+17°+13°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Sunday, September 6
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:33
    Sunset
    19:49
    Day length
    13 h 16 min
    Sunshine hours
    8 h 11 min
    UV index
    4
    moderate
    Moon
    Waning crescent
    Moonrise
    —
    Moonset
    17:52

    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 windowSunday, September 6
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major07:58–09:58Moon overhead
    • Minor17:22–18:22Moonset
    • Major20:28–22:28Moon 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

    Chum one spot near a drop-off and wait for fish to arrive — don't chase them.

    Lures

    Today's bait — maggot or small hook with dough bait. In cold or murky water, add scent to your chum.

    Gear

    No special gear needed — seasonal clothing will do. Rain is expected — don't forget a rain jacket or a waterproof shell.