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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / Caerphilly County Borough

Caerphilly County Borough — bite forecast

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Towns and settlements (3)
CaerphillyNew TredegarRhymney
Rivers (7)
Sirhowy River

6 more — find yours by name.

Water bodies (8)
Butetown ReservoirFochriw Feeder PondJepson's PondLodge LakeMatch PondNant-y-draenog ReservoirOgilvie LakeRhaslas Pond

Best fishing days for the next week

  1. SundaySeptember 6weather-based forecast
    61/100high activity

    Drizzle: 15–20 °C

Which fish are caught here

  • Brown trout4 catches
  • Grayling1 catch

Catches

Recorded 5 catches here. Most commonly caught: Brown trout, Grayling. Peak season: March–November.

  • Grayling
    Rhymney River
    15 °C4 mph
    Nov 13, 2022, 11:39 AM

Caerphilly County Borough — a region with rich fishing opportunities. The region has 3 cities, 7 rivers and 8 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.

TuesdaySeptember 8weather-based forecast
61/100high activity

Cloudy: 12–17 °C

  • ThursdaySeptember 3weather-based forecast
    60/100high activity

    Cloudy: 16–20 °C

  • Brown trout
    Ebbw River
    8 °C13 mph
    Mar 27, 2021, 2:31 PM
  • Brown trout
    Rhymney River
    19 °C9 mph
    Sep 22, 2020, 1:20 PM
  • Brown trout
    Rhymney River
    17 °C13 mph
    Aug 06, 2017, 12:35 PM
  • Brown trout
    Rhymney River
    16 °C9 mph
    Aug 05, 2017, 8:44 AM
  • 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
    • European eel9/10
    • Pike9/10
    • Barbel8/10
    • Dace8/10
    • Grayling8/10
    • Ruffe8/10
    • Whitefish8/10
    • Zander8/10
    • Perch7/10
    • Atlantic salmon6/10
    • Bream6/10
    • Brown trout6/10
    • Carp6/10
    • Rainbow trout6/10
    • Wels catfish6/10
    • Ide5/10
    • Roach5/10
    • Bleak4/10
    • Chub4/10
    • Crucian carp4/10
    • White bream4/10
    • Rudd3/10
    • Tench3/10
    Bite activity:highmediumlow
    How this forecast is calculated
    6 SepSunday, September 6
    +19°

    Drizzle · feels like +18°

    Low / high
    +15°…+20°
    Precipitation
    0.1 mm
    Wind
    14 mph SW
    Cloud cover
    97%
    Humidity
    85%
    Pressure
    1014 hPa
    00:00+15°—7 mphsouth wind, 7 mph94%100%
    01:00+15°—7 mphsouth wind, 7 mph93%100%
    02:00+15°0.1 mm6 mphsouth wind, 6 mph93%99%
    03:00+15°0.1 mm5 mphsouth wind, 5 mph93%96%
    04:00+15°0.1 mm5 mphsouth wind, 5 mph94%94%
    05:00+15°—5 mphsouth wind, 5 mph96%91%
    06:00+15°—5 mphsouth wind, 5 mph97%88%
    07:00+15°—5 mphsouth wind, 5 mph98%86%
    08:00+16°—6 mphsouth wind, 6 mph97%88%
    09:00+17°—8 mphsouth wind, 8 mph94%91%
    10:00+18°—10 mphsouthwest wind, 10 mph91%94%
    11:00+18°0.1 mm12 mphsouthwest wind, 12 mph88%96%
    12:00+19°0.1 mm14 mphsouthwest wind, 14 mph85%97%
    13:00+19°0.1 mm16 mphsouthwest wind, 16 mph83%98%
    14:00+20°0.1 mm16 mphsouthwest wind, 16 mph82%99%
    15:00+20°0.1 mm15 mphsouthwest wind, 15 mph82%99%
    16:00+20°0.1 mm15 mphsouthwest wind, 15 mph83%98%
    17:00+20°1.2 mm16 mphsouthwest wind, 16 mph87%96%
    18:00+19°1.2 mm17 mphsouthwest wind, 17 mph91%92%
    19:00+19°1.2 mm17 mphsouthwest wind, 17 mph95%91%
    20:00+18°0.2 mm16 mphsouthwest wind, 16 mph96%94%
    21:00+18°0.2 mm15 mphsouthwest wind, 15 mph96%100%
    22:00+17°0.2 mm13 mphwest wind, 13 mph95%100%
    23:00+16°—13 mphwest wind, 13 mph93%91%
    +20°+17°+15°
    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
    19:48
    Day length
    13 h 15 min
    Sunshine hours
    12 h 41 min
    UV index
    4
    moderate
    Moon
    Waning crescent
    Moonrise
    —
    Moonset
    17:51

    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

    +12% in the windowSunday, September 6
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major07:57–09:57Moon overhead
    • Minor17:21–18:21Moonset
    • 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

    Look for drop-offs and gaps in the weeds, retrieve slowly, lingering over promising spots.

    Lures

    The water's turning murky — go with bright, noisy lures: worm bottom rig or fish strip bait.

    Gear

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