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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
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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
    63/100high activity

    Partly cloudy: 14–21 °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.

ThursdaySeptember 3weather-based forecast
61/100high activity

Cloudy: 17–20 °C

  • WednesdaySeptember 9weather-based forecast
    59/100medium activity

    Partly cloudy: 9–15 °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

    Thursday, September 3

    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

    3 SepThursday, September 3

    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
    • Grayling9/10
    • Barbel8/10
    • European eel8/10
    • Pike8/10
    • Ruffe8/10
    • Whitefish8/10
    • Bream7/10
    • Carp7/10
    • Perch7/10
    • Zander7/10
    • Atlantic salmon6/10
    • Brown trout6/10
    • Rainbow trout6/10
    • Wels catfish6/10
    • Crucian carp5/10
    • Ide5/10
    • Roach5/10
    • Bleak4/10
    • Chub4/10
    • Rudd4/10
    • Tench4/10
    • White bream4/10
    Bite activity:highmediumlow
    How this forecast is calculated
    3 SepThursday, September 3
    +19°

    Cloudy · feels like +18°

    Low / high
    +16°…+20°
    Precipitation
    0.0 mm
    Wind
    11 mph WSW
    Cloud cover
    98%
    Humidity
    78%
    Pressure
    1018 hPa
    00:00+17°0.5 mm12 mphsouthwest wind, 12 mph98%100%
    01:00+18°0.3 mm12 mphwest wind, 12 mph98%100%
    02:00+17°—9 mphsouthwest wind, 9 mph96%100%
    03:00+17°—11 mphwest wind, 11 mph91%100%
    04:00+16°—9 mphsouthwest wind, 9 mph92%100%
    05:00+17°—9 mphwest wind, 9 mph92%100%
    06:00+17°—10 mphwest wind, 10 mph90%100%
    07:00+17°—8 mphsouthwest wind, 8 mph91%100%
    08:00+17°—7 mphsouthwest wind, 7 mph91%100%
    09:00+17°—9 mphwest wind, 9 mph87%100%
    10:00+18°—10 mphwest wind, 10 mph84%100%
    11:00+19°—10 mphsouthwest wind, 10 mph80%97%
    12:00+19°—11 mphsouthwest wind, 11 mph78%98%
    13:00+20°—12 mphsouthwest wind, 12 mph77%77%
    14:00+20°—13 mphsouthwest wind, 13 mph77%93%
    15:00+19°—14 mphsouthwest wind, 14 mph78%85%
    16:00+19°—14 mphsouthwest wind, 14 mph79%90%
    17:00+18°0.3 mm13 mphsouthwest wind, 13 mph89%91%
    18:00+18°—14 mphsouthwest wind, 14 mph83%89%
    19:00+18°—12 mphsouthwest wind, 12 mph84%90%
    20:00+17°—11 mphsouthwest wind, 11 mph86%99%
    21:00+17°0.3 mm11 mphsouthwest wind, 11 mph96%100%
    22:00+17°0.4 mm13 mphsouthwest wind, 13 mph94%100%
    23:00+17°0.2 mm16 mphsouthwest wind, 16 mph93%100%
    +20°+18°+16°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Thursday, September 3
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:28
    Sunset
    19:55
    Day length
    13 h 27 min
    Sunshine hours
    3 h 47 min
    UV index
    2
    low
    Moon
    Last quarter
    Moonrise
    21:56
    Moonset
    14:40

    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 windowThursday, September 3
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major04:52–06:52Moon overhead
    • Minor14:10–15:10Moonset
    • Major17:21–19:21Moon underfoot
    • Minor21:26–22:26Moonrise

    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

    Pick a stretch of steady current, chum one spot and fish it — don't move around without reason.

    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.