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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 2weather-based forecast
    56/100medium activity

    Drizzle: 15–19 °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

    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
    • Whitefish9/10
    • Barbel8/10
    • Dace8/10
    • Grayling8/10
    • Pike8/10
    • Ruffe8/10
    • Zander8/10
    • European eel7/10
    • Perch7/10
    • Atlantic salmon6/10
    • Bream6/10
    • Rainbow trout6/10
    • Brown trout5/10
    • Carp5/10
    • Ide5/10
    • Roach5/10
    • Wels catfish5/10
    • Chub4/10
    • Crucian carp4/10
    • Bleak3/10
    • Rudd3/10
    • Tench3/10
    • White bream3/10
    Bite activity:highmediumlow
    How this forecast is calculated
    8 SepTuesday, September 8
    +13°

    Drizzle · feels like +12°

    Low / high
    +10°…+13°
    Precipitation
    0.6 mm
    Wind
    0 mph WNW
    Cloud cover
    90%
    Humidity
    76%
    Pressure
    1008 hPa
    00:00+12°2.3 mm8 mphwest wind, 8 mph94%100%
    01:00+11°2.3 mm7 mphwest wind, 7 mph93%100%
    02:00+11°0.3 mm7 mphwest wind, 7 mph93%100%
    03:00+11°0.3 mm7 mphwest wind, 7 mph93%100%
    04:00+11°0.3 mm6 mphwest wind, 6 mph94%100%
    05:00+10°0.8 mm5 mphwest wind, 5 mph95%69%
    06:00+10°0.8 mm3 mphwest wind, 3 mph96%27%
    07:00+10°0.8 mm2 mphsouthwest wind, 2 mph96%6%
    08:00+11°—2 mphwest wind, 2 mph92%27%
    09:00+12°—2 mphwest wind, 2 mph87%69%
    10:00+13°—2 mphwest wind, 2 mph82%100%
    11:00+12°0.6 mm0 mphwest wind, 0 mph80%72%
    12:00+13°0.6 mm0 mphnorthwest wind, 0 mph76%90%
    13:00+13°0.6 mm1 mphnorthwest wind, 1 mph73%100%
    14:00+13°0.5 mm2 mphnorthwest wind, 2 mph72%100%
    15:00+13°0.5 mm4 mphnorthwest wind, 4 mph71%93%
    16:00+13°0.5 mm6 mphnorthwest wind, 6 mph72%82%
    17:00+13°0.5 mm7 mphnorthwest wind, 7 mph73%69%
    18:00+12°0.5 mm9 mphnorthwest wind, 9 mph74%58%
    19:00+12°0.5 mm10 mphnorthwest wind, 10 mph75%50%
    20:00+12°—11 mphnorthwest wind, 11 mph77%46%
    21:00+11°—11 mphnorthwest wind, 11 mph79%42%
    22:00+11°—11 mphnorthwest wind, 11 mph82%40%
    23:00+10°—11 mphnorthwest wind, 11 mph84%39%
    +13°+12°+10°
    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
    06:36
    Sunset
    19:43
    Day length
    13 h 7 min
    Sunshine hours
    12 h 18 min
    UV index
    4
    moderate
    Moon
    Waning crescent
    Moonrise
    02:41
    Moonset
    18:46

    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 windowTuesday, September 8
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor02:11–03:11Moonrise
    • Major09:55–11:55Moon overhead
    • Minor18:16–19:16Moonset
    • Major22:22–00:00Moon 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

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

    Lures

    Today's bait — jig fly with bloodworm or small fly. In cold or murky water, add scent to your chum.

    Gear

    Pack transitional-season clothing — mornings and evenings are chilly. A thunderstorm is possible — bring a rain jacket, and pack up at the first rumble of thunder.