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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
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© 2026·AI-powered bite forecast
0.1.0+2163 · 92c14a40

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United Kingdom / Monmouthshire / River Wye

Bite forecast: River Wye

  • length 10 km
  • Flows into Severn Estuary
Loading map…

Best fishing days for the next week

  1. SundaySeptember 6weather-based forecast
    58/100medium activity

    Partly cloudy: 12–22 °C

River Wye (Monmouthshire) — a spot well known among anglers. About 10 km long. Flows into Severn Estuary. Nearby towns: Monmouth and Chepstow. This page shows an hourly bite forecast for today and the week ahead; the algorithm factors in the weather, atmospheric pressure, and the moon phase.

WednesdaySeptember 9weather-based forecast
58/100medium activity

Cloudy: 9–16 °C

  • ThursdaySeptember 3weather-based forecast
    56/100medium activity

    Cloudy: 17–21 °C

  • Nearby towns

    • Monmouth0.2 mi
    • Chepstow10 mi

    Nearby rivers

    • River Monnow5 mi
    • Lydd7 mi
    • Lyd8 mi
    • River Trothy8 mi
    • River Wye9 mi

    Nearby water bodies

    • LakeNoxon Pond6 mi
    • ReservoirThe Yeld6 mi
    • LakeCannop Ponds6 mi
    • LakeCannop Ponds6 mi
    • LakeSpeech House Lake7 mi
    • LakeWoorgreens Lake7 mi
    • LakeMallards Pike8 mi
    • LakeSteamills Lake8 mi
    • LakeSoudley Ponds9 mi

    Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    DaceEuropean eelGraylingPikeWhitefishBarbelRuffeZanderAtlantic salmonBreamPerchBrown troutCarpWels catfishRainbow troutRoachChubCrucian carpIdeBleakRuddTenchWhite bream

    Atlantic salmon

    6/10 · Fair

    Hourly activity

    0:006:0012:0018:0023:00
    Bite activity:highmediumlow

    The bite is moderate — fish feed in short bursts. A thunderstorm is possible: activity rises before the front and drops after.

    Peak bite hours

    Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (dusk bite).

    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: salmon spoon or salmon fly.

    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.

    Summary

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 14 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.

    Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C14 °C
    JFMAMJJASOND

    Atlantic salmon works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.

    The day: daylight hours and when Atlantic salmon feeds0:0012:0024:00

    Pressure is rising 2 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 2 hPa change
    00:00 · 101023:00 · 1012 hPa

    One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.

    Feeding windows on the day scale0:0012:0024:00

    September is an active season for Atlantic salmon here.

    JFMAMJJASOND

    These are the same values the bite curve above was computed from. How the forecast works

    8 SepTuesday, September 8
    +13°

    Drizzle · feels like +12°

    Low / high
    +10°…+14°
    Precipitation
    0.4 mm
    Wind
    3 mph WSW
    Cloud cover
    91%
    Humidity
    75%
    Pressure
    1008 hPa
    00:00+13°2.8 mm6 mphwest wind, 6 mph90%100%
    01:00+12°2.8 mm4 mphwest wind, 4 mph91%100%
    02:00+11°—4 mphwest wind, 4 mph91%94%
    03:00+10°—4 mphsouthwest wind, 4 mph91%84%
    04:00+10°—4 mphsouthwest wind, 4 mph91%72%
    05:00+10°1.2 mm3 mphsouth wind, 3 mph93%51%
    06:00+10°1.2 mm3 mphsouth wind, 3 mph95%27%
    07:00+10°1.2 mm3 mphsouth wind, 3 mph95%17%
    08:00+11°—2 mphsouthwest wind, 2 mph91%34%
    09:00+12°—2 mphwest wind, 2 mph84%64%
    10:00+13°—2 mphnorthwest wind, 2 mph79%88%
    11:00+13°0.4 mm3 mphwest wind, 3 mph79%75%
    12:00+13°0.4 mm3 mphsouthwest wind, 3 mph75%91%
    13:00+14°0.4 mm4 mphsouthwest wind, 4 mph72%100%
    14:00+14°0.6 mm5 mphsouthwest wind, 5 mph71%99%
    15:00+14°0.6 mm6 mphwest wind, 6 mph71%93%
    16:00+13°0.6 mm7 mphwest wind, 7 mph72%83%
    17:00+13°0.6 mm8 mphwest wind, 8 mph73%72%
    18:00+13°0.6 mm9 mphnorthwest wind, 9 mph74%63%
    19:00+12°0.6 mm10 mphnorthwest wind, 10 mph75%58%
    20:00+12°0.1 mm11 mphnorthwest wind, 11 mph76%60%
    21:00+12°0.1 mm11 mphnorthwest wind, 11 mph78%65%
    22:00+11°0.1 mm11 mphnorthwest wind, 11 mph80%73%
    23:00+11°0.1 mm11 mphnorthwest wind, 11 mph81%80%
    +14°+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
    06:34
    Sunset
    19:42
    Day length
    13 h 8 min
    Sunshine hours
    12 h 37 min
    UV index
    4
    moderate
    Moon
    Waning crescent
    Moonrise
    02:38
    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

    +13% in the windowTuesday, September 8
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Minor02:08–03:08Moonrise
    • Major09:54–11:54Moon overhead
    • Minor18:16–19:16Moonset
    • Major22:21–00:00Moon 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?
    Loading map…

    Catches

    Recorded 6 catches here. Most commonly caught: Barbel, Grass carp, Roach. Peak season: July–September.

    • Grass carp
      River Wye
      17 °C11 mph
      Sep 02, 2019, 2:36 PM
    • Barbel
      River Wye
      21 °C9 mph
      Jul 29, 2019, 1:43 PM
    • Barbel
      River Wye
      21 °C9 mph
      Jul 29, 2019, 1:32 PM
    • Barbel
      River Wye
      21 °C7 mph
      Aug 16, 2016, 3:43 PM
    • Barbel
      River Wye
      20 °C7 mph
      Jul 27, 2016, 12:54 PM
    • Roach
      River Wye
      20 °C7 mph
      Jul 27, 2016, 12:22 PM

    BiteGuide·From anglers’ reports

    What actually worked on this water

    Based on 6 verified catchesPeriod: 2016–2019

    This is a summary of anglers' reports, not a proven cause of the bite: conditions lining up does not mean they drove it.

    By fish species

    vertical axis — number of catches

    024
    411
    BarbelGrass carpRoach
    By fish species
    ValueCatchesShare
    Barbel467%
    Grass carp117%
    Roach117%

    By month

    vertical axis — number of catches

    024
    411
    JulAugSep
    By month
    ValueCatchesShare
    Jul467%
    Aug117%
    Sep117%

    By time of day

    vertical axis — number of catches

    012
    2211
    13141516
    By time of day
    ValueCatchesShare
    13:00233%
    14:00233%
    15:00117%
    16:00117%

    Air temperature, °C

    vertical axis — number of catches

    035
    15
    1520
    Air temperature, °C
    ValueCatchesShare
    15–19 °C117%
    20–24 °C583%

    Pressure, mmHg

    vertical axis — number of catches

    024
    411
    755760765
    Pressure, mmHg
    ValueCatchesShare
    755–759 mmHg467%
    760–764 mmHg117%
    765–769 mmHg117%

    Wind direction

    vertical axis — number of catches

    023
    123
    ESW
    Wind direction
    ValueCatchesShare
    E117%
    S233%
    W350%

    Wind speed, mph

    vertical axis — number of catches

    023
    33
    49
    Wind speed, mph
    ValueCatchesShare
    4–7 mph350%
    9–11 mph350%

    Measured river conditions are available for River Wye: current gauge height, streamflow, and water temperature when reported by the source.

    Water

    Gauge height
    1.01 m

    Environment Agency gauge River Wye at Lydbrook, 6 mi away · typical 0.42–4.00 m · measured 2026-09-02 23:00 · data source · provisional data, subject to revision