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© 2026·AI-powered bite forecast
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United Kingdom / Lancashire / Lower Coldwell Reservoir

Bite forecast: Lower Coldwell Reservoir

  • 5 ha
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Best fishing days for the next week

  1. SundaySeptember 6weather-based forecast
    62/100high activity

    Partly cloudy: 14–22 °C

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Lower Coldwell Reservoir (Lancashire) — a popular fishing spot. About 5 ha in area. Nearby towns: Nelson, Burnley and Accrington. 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.

MondaySeptember 7weather-based forecast
61/100high activity

Cloudy: 14–16 °C

  • TuesdaySeptember 8weather-based forecast
    57/100medium activity

    Drizzle: 12–15 °C

  • Nearby towns

    • Nelson3 mi
    • Burnley4 mi
    • Accrington10 mi

    Bite calendar

    Friday, September 4

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    PikeDaceEuropean eelRuffeWhitefishZanderBreamPerchRainbow troutBrown troutCarpWels catfishIdeRoachBleakChubCrucian carpWhite breamRuddTench

    Bleak

    3/10 · Weak

    Hourly activity

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

    The bite is weak — fish are sluggish. A thunderstorm is possible: activity rises before the front and drops after.

    Peak bite hours

    Best time — 11:00–17:00 (daytime activity).

    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. A thunderstorm is possible — bring a rain jacket, and pack up at the first rumble of thunder.

    Summary

    A slow day — go only if you really feel like it.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 15 °C — inside the 14–26 °C comfort range for Bleak, so baseline activity is high.

    Computed water temperature by month; the green band is the 14–26 °C comfort rangecomfort 14–26 °C15 °C
    JFMAMJJASOND

    Bleak feeds by day — between sunrise and sunset; their times are in the sun-and-moon card above.

    The day: daylight hours and when Bleak feeds0:0012:0024:00

    Pressure is rising 6 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 6 hPa change
    00:00 · 101023:00 · 1016 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 a slow season for Bleak: the best months fall at another time of year.

    JFMAMJJASOND

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

    4 SepFriday, September 4
    +17°

    Partly cloudy · feels like +12°

    Low / high
    +14°…+17°
    Precipitation
    0.0 mm
    Wind
    21 mph W
    Cloud cover
    66%
    Humidity
    67%
    Pressure
    1010 hPa
    00:00+14°2.2 mm5 mphsouth wind, 5 mph98%100%
    01:00+14°1.6 mm4 mphsouth wind, 4 mph98%100%
    02:00+14°2.8 mm4 mphsoutheast wind, 4 mph98%100%
    03:00+14°3.9 mm3 mphsouth wind, 3 mph98%100%
    04:00+14°2.3 mm3 mphwest wind, 3 mph98%100%
    05:00+14°1.8 mm5 mphsouthwest wind, 5 mph98%100%
    06:00+15°0.3 mm11 mphwest wind, 11 mph92%100%
    07:00+15°0.2 mm11 mphwest wind, 11 mph93%100%
    08:00+15°—13 mphwest wind, 13 mph87%100%
    09:00+15°—16 mphwest wind, 16 mph79%100%
    10:00+16°—19 mphwest wind, 19 mph73%100%
    11:00+16°—19 mphwest wind, 19 mph70%100%
    12:00+17°—21 mphwest wind, 21 mph67%66%
    13:00+17°—22 mphwest wind, 22 mph66%46%
    14:00+17°—22 mphwest wind, 22 mph67%72%
    15:00+17°—23 mphwest wind, 23 mph66%92%
    16:00+17°—22 mphwest wind, 22 mph69%93%
    17:00+17°0.4 mm19 mphwest wind, 19 mph76%6%
    18:00+17°—19 mphwest wind, 19 mph72%13%
    19:00+16°—15 mphwest wind, 15 mph76%3%
    20:00+15°—14 mphwest wind, 14 mph79%0%
    21:00+16°—17 mphwest wind, 17 mph79%92%
    22:00+15°—13 mphwest wind, 13 mph78%62%
    23:00+14°—14 mphwest wind, 14 mph71%0%
    +17°+16°+14°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Friday, September 4
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:24
    Sunset
    19:54
    Day length
    13 h 30 min
    Sunshine hours
    9 h 7 min
    UV index
    3
    moderate
    Moon
    Last quarter
    Moonrise
    22:19
    Moonset
    16:14

    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 windowFriday, September 4
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major05:47–07:47Moon overhead
    • Minor15:44–16:44Moonset
    • Major18:18–20:18Moon underfoot
    • Minor21:49–22:49Moonrise

    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?

    Nearby rivers

    • Trawden Brook2 mi
    • Walverden Water2 mi
    • Colne Water2 mi
    • Wycoller Brook3 mi
    • River Laneshaw3 mi
    • River Brun3 mi

    Nearby water bodies

    • ReservoirUpper Coldwell Reservoir0.2 mi
    • ReservoirWalverden Reservoir2 mi
    • ReservoirSwinden Reservoirs2 mi
    • ReservoirLee Green Reservoir2 mi
    • ReservoirWiddop Reservoir3 mi
    • ReservoirHurstwood Reservoir3 mi
    • ReservoirBarrowford Reservoir3 mi
    • ReservoirFoulridge Upper Reservoir3 mi
    • ReservoirUpper Gorple Reservoir3 mi
    • ReservoirRowley Lake3 mi