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Forecast
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© 2026·AI-powered bite forecast
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United Kingdom / Midlothian / Glencorse Reservoir

Bite forecast: Glencorse Reservoir

  • 22 ha
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    68/100high activity

    Cloudy: 9–13 °C

Loading map…

Glencorse Reservoir (Midlothian) — one of the area's fishing spots. About 22 ha in area. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

Catches

Recorded 27 catches here. Most commonly caught: Rainbow trout, Brown trout. Peak season: May–September.

  • Rainbow trout
    Glencorse Reservoir
    16 °C11 mph
    May 08, 2022, 2:51 PM
  • Rainbow trout
    Glencorse Reservoir
    16 °C11 mph
    May 08, 2022, 9:23 AM
  • Rainbow trout
    Glencorse Reservoir
    15 °C9 mph
    Sep 19, 2021, 11:36 AM
  • Rainbow trout
    Glencorse Reservoir
    15 °C9 mph
    Sep 19, 2021, 9:56 AM
  • Rainbow trout
    Glencorse Reservoir
    15 °C9 mph
    Sep 19, 2021, 9:07 AM
  • Brown trout
    Glencorse Reservoir
    15 °C9 mph
    Sep 19, 2021, 9:06 AM
  • Rainbow trout
    Glencorse Reservoir
    12 °C16 mph
    May 09, 2021, 1:55 PM
  • Rainbow trout
    Glencorse Reservoir
    12 °C16 mph
    May 09, 2021, 10:10 AM
WednesdaySeptember 2weather-based forecast
66/100high activity

Drizzle: 12–15 °C

  • ThursdaySeptember 3weather-based forecast
    63/100high activity

    Cloudy: 14–17 °C

  • BiteGuide·From anglers’ reports

    What actually worked on this water

    Based on 27 verified catchesPeriod: 2017–2022

    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

    01325
    252
    Rainbow troutBrown trout
    By fish species
    ValueCatchesShare
    Rainbow trout2593%
    Brown trout27%

    By month

    vertical axis — number of catches

    0714
    8514
    MayAugSep
    By month
    ValueCatchesShare
    May830%
    Aug519%
    Sep1452%

    By time of day

    vertical axis — number of catches

    047
    7443441
    10111213141516
    By time of day
    ValueCatchesShare
    10:00726%
    11:00415%
    12:00415%
    13:00311%
    14:00415%
    15:00415%
    16:0014%

    Air temperature, °C

    vertical axis — number of catches

    01019
    819
    1015
    Air temperature, °C
    ValueCatchesShare
    10–14 °C830%
    15–19 °C1970%

    Pressure, mmHg

    vertical axis — number of catches

    047
    454572
    720730735740745755
    Pressure, mmHg
    ValueCatchesShare
    720–724 mmHg415%
    730–734 mmHg519%
    735–739 mmHg415%
    740–744 mmHg519%
    745–749 mmHg726%
    755–759 mmHg27%

    Wind direction

    vertical axis — number of catches

    0611
    52911
    ESESSW
    Wind direction
    ValueCatchesShare
    E519%
    SE27%
    S933%
    SW1141%

    Wind speed, mph

    vertical axis — number of catches

    0612
    27126
    04913
    Wind speed, mph
    ValueCatchesShare
    0–2 mph27%
    4–7 mph726%
    9–11 mph1244%
    13–16 mph622%

    Nearby rivers

    • Water of Leith3 mi
    • Bilston Burn5 mi
    • Redside Burn7 mi

    Nearby water bodies

    • ReservoirLoganlea Reservoir1 mi
    • ReservoirThreipmuir Reservoir1 mi
    • ReservoirBonaly Reservoir2 mi
    • ReservoirHarlaw Reservoir2 mi
    • ReservoirClubbiedean Reservoir2 mi
    • ReservoirThreipmuir Reservoir2 mi
    • ReservoirTorduff Reservoir2 mi
    • LakeHigh Pond3 mi
    • ReservoirBavelaw Marsh3 mi
    • ReservoirQuarrel Burn Reservoir3 mi

    Bite calendar

    Wednesday, September 2

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    DaceEuropean eelPikeRuffeWhitefishBreamCarpWels catfishZanderBrown troutPerchRainbow troutChubIdeCrucian carpRoachWhite breamBleakRuddTench

    Bleak

    4/10 · Weak

    Hourly activity

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

    The bite is moderate — fish feed in short bursts. Pressure is rising — activity tends to be more subdued.

    Peak bite hours

    Best time — 11:00–12:00 and 13:00–16:00 (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

    Pack transitional-season clothing — mornings and evenings are chilly. Rain is expected — don't forget a rain jacket or a waterproof shell.

    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 — colder than the 14–26 °C comfort range for Bleak: the fish conserves energy and takes more cautiously.

    Computed water temperature by month; the green band is the 14–26 °C comfort rangecomfort 14–26 °C14 °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 dropping 5 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 5 hPa change
    00:00 · 101523:00 · 1009 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 average month for Bleak here.

    JFMAMJJASOND

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

    2 SepWednesday, September 2
    +13°

    Drizzle · feels like +13°

    Low / high
    +12°…+15°
    Precipitation
    0.1 mm
    Wind
    4 mph NE
    Cloud cover
    100%
    Humidity
    95%
    Pressure
    1014 hPa
    00:00+13°—6 mphsouthwest wind, 6 mph91%98%
    01:00+13°—3 mphwest wind, 3 mph92%100%
    02:00+13°—4 mphsouthwest wind, 4 mph92%100%
    03:00+13°—3 mphsouthwest wind, 3 mph94%100%
    04:00+13°0.1 mm3 mphsouthwest wind, 3 mph95%100%
    05:00+13°1.7 mm2 mphwest wind, 2 mph98%100%
    06:00+12°0.4 mm3 mphnortheast wind, 3 mph99%100%
    07:00+12°0.2 mm3 mpheast wind, 3 mph99%100%
    08:00+12°0.6 mm2 mphnortheast wind, 2 mph99%100%
    09:00+12°0.6 mm4 mpheast wind, 4 mph98%100%
    10:00+12°—5 mphnortheast wind, 5 mph98%100%
    11:00+13°—4 mphnortheast wind, 4 mph96%100%
    12:00+13°0.1 mm4 mphnortheast wind, 4 mph95%100%
    13:00+14°—4 mphnortheast wind, 4 mph93%100%
    14:00+14°0.1 mm4 mphnortheast wind, 4 mph93%100%
    15:00+15°—4 mphnortheast wind, 4 mph94%100%
    16:00+14°0.8 mm3 mphnortheast wind, 3 mph98%100%
    17:00+15°0.2 mm4 mphnortheast wind, 4 mph97%100%
    18:00+15°0.1 mm3 mphnorth wind, 3 mph97%100%
    19:00+15°—3 mphnorth wind, 3 mph98%99%
    20:00+15°—1 mphnorthwest wind, 1 mph99%100%
    21:00+14°—1 mphwest wind, 1 mph99%99%
    22:00+15°—2 mphwest wind, 2 mph98%100%
    23:00+15°—2 mphsouth wind, 2 mph97%100%
    +15°+14°+12°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Wednesday, September 2
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:18
    Sunset
    20:04
    Day length
    13 h 46 min
    Sunshine hours
    0 min
    UV index
    1
    low
    Moon
    Waning gibbous
    Moonrise
    20:57
    Moonset
    13:37

    The day is 5 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 windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major03:56–05:56Moon overhead
    • Minor13:07–14:07Moonset
    • Major16:23–18:23Moon underfoot
    • Minor20:27–21:27Moonrise

    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?