Where to fish

  • Forecast
  • Catches

Mine

  • Favorites

Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
ForecastCatchesFavorites
AboutHow the forecast worksWhere fish livePrivacyTerms[email protected]
© 2026·AI-powered bite forecast
0.1.0+2163 · 92c14a40

We use cookies for analytics and advertising. Cookies necessary for the site to function are always kept. Learn more

Ireland / County Donegal / Clonkillybeg Lough

Bite forecast: Clonkillybeg Lough

  • 3 ha
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    70/100high activity

    Cloudy: 9–12 °C

Loading map…

Nearby rivers

  • Glaskeelan River5 mi
  • Owencarrow River5 mi
  • Leannan River6 mi

Nearby water bodies

  • LakeCloncarney Lough0.8 mi
  • LakeGannon's Lough1 mi
  • LakeIrvine's Lough2 mi
  • LakeLough Acrappan4 mi
  • LakeLough Acrobane4 mi
  • LakeLough Salt4 mi
  • LakeLough Greenan4 mi
  • LakeLough Fern4 mi
  • LakeMeenlaragh Lough4 mi
  • LakeLough Reelan5 mi

Clonkillybeg Lough (County Donegal) — a spot well known among anglers. About 3 ha in area. Close by — Letterkenny, Milford and Ramelton. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

MondaySeptember 7weather-based forecast
65/100high activity

Cloudy: 11–14 °C

  • ThursdaySeptember 3weather-based forecast
    62/100high activity

    Drizzle: 14–16 °C

  • Nearby towns

    • Letterkenny6 mi
    • Milford6 mi
    • Ramelton7 mi

    Bite calendar

    7–Sep 13
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    European eelPikeBreamPerchBrown troutCarpRainbow troutRoachWhite breamBleakRuddTench

    Bleak

    3/10 · Weak

    Hourly activity

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

    The bite is weak — fish are sluggish. Pressure is dropping — this usually boosts the bite.

    Peak bite hours

    Best time — 10:00–17:00 (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

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

    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 12 °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 °C12 °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 8 hPa over the day — the bite usually settles down after a rise.

    Pressure through the day, 8 hPa change
    00:00 · 100723:00 · 1015 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

    8 SepTuesday, September 8
    +12°

    Drizzle · feels like +9°

    Low / high
    +10°…+12°
    Precipitation
    0.5 mm
    Wind
    11 mph NW
    Cloud cover
    52%
    Humidity
    81%
    Pressure
    1012 hPa
    00:00+10°—5 mphsouth wind, 5 mph89%72%
    01:00+10°—5 mphsouth wind, 5 mph88%100%
    02:00+10°0.3 mm4 mphsouthwest wind, 4 mph89%100%
    03:00+10°0.3 mm4 mphwest wind, 4 mph91%100%
    04:00+10°0.3 mm5 mphwest wind, 5 mph92%100%
    05:00+10°0.1 mm5 mphwest wind, 5 mph91%93%
    06:00+10°0.1 mm5 mphnorthwest wind, 5 mph90%84%
    07:00+10°0.1 mm6 mphnorthwest wind, 6 mph87%78%
    08:00+11°—7 mphnorthwest wind, 7 mph83%81%
    09:00+11°—8 mphnorthwest wind, 8 mph78%88%
    10:00+12°—9 mphnorthwest wind, 9 mph75%89%
    11:00+12°0.5 mm10 mphnorthwest wind, 10 mph82%57%
    12:00+12°0.5 mm11 mphnorthwest wind, 11 mph81%52%
    13:00+12°0.5 mm12 mphnorthwest wind, 12 mph80%47%
    14:00+12°0.3 mm12 mphnorthwest wind, 12 mph80%42%
    15:00+12°0.3 mm12 mphnorthwest wind, 12 mph81%37%
    16:00+12°0.3 mm11 mphnorthwest wind, 11 mph82%32%
    17:00+11°0.3 mm11 mphnorthwest wind, 11 mph83%28%
    18:00+11°0.3 mm11 mphnorthwest wind, 11 mph84%25%
    19:00+11°0.3 mm10 mphnorthwest wind, 10 mph85%23%
    20:00+11°0.2 mm10 mphnorthwest wind, 10 mph86%23%
    21:00+11°0.2 mm9 mphnorthwest wind, 9 mph88%23%
    22:00+11°0.2 mm9 mphnorthwest wind, 9 mph89%25%
    23:00+11°0.2 mm9 mphnorthwest wind, 9 mph90%28%
    +12°+11°+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
    06:51
    Sunset
    20:07
    Day length
    13 h 16 min
    Sunshine hours
    13 h
    UV index
    4
    moderate
    Moon
    Waning crescent
    Moonrise
    02:43
    Moonset
    19:18

    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
    • Minor02:13–03:13Moonrise
    • Major10:15–12:15Moon overhead
    • Minor18:48–19:48Moonset
    • Major22:41–00:00Moon 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?