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Forecast
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© 2026·AI-powered bite forecast
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Ireland / County Dublin / River Owendoher

Bite forecast: River Owendoher

  • length 26 km
  • Flows into River Dodder
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 2weather-based forecast
    57/100medium activity

    Cloudy: 16–22 °C

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River Owendoher (County Dublin) — a spot well known among anglers. About 26 km long. Flows into River Dodder. Close by — Dundrum, Tallaght and Dublin. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

TuesdaySeptember 8weather-based forecast
55/100medium activity

Cloudy: 11–18 °C

  • ThursdaySeptember 3weather-based forecast
    53/100medium activity

    Cloudy: 16–21 °C

  • Nearby towns

    • Dundrum2 mi
    • Tallaght3 mi
    • Dublin4 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?
    PikeEuropean eelBreamCarpPerchAtlantic salmonRainbow troutBrown troutRoachBleakWhite breamRuddTench

    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 — 06:00–07:00 (dawn bite) and 20:00–22:00 (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

    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

    An average day — best chances during peak windows.

    How this forecast is calculated

    Why this forecast

    The computed water temperature is around 17 °C — warmer than the 4–14 °C comfort range for Atlantic salmon: in the heat it drops deeper and feeds less often.

    Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C17 °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 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 · 101723:00 · 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

    2 SepWednesday, September 2
    +20°

    Cloudy · feels like +20°

    Low / high
    +15°…+22°
    Precipitation
    0.0 mm
    Wind
    11 mph WSW
    Cloud cover
    88%
    Humidity
    80%
    Pressure
    1011 hPa
    00:00+17°0.1 mm7 mphsouthwest wind, 7 mph81%100%
    01:00+16°0.3 mm6 mphsouthwest wind, 6 mph85%100%
    02:00+16°0.6 mm5 mphsouthwest wind, 5 mph90%100%
    03:00+15°0.6 mm6 mphsoutheast wind, 6 mph94%100%
    04:00+15°2.3 mm6 mphsoutheast wind, 6 mph97%100%
    05:00+15°3.1 mm7 mphsoutheast wind, 7 mph97%100%
    06:00+16°1.8 mm8 mphsoutheast wind, 8 mph96%100%
    07:00+16°5.4 mm7 mphsoutheast wind, 7 mph98%100%
    08:00+16°1.6 mm4 mphsouth wind, 4 mph96%100%
    09:00+17°—7 mphwest wind, 7 mph94%97%
    10:00+19°—6 mphsouthwest wind, 6 mph89%90%
    11:00+19°—9 mphsouthwest wind, 9 mph85%95%
    12:00+20°—11 mphsouthwest wind, 11 mph80%88%
    13:00+21°—11 mphsouthwest wind, 11 mph79%86%
    14:00+22°—11 mphsouthwest wind, 11 mph74%75%
    15:00+22°—11 mphwest wind, 11 mph70%84%
    16:00+22°—11 mphsouthwest wind, 11 mph71%98%
    17:00+21°—13 mphwest wind, 13 mph71%93%
    18:00+21°—11 mphwest wind, 11 mph69%97%
    19:00+21°—10 mphwest wind, 10 mph68%64%
    20:00+21°—7 mphsouthwest wind, 7 mph68%100%
    21:00+20°—8 mphsouthwest wind, 8 mph73%100%
    22:00+20°—11 mphsouthwest wind, 11 mph77%100%
    23:00+20°—10 mphsouthwest wind, 10 mph79%90%
    +22°+19°+15°
    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
    06:35
    Sunset
    20:12
    Day length
    13 h 37 min
    Sunshine hours
    6 h 30 min
    UV index
    2
    low
    Moon
    Waning gibbous
    Moonrise
    21:28
    Moonset
    13:32

    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

    +16% in the windowWednesday, September 2
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major04:08–06:08Moon overhead
    • Minor13:02–14:02Moonset
    • Major16:35–18:35Moon underfoot
    • Minor20:58–21:58Moonrise

    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

    • Glendoo Brook0.4 mi
    • Owendoher River0.9 mi
    • Dodder3 mi
    • Glencullen River3 mi
    • Glencree4 mi
    • Shankill River6 mi
    • Loughlinstown River6 mi
    • Camac7 mi
    • Brittas7 mi
    • Loughlinstown River, North7 mi

    Nearby water bodies

    • ReservoirBohernabreena Reservoir Upper2 mi
    • ReservoirBohernabreena Reservoir Lower3 mi
    • LakeLower Lough Bray5 mi
    • LakeUpper Lough Bray5 mi
    • LakeBrittas Lake6 mi
    • LakeCarp Lake6 mi
    • LakeTrout Lake6 mi