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Where to fish

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

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Ireland / County Meath / River Mattock

Bite forecast: River Mattock

  • length 16 km
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Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    62/100high activity

    Partly cloudy: 8–14 °C

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River Mattock (County Meath) — a popular fishing spot. About 16 km long. Nearest town — Navan. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.

MondaySeptember 7weather-based forecast
57/100medium activity

Drizzle: 13–15 °C

  • SaturdaySeptember 5weather-based forecast
    54/100medium activity

    Cloudy: 11–16 °C

  • Nearby towns

    • Navan10 mi

    Bite calendar

    Thursday, September 3

    Aug 31 – Sep 6
    Mon
    Tue
    Wed
    Thu
    Fri
    Sat
    Sun
    Bite activity:highmediumlowslow
    Based on:weatherseasonal
    What is a bite calendar?
    European eelPikeAtlantic salmonBreamCarpPerchRainbow 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 — 06:00–08:00 (dawn bite) and 20:00–21:00 (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

    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 15 °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 °C15 °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 2 hPa over the day — fish are usually more active ahead of a weather change.

    Pressure through the day, 2 hPa change
    00:00 · 101223:00 · 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 active season for Atlantic salmon here.

    JFMAMJJASOND

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

    3 SepThursday, September 3
    +17°

    Drizzle · feels like +16°

    Low / high
    +13°…+19°
    Precipitation
    0.3 mm
    Wind
    10 mph SSW
    Cloud cover
    100%
    Humidity
    93%
    Pressure
    1013 hPa
    00:00+16°—12 mphsouthwest wind, 12 mph89%100%
    01:00+17°—12 mphsouthwest wind, 12 mph88%99%
    02:00+16°—10 mphsouthwest wind, 10 mph89%100%
    03:00+16°—13 mphsouthwest wind, 13 mph86%93%
    04:00+16°—11 mphsouthwest wind, 11 mph89%96%
    05:00+15°—9 mphsouthwest wind, 9 mph91%79%
    06:00+15°—9 mphsouthwest wind, 9 mph93%100%
    07:00+15°—7 mphsouthwest wind, 7 mph92%100%
    08:00+15°1.5 mm9 mphsouthwest wind, 9 mph93%93%
    09:00+16°—10 mphsouthwest wind, 10 mph91%100%
    10:00+17°—12 mphsouthwest wind, 12 mph83%100%
    11:00+17°—11 mphsouthwest wind, 11 mph83%100%
    12:00+17°0.3 mm10 mphsouthwest wind, 10 mph93%100%
    13:00+19°—14 mphsouthwest wind, 14 mph83%100%
    14:00+17°1.4 mm13 mphsouthwest wind, 13 mph93%100%
    15:00+17°1.3 mm12 mphwest wind, 12 mph91%100%
    16:00+17°1.1 mm11 mphwest wind, 11 mph91%100%
    17:00+16°1.1 mm13 mphsouthwest wind, 13 mph93%100%
    18:00+15°0.5 mm13 mphsouthwest wind, 13 mph86%100%
    19:00+15°0.1 mm11 mphsouthwest wind, 11 mph88%100%
    20:00+15°0.3 mm6 mphsouthwest wind, 6 mph95%100%
    21:00+13°2.3 mm6 mphsouthwest wind, 6 mph97%100%
    22:00+14°0.2 mm9 mphsouthwest wind, 9 mph97%100%
    23:00+14°—8 mphsouthwest wind, 8 mph95%100%
    +19°+16°+13°
    Weather throughout the day
    0:006:0012:0018:0023:00

    Sun and moon

    Thursday, September 3
    The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
    DaylightMoon above the horizon
    Sunrise
    06:39
    Sunset
    20:12
    Day length
    13 h 33 min
    Sunshine hours
    1 h 27 min
    UV index
    1
    low
    Moon
    Last quarter
    Moonrise
    21:50
    Moonset
    15:08

    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

    +12% in the windowThursday, September 3
    Feeding windows on the day scale, local time0:0012:0024:00
    Major periodsMinor periods
    • Major05:04–07:04Moon overhead
    • Minor14:38–15:38Moonset
    • Major17:33–19:33Moon underfoot
    • Minor21:20–22:20Moonrise

    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

    • Mattock1 mi
    • Boyne4 mi
    • Nanny5 mi
    • Hurley7 mi
    • Keeran River7 mi
    • Hurley River8 mi

    Nearby water bodies

    • ReservoirBarnattin Reservoir3 mi
    • PondRathescar Lake8 mi