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Where to fish

  • Forecast
  • Catches

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

Bite forecast: River Liffey

  • length 25 km
  • Flows into Irish Sea
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Best fishing days for the next week

  1. FridaySeptember 11weather-based forecast
    61/100high activity

    Cloudy: 10–16 °C

  2. MondaySeptember 7weather-based forecast
    58/100medium activity

    Cloudy: 13–17 °C

  3. SundaySeptember 6weather-based forecast
    57/100medium activity

    Cloudy: 15–21 °C

Nearby towns

  • Lucan0.1 mi
  • Dublin0.2 mi
  • Blanchardstown1 mi

River Liffey (County Dublin) — a popular fishing spot. About 25 km long. Flows into Irish Sea. Close by — Lucan, Dublin and Blanchardstown. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.

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Bite calendar

Saturday, September 5

Aug 31 – Sep 6
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
European eelPikeAtlantic salmonBreamPerchBrown troutCarpRainbow troutRoachBleakRuddTenchWhite bream

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. Pressure is rising — activity tends to be more subdued.

Peak bite hours

Best time — 06:00–08:00 (dawn bite) and 20:00–22:00 (dusk bite).

Tactics

Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.

Lures

In clear water, natural colors work best: salmon spoon or salmon fly.

Gear

No special gear needed — seasonal clothing will do.

Summary

An average day — best chances during peak windows.

How this forecast is calculated

Why this forecast

The computed water temperature is around 16 °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 °C16 °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 rising 3 hPa over the day — the bite usually settles down after a rise.

Pressure through the day, 3 hPa change
00:00 · 101923:00 · 1022 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

5 SepSaturday, September 5
+17°

Cloudy · feels like +15°

Low / high
+13°…+19°
Precipitation
0.0 mm
Wind
7 mph WSW
Cloud cover
83%
Humidity
59%
Pressure
1024 hPa
00:00+14°—10 mphwest wind, 10 mph83%54%
01:00+14°—10 mphwest wind, 10 mph82%23%
02:00+13°—9 mphwest wind, 9 mph81%1%
03:00+13°—9 mphwest wind, 9 mph85%23%
04:00+13°—9 mphwest wind, 9 mph84%54%
05:00+13°—9 mphwest wind, 9 mph84%20%
06:00+13°—9 mphwest wind, 9 mph86%64%
07:00+13°—7 mphwest wind, 7 mph87%0%
08:00+13°—7 mphsouthwest wind, 7 mph85%0%
09:00+14°—8 mphsouthwest wind, 8 mph80%20%
10:00+15°—8 mphwest wind, 8 mph70%30%
11:00+16°—6 mphsouthwest wind, 6 mph65%95%
12:00+17°—7 mphsouthwest wind, 7 mph59%83%
13:00+17°—6 mphsouthwest wind, 6 mph56%96%
14:00+18°—7 mphsouthwest wind, 7 mph55%96%
15:00+18°—7 mphsouthwest wind, 7 mph54%94%
16:00+19°—7 mphsouthwest wind, 7 mph52%86%
17:00+19°—5 mphsouthwest wind, 5 mph48%72%
18:00+19°—6 mphsouthwest wind, 6 mph47%33%
19:00+19°—10 mphsouthwest wind, 10 mph53%98%
20:00+18°—9 mphsouthwest wind, 9 mph55%100%
21:00+18°—6 mphsouth wind, 6 mph58%100%
22:00+17°—7 mphsouth wind, 7 mph66%100%
23:00+17°—8 mphsoutheast wind, 8 mph68%100%
+19°+16°+13°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Saturday, September 5
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:40
Sunset
20:05
Day length
13 h 25 min
Sunshine hours
8 h 5 min
UV index
2
low
Moon
Waning crescent
Moonrise
23:51
Moonset
17:27

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 windowSaturday, September 5
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major07:06–09:06Moon overhead
  • Minor16:57–17:57Moonset
  • Major19:37–21:37Moon underfoot
  • Minor23:21–00:00Moonrise

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

  • Tolka2 mi
  • Griffeen3 mi
  • Pinkeen River4 mi
  • Rye Water6 mi
  • Dodder6 mi
  • Camac6 mi
  • River Rye7 mi
  • Santry River8 mi
  • Glendoo Brook8 mi
  • Naniken River8 mi

Nearby water bodies

  • LakeTrout Lake4 mi
  • LakeCarp Lake4 mi
  • LakeInner Dock5 mi
  • ReservoirBohernabreena Reservoir Lower8 mi