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© 2026·AI-powered bite forecast
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Ireland / County Cavan / River Mountnugent

Bite forecast: River Mountnugent

  • length 38 km
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Best fishing days for the next week

  1. MondaySeptember 7weather-based forecast
    60/100high activity

    Cloudy: 12–17 °C

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

    Cloudy: 15–20 °C

  3. WednesdaySeptember 9weather-based forecast
    57/100medium activity

    Partly cloudy: 11–17 °C

Nearby towns

  • Ballyjamesduff0.1 mi
  • Virginia5 mi
  • Bailieborough10 mi

River Mountnugent (County Cavan) — a spot well known among anglers. About 38 km long. Close by — Ballyjamesduff, Virginia and Bailieborough. 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

7–Sep 13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
European eelPikeAtlantic salmonPerchBreamBrown troutRainbow troutCarpRoachBleakWhite breamRuddTench

Atlantic salmon

7/10 · Good

Hourly activity

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

The bite is strong — fish are active. Pressure is dropping — this usually boosts the bite.

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

The water's turning murky — go with bright, noisy lures: salmon spoon or salmon fly.

Gear

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

Summary

Worth going — it's a productive day.

How this forecast is calculated

Why this forecast

The computed water temperature is around 14 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.

Computed water temperature by month; the green band is the 4–14 °C comfort rangecomfort 4–14 °C14 °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 flat: it moves no more than 0 hPa over the day, so the weather isn't shifting today's bite.

Pressure through the day, 0 hPa change
00:00 · 100923:00 · 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

8 SepTuesday, September 8
+14°

Cloudy · feels like +9°

Low / high
+10°…+14°
Precipitation
0.0 mm
Wind
19 mph W
Cloud cover
80%
Humidity
73%
Pressure
1008 hPa
00:00+10°—14 mphsouthwest wind, 14 mph82%8%
01:00+10°—14 mphsouthwest wind, 14 mph84%8%
02:00+10°—15 mphsouthwest wind, 15 mph84%10%
03:00+10°—15 mphsouthwest wind, 15 mph84%14%
04:00+10°—15 mphsouthwest wind, 15 mph84%16%
05:00+11°—15 mphsouthwest wind, 15 mph85%13%
06:00+11°—14 mphsouthwest wind, 14 mph86%10%
07:00+11°—14 mphsouthwest wind, 14 mph85%13%
08:00+12°—15 mphsouthwest wind, 15 mph82%30%
09:00+13°—17 mphwest wind, 17 mph77%55%
10:00+13°—18 mphwest wind, 18 mph74%73%
11:00+13°—19 mphwest wind, 19 mph73%80%
12:00+14°—19 mphwest wind, 19 mph73%80%
13:00+14°—19 mphwest wind, 19 mph74%78%
14:00+14°0.2 mm19 mphwest wind, 19 mph75%74%
15:00+14°0.2 mm19 mphwest wind, 19 mph76%68%
16:00+14°0.2 mm19 mphwest wind, 19 mph77%59%
17:00+14°0.1 mm19 mphwest wind, 19 mph79%45%
18:00+13°0.1 mm18 mphwest wind, 18 mph80%28%
19:00+13°0.1 mm17 mphwest wind, 17 mph82%16%
20:00+12°—16 mphwest wind, 16 mph83%15%
21:00+12°—15 mphwest wind, 15 mph84%19%
22:00+12°—14 mphwest wind, 14 mph85%22%
23:00+12°—13 mphwest wind, 13 mph85%20%
+14°+12°+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
06:50
Sunset
20:03
Day length
13 h 13 min
Sunshine hours
9 h 4 min
UV index
3
moderate
Moon
Waning crescent
Moonrise
02:45
Moonset
19:10

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

+15% in the windowTuesday, September 8
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Minor02:15–03:15Moonrise
  • Major10:10–12:10Moon overhead
  • Minor18:40–19:40Moonset
  • Major22:37–00:00Moon 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?

Nearby rivers

  • Upper Inny River2 mi
  • Mountnugent Tributary North5 mi
  • Erne6 mi

Nearby water bodies

  • LakeLough Sheelin2 mi
  • LakeOmard Lough4 mi
  • LakeKill Lough5 mi
  • LakeBracklagh Lough5 mi
  • LakeCorglass Lough5 mi
  • LakeGraddum Lough5 mi
  • LakeLough Naneagh6 mi
  • LakeLough Bane6 mi
  • LakeBleach Lough6 mi
  • LakeLough Naneagh6 mi