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Forecast
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© 2026·AI-powered bite forecast
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Ireland / County Mayo / Fir Lough

Bite forecast: Fir Lough

  • 1 ha
Loading map…

Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    65/100high activity

    Clear: 10–14 °C

  2. WednesdaySeptember 2weather-based forecast
    61/100high activity

    Drizzle: 15–17 °C

  3. SaturdaySeptember 5weather-based forecast
    61/100high activity

    Drizzle: 11–17 °C

Nearby towns

  • Ballina8 mi
  • Foxford11 mi
  • Swinford12 mi

Fir Lough (County Mayo) — one of the area's fishing spots. About 1 ha in area. Close by — Ballina, Foxford and Swinford. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days.

Loading map…

Bite calendar

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

Bleak

4/10 · Weak

Hourly activity

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

The bite is moderate — fish feed in short bursts. Pressure is dropping — this usually boosts the bite.

Peak bite hours

Best time — 11:00–17:00 (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

An average day — best chances during peak windows.

How this forecast is calculated

Why this forecast

The computed water temperature is around 13 °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 °C13 °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 dropping 10 hPa over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 10 hPa change
00:00 · 101823:00 · 1007 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
+14°

Clear · feels like +12°

Low / high
+10°…+14°
Precipitation
0.8 mm
Wind
7 mph SSE
Cloud cover
59%
Humidity
78%
Pressure
1009 hPa
00:00+13°—12 mphwest wind, 12 mph67%100%
01:00+13°—11 mphwest wind, 11 mph68%100%
02:00+13°—10 mphwest wind, 10 mph70%88%
03:00+12°—9 mphwest wind, 9 mph73%70%
04:00+11°—8 mphwest wind, 8 mph76%49%
05:00+11°—7 mphwest wind, 7 mph79%28%
06:00+10°—6 mphwest wind, 6 mph81%11%
07:00+10°—5 mphwest wind, 5 mph81%0%
08:00+11°—5 mphwest wind, 5 mph78%0%
09:00+12°—5 mphwest wind, 5 mph73%0%
10:00+13°—5 mphwest wind, 5 mph67%5%
11:00+14°0.4 mm6 mphsouthwest wind, 6 mph71%34%
12:00+14°0.8 mm7 mphsouth wind, 7 mph78%59%
13:00+14°1.1 mm10 mpheast wind, 10 mph87%81%
14:00+13°1.3 mm12 mphnorth wind, 12 mph99%100%
15:00+12°1.3 mm13 mphnorth wind, 13 mph99%100%
16:00+11°1.3 mm13 mphnorth wind, 13 mph99%100%
17:00+11°1.3 mm13 mphnorth wind, 13 mph100%100%
18:00+10°1.3 mm14 mphnorth wind, 14 mph99%100%
19:00+10°1.3 mm14 mphnorth wind, 14 mph98%100%
20:00+10°0.2 mm15 mphnorth wind, 15 mph95%95%
21:00+10°0.2 mm15 mphnorth wind, 15 mph91%88%
22:00+10°0.2 mm15 mphnorth wind, 15 mph86%80%
23:00+11°0.2 mm15 mphnorth wind, 15 mph82%72%
+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
06:58
Sunset
20:11
Day length
13 h 13 min
Sunshine hours
0 min
UV index
4
moderate
Moon
Waning crescent
Moonrise
02:53
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

+11% in the windowTuesday, September 8
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Minor02:23–03:23Moonrise
  • Major10:19–12:19Moon overhead
  • Minor18:48–19:48Moonset
  • Major22:46–00:00Moon 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

  • Glenree River0.5 mi
  • Gowlan River1 mi
  • Owencam River3 mi
  • Owenraher River4 mi
  • Brusna4 mi
  • Easky4 mi

Nearby water bodies

  • LakeLough Weeloge2 mi
  • LakeLough Ahusey2 mi
  • LakeLough Alone2 mi
  • LakeFossea Lough3 mi
  • LakeLough Talt3 mi
  • LakeLough Hoe3 mi
  • LakeLough Nalackagh4 mi
  • LakeLoughalacka4 mi