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© 2026·AI-powered bite forecast
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United Kingdom / County Armagh / Tullyvallan River

Bite forecast: Tullyvallan River

  • length 5 km
Loading map…

Best fishing days for the next week

  1. WednesdaySeptember 9weather-based forecast
    66/100high activity

    Cloudy: 7–13 °C

  2. MondaySeptember 7weather-based forecast
    64/100high activity

    Cloudy: 11–13 °C

  3. SundaySeptember 6weather-based forecast
    60/100high activity

    Drizzle: 14–19 °C

Tullyvallan River (County Armagh) — one of the area's fishing spots. About 5 km long. Nearby towns: Crossmaglen, Keady and Armagh. This page shows an hourly bite forecast for today and the week ahead; the algorithm factors in the weather, atmospheric pressure, and the moon phase.

Nearby towns

  • Crossmaglen5 mi
  • Keady7 mi
  • Armagh12 mi

Nearby rivers

  • Cullyhanna River1 mi
  • Fane River3 mi
  • Dorsy River3 mi
  • Ballintemple River4 mi
  • Creggan River6 mi
  • Forkhill River6 mi

Nearby water bodies

  • LakeLisleitrim Lough3 mi
  • LakeCullyhanna Lough3 mi
  • LakeSheetrim Lough3 mi
  • LakeKiltybane Lough3 mi
  • LakeCashel Lough Lower4 mi
  • LakeAnnaghmore Lough4 mi
  • LakeDrumlougher Lough4 mi
  • LakeLough Patrick4 mi
  • LakeCashel Lake Upper4 mi
  • LakeLough Alina4 mi
Loading map…

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?
Wels catfishEuropean eelWhitefishBarbelBreamCarpDaceGraylingPikeRuffeZanderAtlantic salmonBrown troutIdePerchRainbow troutChubCrucian carpWhite breamBleakRoachRuddTench

Atlantic salmon

6/10 · Fair

Hourly activity

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

The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.

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. 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 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 · 101023:00 · 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°

Cloudy · feels like +15°

Low / high
+12°…+17°
Precipitation
0.0 mm
Wind
12 mph SW
Cloud cover
100%
Humidity
77%
Pressure
1011 hPa
00:00+16°—15 mphwest wind, 15 mph92%100%
01:00+15°0.1 mm14 mphwest wind, 14 mph94%100%
02:00+14°—11 mphwest wind, 11 mph92%75%
03:00+14°—11 mphwest wind, 11 mph92%100%
04:00+14°—13 mphwest wind, 13 mph94%64%
05:00+13°—12 mphwest wind, 12 mph95%66%
06:00+13°—12 mphwest wind, 12 mph94%25%
07:00+13°—11 mphsouthwest wind, 11 mph97%52%
08:00+13°—11 mphsouthwest wind, 11 mph94%51%
09:00+14°—12 mphsouthwest wind, 12 mph87%42%
10:00+15°—12 mphsouthwest wind, 12 mph81%91%
11:00+16°—13 mphsouthwest wind, 13 mph81%71%
12:00+17°—12 mphsouthwest wind, 12 mph77%100%
13:00+15°0.1 mm12 mphsouthwest wind, 12 mph91%100%
14:00+16°0.4 mm15 mphsouthwest wind, 15 mph91%100%
15:00+15°0.8 mm15 mphsouthwest wind, 15 mph91%100%
16:00+15°0.8 mm15 mphsouthwest wind, 15 mph91%100%
17:00+14°0.1 mm15 mphsouthwest wind, 15 mph88%100%
18:00+14°—16 mphsouthwest wind, 16 mph86%100%
19:00+13°0.2 mm16 mphsouthwest wind, 16 mph89%100%
20:00+13°0.4 mm15 mphsouthwest wind, 15 mph93%100%
21:00+12°0.3 mm14 mphsouthwest wind, 14 mph93%100%
22:00+12°—13 mphsouthwest wind, 13 mph92%100%
23:00+13°—12 mphsouthwest wind, 12 mph95%100%
+17°+14°+12°
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
06:37
Sunset
20:12
Day length
13 h 35 min
Sunshine hours
3 h 33 min
UV index
2
low
Moon
Last quarter
Moonrise
21:55
Moonset
15:12

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 windowThursday, September 3
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Major05:08–07:08Moon overhead
  • Minor14:42–15:42Moonset
  • Major17:37–19:37Moon underfoot
  • Minor21:25–22:25Moonrise

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?