Spate · Granite · North West / Donegal

Lackagh / Lough Beagh

Lough Beagh venue image
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A classic Donegal sea-trout lough-and-river system in the Glenveagh National Park — wild, remote, and still explicitly managed as a sea-trout fishery.

Species

Slow going — better windows ahead

Low and clear — careful approach country. Fish on a shallow rise are spooked — choose your hour.

50% confidence in this read
Water temperature for atlantic salmon
Cool — slow
6°C est.ideal 10–14°C
0°14°28°
Why this score · for atlantic salmon
  • Temperature1430% weight
  • Flow4525% weight
  • Clarity9520% weight
  • Feeding Time1015% weight
  • Pressure8510% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
5.6°C
Estimated
Clarity
Clear
Air temp
6°C
Wind
W 19 km/h
Gentle breeze
Pressure
1005 hPa
Rain · 48h
0.2 mm
No meaningful rain
Rain · ahead
15.4 mm
Moderate rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

How to fish it · for atlantic salmon
When
All day — lough fishing is best in a good wave. Early morning and evening can produce in calm conditions.
Where
Work the drift lanes from the upwind shore across the productive zones. Cover bay edges, underwater reefs, and any areas where the bottom shoals.
Method
Fish a sensible line-and-fly combination for the height and pace of water.
Kit
10 ft #7/8 single-hander, floating line, 10–12 lb fluoro leader. Boat seat and waterproofs for the drift.
Why this works
Poor conditions. Clarity is favourable (95), Feeding time is weakest (10). Outside the typical run window — score reduced.
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
1
Sea trout runRun
1
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Hawthorn FlyHatch
1
1
Flying AntsHatch
1
1

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
  • Glenveagh National Park area, Co
  • Access arrangements — check locally
  • State rod licence required.
Directions
Apple MapsGoogle Maps
About this water

A classic Donegal sea-trout lough-and-river system in the Glenveagh National Park — wild, remote, and still explicitly managed as a sea-trout fishery. The 2025 permit wording separately regulates sea trout over and under 40 cm, confirming they remain central to fishery management. Lough Beagh's own season opens mid-July (15 July to 30 September), giving it a notably late, specialist-lough character; the Lackagh River opens earlier from 12 May. Fish the lough by boat during runs with wet fly teams; fish the brief river sections on the drop after a spate. Historic prestige remains stronger than the current public catch narrative — treat as an iconic specialist destination rather than a modern numbers machine.

  • Lough system
  • Granite
Seasons & zones
  • Salmon12 May → 30 September
  • Sea trout12 May → 30 September
Other water nearby · 5