Spate · Granite · North West / Donegal

Lackagh / Lough Beagh

Lough Beagh venue image
Google Places

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.

Fair · Atlantic Salmon
Cascade · 10-14
Fairlive now
Decent — worth a look
River dropping into shape after a lift. Cover the heads and tails before the river drops away.
75% confidence
What moved it
  • LevelProxyvia River Finn
  • Water temp15.8°C
  • ClarityVery colouredClearing
Today’s fly
Cascade
Cascade10-14
Regional salmon default — river-specific evidence is thin.
Conditions on the water
Proxy gauge
Level
Falling
Proxy
via River Finn
Water temp15.8°C
ClarityVery coloured
Weather17°C
WindNW 17 km/h
Pressure1019 hPa
Rain · recent24.8 mm
Rain · ahead15.4 mm

No gauge on this water — conditions are inferred from River Finn. The trend transfers, the absolute level does not.

Water temperature for atlantic salmon
Warm — slow
16°C est.ideal 1014°C
0°14°28°
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
Fair conditions based on river hydrology and migration patterns.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 6 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
1
Sea trout runRun
1
2
2
2
1
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Lake OliveHatch
1
2
2
2
2
2
1

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

Ranked for today
Atlantic Salmon fly box
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.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 1
  1. Terrain map of the venue
    Terrain map
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. For 2026 this is a catch-and-release fishery under the Wild Salmon & Sea Trout Tagging Scheme — all salmon and grilse must be returned.

  • Lough system
  • Granite
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown
What this classification means

WFD ecological status Moderate → Good corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody IENW_38C010300. Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

EPA (Ireland) · IENW_38C010300

The full read · show the working · for atlantic salmon · confidence 75%
How the river scores — hydrology factors
Water heightMedium Ideal0.0
Recent riseNone0.0
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate0.0
Time in seasonOpening Period0.0
ClarityClearing0.0
Hydrology base0.0
Legal gate: Unknown Check Local Rules
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via River Finnproxy
Directions
Seasons & zones
  • Salmon1 June → 30 SeptemberC&R
  • Sea trout12 May → 30 September
Related guides
Booking & contacts