Stillwater · Peat · Outer Hebrides / Lewis

Loch Langavat (Lewis)

Loch Langavat (Lewis) terrain map
Terrain map

Lewis's largest freshwater loch — a remote, peat-stained water stretching six miles through the interior moorland.

Species

Marginal — persistence required

Low and clear — careful approach country. Hard going on bright water. Favour cloud and shadow.

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
  • Temperature1330% weight
  • Flow4525% weight
  • Clarity9520% weight
  • Feeding Time1015% weight
  • Pressure8510% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
5.5°C
Estimated
Clarity
Clear
Air temp
6°C
Wind
S 6 km/h
Calm
Pressure
1000 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
2.8 mm
Light 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).
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
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
2
1
Large Dark OliveHatch
1
2
2
1
March BrownHatch
1
2
1
Iron BlueHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1

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

Permits & access
Permit required — see local rules.
  • Permission required from Grimersta Estate or relevant Lewis estate
  • Check FishHebrides for current availability
  • No rod licence needed in Scotland.
Directions
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About this water

Lewis's largest freshwater loch — a remote, peat-stained water stretching six miles through the interior moorland. Langavat holds wild brown trout, salmon, sea trout, and a relict population of Arctic charr. The trout average half a pound but fish to two pounds are taken regularly on the drift. Salmon and sea trout run the short outflow system from late June. Access is by foot across open moorland — a genuine wilderness experience. The loch responds dramatically to wind; a good wave on a warm overcast day can produce explosive sport with trout rising freely to bushy wet flies. Calm days are harder and demand patience. The isolation is both the challenge and the reward.

  • Loch
  • Peat
Seasons & zones
  • Salmon11 February → 31 October
  • Trout15 March → 6 October
  • Charvaries_by_estate → varies_by_estate

Sea trout: Variable seasonal (2026) — Hebridean sea trout stocks have collapsed under sustained sea-lice pressure from salmon farms on the west coast. Scottish sea trout rod catch was reported at 'lowest on record' in 2025. Langavat system retains a wild sea trout fishery but operates in a severely diminished baseline. Condition-led; catch-and-release expected.

Other water nearby · 5
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