Stillwater · Peat · Outer Hebrides / Lewis, GB-SCT

Loch Roag System

View of Loch Roag near Hacklete on Great Bernera in the Outer Hebrides, with calm sea-loch water and distant hills.
Prime · Atlantic Salmon
Stoat's Tail · 8-12 double
Primelive now
Prime conditions — go now
Low and clear — careful approach country. Cover the water properly, fish each lie once.
85% confidence
What moved it
  • LevelLight rain recentlyNo gauge reading
  • Water temp12.9°C
  • ClarityClear
Today's fly
Stoat's Tail
Stoat's Tail8-12 double
Regional salmon default — river-specific evidence is thin.
Conditions on the water
Estimate
Level
Light rain recently
No gauge reading
Water temp12.9°C
ClarityClear
Weather12°C
WindSE 28 km/h
Pressure1014 hPa
Rain · recent7.4 mm
Rain · ahead21.5 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Atlantic Salmon
Ideal
13°C est.ideal 10–16°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
Excellent — water temperature is right today, though river flow could be better.
Likely species
Mayflies
Caddisflies
Chironomids
Damselflies & dragonflies
Hatch timeline · todayPeak at 06:00

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 as a supporter.

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Evidence
Survey-backed · regionalHigh confidence

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

Through the year
0–3 scale · September 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
Heather FlyHatch
2
2
Daddy Long LegsHatch
2
3
2
Claret DunHatch
2
3
2
Murrough (Great Red Sedge)Hatch
2
3
2

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

Ranked for today
Fly box · Atlantic Salmon
Permits & access
Permit required — see local rules.
  • Multiple estates and clubs control different sections
  • FishHebrides is the best starting point for booking
  • Tide tables essential for sea pool timing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Grimersta River & Loch System
5.0 km
Brown trout · Salmon · Sea trout
Loch Morsgail
14 km
Brown trout · Salmon · Sea trout
Loch Langavat (Lewis)
20 km
82
Brown trout · Char · Salmon
Gallery · 2
  1. View of Loch Roag near Hacklete on Great Bernera in the Outer Hebrides, with calm sea-loch water and distant hills.
    Loch Roag near Hacklete, Great Bernera, in the Outer Hebrides.
  2. Terrain map of the venue
    Terrain map
Why this score · for Atlantic Salmon
  • Temperature10030% weight
  • Flow6025% weight
  • Clarity9520% weight
  • Feeding Time9015% weight
  • Pressure8510% weight
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Salmon 11 February → 31 October
  • Trout 15 March → 6 October

Sea trout: Variable seasonal (2026) — Outer Hebrides sea trout system. Sea-lice pressure from Hebridean salmon farms has affected stocks across the entire west coast. 2025 Scottish sea trout rod catches at record lows. Condition-led; local knowledge essential.

Related guides
Scotland Playbookloch & river fishingThermal Layers & Troutreading depth and temperatureAtlantic Salmonsalmon tactics
Booking & contacts