Caddisflies
Chironomids
- Ecology: High
- Chemical: Unknown
SEPA (Scotland) · UKSC100071
Rules at a glance
- Day tickets
Water temperature for Atlantic Salmon
Warm — slow16°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 clarity is right today, though river flow could be better.
Likely species
Caddisflies
Hatch timeline · todayPeak at 12:00
12:00(now) — Heather Fly
Stage: Terrestrials on topApproach: Dry flyActivity: 74%
Also:Daddy Long Legs45%Pond Olive22%
Peak emergence windowWeather boost8 food groups active
Peak activity at 12:00 — Heather Fly (Heather Fly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 4 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 4 as a supporter.
Start free trial14-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 · 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.
- Permission required from Grimersta Estate or relevant Lewis estate
- Check FishHebrides for current availability
- No rod licence needed in Scotland.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
Loch Langabhat, the largest freshwater loch on the Isle of Lewis, seen from Carabrock Terrain map
Water quality (WFD)
Why this score · for Atlantic Salmon
- Temperature8630% weight
- Flow6025% weight
- Clarity9520% weight
- Feeding Time9015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 11 February → 31 October
- Trout 15 March → 6 October
- Char varies_by_estate → varies_by_estate
Arctic char (Charr) — Langavat's relict char population is a conservation concern. Seasons and catch rules are set locally by the managing estate to protect the wild stock. If char are encountered as by-catch, practice immediate C&R. Check with the estate (Grimersta) or FishHebrides before any char targeting.
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.
Related guides
Booking & contacts
Loch Langavat (Lewis)
Water temperature for Atlantic Salmon
Warm — slow16°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 clarity is right today, though river flow could be better.
Likely species
Caddisflies
Hatch timeline · todayPeak at 12:00
12:00(now) — Heather Fly
Stage: Terrestrials on topApproach: Dry flyActivity: 74%
Also:Daddy Long Legs45%Pond Olive22%
Peak emergence windowWeather boost8 food groups active
Peak activity at 12:00 — Heather Fly (Heather Fly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 4 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 4 as a supporter.
Start free trial14-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 · 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.
- Permission required from Grimersta Estate or relevant Lewis estate
- Check FishHebrides for current availability
- No rod licence needed in Scotland.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
Loch Langabhat, the largest freshwater loch on the Isle of Lewis, seen from Carabrock Terrain map
Water quality (WFD)
- Ecology: High
- Chemical: Unknown
SEPA (Scotland) · UKSC100071
Why this score · for Atlantic Salmon
- Temperature8630% weight
- Flow6025% weight
- Clarity9520% weight
- Feeding Time9015% weight
- Pressure8510% weight
Directions
Seasons & zones
- Salmon 11 February → 31 October
- Trout 15 March → 6 October
- Char varies_by_estate → varies_by_estate
Arctic char (Charr) — Langavat's relict char population is a conservation concern. Seasons and catch rules are set locally by the managing estate to protect the wild stock. If char are encountered as by-catch, practice immediate C&R. Check with the estate (Grimersta) or FishHebrides before any char targeting.
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.
Related guides
Booking & contacts