Stillwater · Limestone · North Wales / Anglesey

Llyn Coron

Llyn Coron venue image
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Llyn Coron is Anglesey's principal stillwater — a shallow, fertile limestone loch that sits quiet in the island's pastoral landscape.

Fair · Rainbow
Diawl Bach · 12-14
Fairlive now
Buzzer on Llyn Coron
Useful ripple, fishable wave. Worth a session if the wind holds.
55% confidence
What moved it
  • WindSW 26 km/hModerate breeze
Today’s fly
Diawl Bach
Diawl Bach12-14
Washing-line, sub-surface
Conditions on the water
Live gauge
Wind
Moderate breeze
SW 26 km/h
N
SW
from the south-west
Wave60 cm wave
Water temp
Air temp17°C
CloudBroken
Pressure1019 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for rainbow
When
The buzzer is on. Damsel Nymph may also come into play as the day warms.
Where
Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

Watch for Murrough towards evening — this could be the best window of the day.

Boat — at anchor

Windy conditions suit anchoring in productive areas rather than open-water drifting.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
1
Daphnia SwarmHatch
2
3
3
3
2
Daddy Long LegsHatch
2
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Silverhorns & LonghornsHatch
1
2
2
2
1

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

Ranked for today
Rainbow fly box
What's coming
Plan ahead
5-day outlook
Condition match
51%
Cloud70%
Wind30%
Temp60%

A reasonable day here, though wind isn't quite in the sweet spot.

Other water nearby · 5
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Llyn Coron is Anglesey's principal stillwater — a shallow, fertile limestone loch that sits quiet in the island's pastoral landscape. Managed as a dedicated fly-fishing venue, it produces reliable brown and rainbow trout on buzzers and nymphs. The shallow nature means fish are often visible, so presentation matters. Daphnia blooms in summer can produce spectacular buzzer hatches. Bank fishing only; the compact scale rewards methodical coverage over distant casting. A water that says 'come spend time here' rather than 'come kill fish' — exactly right for the thoughtful angler.

  • Loch
  • Limestone
Water quality (WFD)
  • EcologyPoor
  • ChemicalUnknown
What this classification means

NRW WFD Cycle 3 (lake) — Llyn Coron: Poor ecological status. Re-tagged 2026-06-18 from the Ddrydwy river reach to the lake's own waterbody (was recorded Moderate). Source: NRW DataMapWales WFD Cycle 3 classification layer.

NRW (Wales) · GB31033337

Why this score
  • Wind conditions (windy) are not ideal for this water.
  • Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout15 March → 5 October
Related guides
Booking & contacts