Stillwater · Limestone · North Wales / Anglesey

Llyn Coron

Llyn Coron on a frosty morning, near Llangadwaladr, Anglesey
Fair · Rainbow
Diawl Bach · 12-14
Fairlive now
Buzzer expected on Llyn Coron
Good wave on — drift country. A useful wave. Work the productive shore.
61% confidence
What moved it
  • WindS 18 km/hGentle breeze
Today's fly
Diawl Bach
Diawl Bach12-14
Washing-line, sub-surface
Conditions on the water
Live gauge
Wind
Gentle breeze
S 18 km/h
N
S
from the south
Wave40 cm chop
Water temp—
Air temp16°C
CloudOvercast
Pressure1014 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. The ripple is helpful — fish should move onto the feed and a slow-drifted team or single wet will cover water well.
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Set up a broadside drift and cover the water systematically. 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

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 5 with Pro.

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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
71%
Cloud50%
Wind65%
Temp100%

A good match for Llyn Coron — most conditions are close to what it fishes best in.

Other water nearby · 5
Llyn Cefni Reservoir
10 km
Brown trout · Rainbow trout
Llyn Alaw
17 km
Brown trout · Rainbow trout
Llyn Padarn
22 km
Brown trout · Arctic char
Llyn Nantlle
22 km
Brown trout · Sea trout
Llyn Cwm Silyn
23 km
Brown trout · Arctic char
Gallery · 2
  1. Llyn Coron on a frosty morning, near Llangadwaladr, Anglesey
    Llyn Coron, a natural lowland lake on Anglesey
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Poor
  • Chemical: Unknown
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
  • Temperature (cool) is in the sweet spot for summer fishing.
  • Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 15 March → 5 October
Related guides
Scotland Playbookloch & river fishingSmall Stillwater Playbookstillwater tacticsThermal Layers & Troutreading depth and temperature
Casting instructors near here
Booking & contacts
Clubs & associations