Stillwater · Silurian Mudstone Shale · Wales / Vale of Clwyd, Denbighshire (Clwyd catchment)

Llyn Clywedog (Saron)

A calm forest-fringed reservoir under blue sky, with a weir structure crossing the water and pine-covered hills reflected on the surface.
Marginal · Trout
Marabou Damsel · 8-12
A patient day, if you fancy it
Good wave on — drift country. Slow going — pick your moments and do not force it.
44% confidence
limited data

Llyn Clywedog (Saron) is often best in spring through autumn.

What moved it
  • WindNW 17 km/hGentle breeze
Today's fly
Marabou Damsel
Marabou Damsel8-12
Retrieve, sub-surface
Conditions on the water
Live gauge
Wind
Gentle breeze
NW 17 km/h
N
NW
from the north-west
Wave20 cm ripple
Water temp—
Air temp21°C
CloudOvercast
Pressure1019 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
Late April–June; evening rises through summer
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. Keep a sedge-style dry or emerger on a short leader for the evening rise.
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. Keep a sedge-style dry or emerger on a short leader for the evening rise.

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

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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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Lake OliveHatch
1
2
2
2
2
2
1

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

Ranked for today
Trout fly box
Bays & launches · 1
Day ticket via Vale of Clwyd Angling ClubAccess varies
Small local club water near Saron/Denbigh — not to be confused with the much larger Llyn Clywedog reservoir near Llanidloes.
Visit official site ↗
What's coming
Plan ahead
5-day outlook
Condition match
59%
Cloud50%
Wind65%
Temp60%

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

Other water nearby · 5
Llyn Brenig
4.0 km
Rainbow trout · Brown trout
Alwen Reservoir
7.0 km
Brown trout · Rainbow trout
Llyn Garth
16 km
Brown trout · Rainbow trout
Llyn Cae Newydd
17 km
Brown trout · Rainbow trout
Tan-y-Mynydd Trout Fishery
18 km
Rainbow trout · Brown trout
Gallery · 2
  1. A calm forest-fringed reservoir under blue sky, with a weir structure crossing the water and pine-covered hills reflected on the surface.
    Clywedog Reservoir
  2. Terrain map of the venue
    Terrain map
Why this score
  • Daddy longlegs are in their seasonal window, boosting the chance of targeted feeding.
Related guides
Scotland Playbookloch & river fishingThermal Layers & Troutreading depth and temperatureEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts