Stillwater · Silurian Mudstone Shale · Wales / Cambrian Mountains (Rheidol uplands)

Llyn-yr-Oerfa

Llyn-yr-Oerfa, a remote upland lake on the Pumlumon moorland plateau in mid Wales.

The Cold Place, which tells you most of what you need to know.

Fair · Trout
Diawl Bach · 12-14
A respectable few hours, if you choose your moments
Good wave on — drift country. A useful wave. Work the productive shore.
48% confidence
limited data
What moved it
  • WindNW 12 km/hGentle breeze
Today's fly
Diawl Bach
Diawl Bach12-14
Washing-line, sub-surface
Conditions on the water
Live gauge
Wind
Gentle breeze
NW 12 km/h
N
NW
from the north-west
Wave20 cm ripple
Water temp
Air temp19°C
CloudBroken
Pressure1021 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.
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.

Boat — drift

A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.

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 · July 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
Gammarus Scud (Olive)
Gammarus Scud (Olive)
10-14 · Gammarus Scud
Washing-line, sub-surface
Bays & launches · 1
Day ticket via Fishing PassportAccess varies
'Cold place' — trickle-stocked brown trout fishery with specimens to 5 lb+.
What's coming
Plan ahead
5-day outlook
Condition match
74%
Cloud100%
Wind65%
Temp60%

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

Other water nearby · 5
Gallery · 2
  1. Llyn-yr-Oerfa, a remote upland lake on the Pumlumon moorland plateau in mid Wales.
    Llyn-yr-Oerfa, an upland lake on the Pumlumon plateau near Ystumtuen, mid Wales.
  2. Terrain map of the venue
    Terrain map
About this water

The Cold Place, which tells you most of what you need to know. Four hectares of upland water with easy parking and firm footing on one bank — and trickle-stocked brown trout that occasionally push past five pounds. The setting earns the name; the fishing earns the trip.

  • Lake
  • Silurian mudstone shale
Why this score
  • Cloud cover (cloud) suits the fishery well.
  • Damsel Nymph is in its seasonal window, boosting the chance of targeted feeding.
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