Stillwater · Ordovician Volcanics · Wales / Snowdonia (Blaenau Ffestiniog uplands), GB-WLS

Llyn Morwynion

Bright blue upland lake (Llyn Morwynion) behind a dry stone wall, with green hills under a clear sky, Snowdonia.

Morwynion carries the same premium status as Gamallt — strong enough a fishery that the club caps it at three fish a day — and adds something none of the wild-only llyns can offer: a stocking of rainbow trout alongside the resident browns.

Fair · Trout
Minkie · 6-10
Fairlive now
Good drifting conditions on Llyn Morwynion
Good wave on — drift country. A useful wave. Work the productive shore.
55% confidence

Llyn Morwynion is often best in spring through autumn.

What moved it
  • WindSW 12 km/hGentle breeze · Gusts to 26 km/h
Today's fly
Minkie
Minkie6-10
Retrieve, sub-surface
Conditions on the water
Estimate
Wind
Gentle breeze · Gusts to 26 km/h
SW 12 km/h
N
SW
from the south-west
Wave20 cm ripple
Water temp9.6°C
Air temp13°C
CloudOvercast
Pressure1019 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Head to
Wind driftNE wind
South-western end

A northeasterly has held for 7 hours at much the same temperature as the 10°C water. No thermal steer either way, but the drift still stacks food against the south-western end — the bank it is blowing into — so start there. This reads the upper water, though — a bottom bait at range feels it far less than a floater or a fish in the margins. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.

How to fish it · for Trout
When
The buzzer is on. Sedge 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

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

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 2 guilds as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
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
Trout fly box
Bays & launches · 1
Day ticket via Cambrian Angling AssociationAccess varies
Premium, lower-elevation llyn holding wild brown trout plus stocked rainbows, 3-fish bag limit; covered by the Cambrian AA's single day ticket across the whole llyn portfolio.
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 Dubach y Bont
1.0 km
Brown trout
Llynnoedd Gamallt
2.0 km
Brown trout
Llyn Manod
3.0 km
Brown trout
Llyn Dubach
4.0 km
Brown trout
Llyn Cwmprysor
6.0 km
Brown trout
Gallery · 2
  1. Bright blue upland lake (Llyn Morwynion) behind a dry stone wall, with green hills under a clear sky, Snowdonia.
    Llyn Morwynion
  2. Terrain map of the venue
    Terrain map
About this water

Morwynion carries the same premium status as Gamallt — strong enough a fishery that the club caps it at three fish a day — and adds something none of the wild-only llyns can offer: a stocking of rainbow trout alongside the resident browns. That combination makes it one of the more reliable waters in the portfolio on a difficult day, when the wild fish are sulking and a stocked rainbow will at least save the session. Lower down and easier to reach than the high mountain llyns, it's a sensible choice when time or weather rules out the longer walks further into the hills.

  • Lake
  • Ordovician volcanics
Why this score
  • Buzzer is in its 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
Boards & regulators