Stillwater · Slate · North Wales / Conwy, GB-WLS

Llyn Crafnant

Llyn Crafnant lake surrounded by forested hills near Trefriw, Conwy
Fair · Trout
Booby · 10-12
Fairlive now
Good drifting conditions on Llyn Crafnant
Useful ripple, fishable wave. Worth a session if the wind holds.
58% confidence

Llyn Crafnant is often best in spring through autumn.

What moved it
  • WindS 31 km/hFresh breeze
Today's fly
Booby
Booby10-12
Washing-line, sub-surface
Conditions on the water
Estimate
Wind
Fresh breeze
S 31 km/h
N
S
from the south
Wave60 cm wave
Water temp15.5°C
Air temp15°C
CloudOvercast
Pressure1002 hPa
Rain · recent0.0 mm

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

Head to
Wind driftS wind
Northern end

A southerly has held for 11 hours, running warmer than the water (19°C air against 16°C water). Expect fish at the northern end — the bank it is blowing into — where the drift piles food, colour and warmth together. 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 daddy longlegs are on. Buzzer may also come into play as the day warms. The breeze will be blowing terrestrial insects onto the water — check the wind lanes and downwind margins for rising fish.
Where
Work Autumn Buzzer on the bob and Cormorant on the point.
The plan
Plan A

Work Autumn Buzzer on the bob and Cormorant 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 · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Reservoir BuzzerHatch
2
3
3
3
3
3
2
Daphnia SwarmHatch
2
3
3
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
Fly box · Trout
Bays & launches · 1

No confirmed current fishery operator as of June 2026. Confirm status directly before planning a trip — the operator's own website is stale and does not reflect the closure.

Fishery status — currently closedMembers-only
fishingwales.
Visit official site ↗
What's coming
Plan ahead
5-day outlook
Condition match
45%
Cloud50%
Wind30%
Temp60%

Conditions are away from Llyn Crafnant's sweet spot — it usually fishes best in ripple wind with cloud skies.

Other water nearby · 5
Gallery · 2
  1. Llyn Crafnant lake surrounded by forested hills near Trefriw, Conwy
    Llyn Crafnant, a lake in the Gwydir Forest, Snowdonia
  2. Terrain map of the venue
    Terrain map
Why this score
  • Wind conditions (windy) are not ideal for this water.
  • Daddy Longlegs are in their seasonal window, boosting the chance of targeted feeding.
Related guides
Casting instructors near here
Booking & contacts
Boards & regulators