Syfydrin is about a mile north of Pen Dam — ten hectares of upland water with a strong head of small, vividly marked wild brown trout. The banks are boggy away from the road end, so wear sensible boots and pick your wading. Fly, spin and worm permitted on the Aberystwyth AA ticket.
A patient day, if you fancy it
Useful ripple, fishable wave. Take your time — read the water before you cast.
34% confidence — limited data
Live now
Conditions on the water
Trends shown where the gauge supports them
Wind
SW 35 km/h
Fresh breeze
Wave
60 cm wave
Water temp
—
No reading
Air temp
10°C
Cloud
Overcast
Pressure
993 hPa
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
How to fish · for brown trout
The brief
When · where · method · kit
How to fish it · for brown trout
When
Late April–June; evening rises through summer
Where
Work Gold-ribbed Hare's Ear on the bob and Pheasant Tail Nymph on the point.
Today's tactical plan
The plan
Plan A · Plan B · what to watch · bank or boat
The plan
Plan A
Work Gold-ribbed Hare's Ear on the bob and Pheasant Tail 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 — at anchor
Windy conditions suit anchoring in productive areas rather than open-water drifting.
Hatches & runs
What's on, when
Twelve months at a glance
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
1
2
1
Lake OliveHatch
1
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Today's fly · curated pack
Top pattern + the box
6 patterns from this venue's curated pack
Evidence
Why today scores what it does
The factors driving today's verdict
Why this score
- Wind conditions (windy) are not ideal for this water.
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Access · 1
Check the current rules, permits and access before travelling.
Day ticket via Fishing PassportAberystwyth Angling Association (via Fishing Passport)
Wild brown troutFlySpinBait
Upland Plynlimon-foothill lake a mile north of Pen Dam — strong head of small wild brown trout. Boggy banks away from road.
Day ticket via Aberystwyth AA Passport listing. Boggy banks — sensible boots. EA/NRW rod licence required.
Arrange access →About this water · Lough note · 4 min read
Llyn Syfydrin · profile
Who this water suits
Strengths · watch-outs · best for
About this water
Llyn Syfydrin, on the water
Field guide · contributor-editedLlyn Syfydrin · about
What this water is
Background · character · contributors
About this water
Syfydrin is about a mile north of Pen Dam — ten hectares of upland water with a strong head of small, vividly marked wild brown trout. The banks are boggy away from the road end, so wear sensible boots and pick your wading. Fly, spin and worm permitted on the Aberystwyth AA ticket.
- Lake
- Silurian mudstone shale
Llyn Syfydrin · directions
How to get to the water
Directions
Llyn Syfydrin
Syfydrin is about a mile north of Pen Dam — ten hectares of upland water with a strong head of small, vividly marked wild brown trout.
Species
A patient day, if you fancy it
Useful ripple, fishable wave. Take your time — read the water before you cast.
34% confidence — limited data
Conditions
Wind
SW 35 km/h
Fresh breeze
Wave
60 cm wave
Water temp
—
No reading
Air temp
10°C
Cloud
Overcast
Pressure
993 hPa
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
Condition match
41%
Cloud70%
Wind30%
Temp25%
Conditions are away from this venue's sweet spot — it usually fishes best in ripple wind with mixed skies.
How to fish it · for brown trout
When
Late April–June; evening rises through summer
Where
Work Gold-ribbed Hare's Ear on the bob and Pheasant Tail Nymph on the point.
The plan
Plan A
Work Gold-ribbed Hare's Ear on the bob and Pheasant Tail 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 — at anchor
Windy conditions suit anchoring in productive areas rather than open-water drifting.
Why this score
- Wind conditions (windy) are not ideal for this water.
- Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
1
2
1
Lake OliveHatch
1
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Access · 1
Check the current rules, permits and access before travelling.
Day ticket via Fishing PassportAberystwyth Angling Association (via Fishing Passport)
Wild brown troutFlySpinBait
Upland Plynlimon-foothill lake a mile north of Pen Dam — strong head of small wild brown trout. Boggy banks away from road.
Day ticket via Aberystwyth AA Passport listing. Boggy banks — sensible boots. EA/NRW rod licence required.
Arrange access →Directions
About this water
Syfydrin is about a mile north of Pen Dam — ten hectares of upland water with a strong head of small, vividly marked wild brown trout. The banks are boggy away from the road end, so wear sensible boots and pick your wading. Fly, spin and worm permitted on the Aberystwyth AA ticket.
- Lake
- Silurian mudstone shale
About this water · Lough note · 4 min read
Syfydrin is about a mile north of Pen Dam — ten hectares of upland water with a strong head of small, vividly marked wild brown trout. The banks are boggy away from the road end, so wear sensible boots and pick your wading. Fly, spin and worm permitted on the Aberystwyth AA ticket.
Other water nearby · 5