Stillwater · Silurian Mudstone Shale · Wales / Cambrian Mountains (Ystwyth catchment)

Llyn Frongoch

Llyn Frongoch venue image

Frongoch is the Aberystwyth AA's headline water — eight hectares roadside above Pont-rhyd-y-groes, fly-only, four boats, and a stocking policy that puts decent rainbows over a steady head of wild browns.

Fair · Trout
Diawl Bach · 12-14
Fairlive now
Good drifting conditions on Llyn Frongoch
Good wave on — drift country. A useful wave. Work the productive shore.
60% confidence
What moved it
  • WindNE 12 km/hLight breeze
Today's fly
Diawl Bach
Diawl Bach12-14
Washing-line, sub-surface
Conditions on the water
Live gauge
Wind
Light breeze
NE 12 km/h
N
NE
from the north-east
Wave20 cm ripple
Water temp
Air temp14°C
CloudClear
Pressure
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
The damsel nymph is on. Murrough 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

Murrough should come on through the afternoon as the water warms.

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
Aberystwyth AA's headline water — roadside, fly-only, four boats, stocked rainbows over wild browns.
What's coming
Plan ahead
5-day outlook
Condition match
78%
Cloud25%
Wind100%
Temp100%

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

Other water nearby · 5
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Frongoch is the Aberystwyth AA's headline water — eight hectares roadside above Pont-rhyd-y-groes, fly-only, four boats, and a stocking policy that puts decent rainbows over a steady head of wild browns. Caravan-holders get priority Monday, Tuesday, Thursday and Friday, which is worth knowing if you're planning ahead. The fishing is honest and the access is straightforward — it does what a small Welsh stillwater should do.

  • Lake
  • Silurian mudstone shale
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Temperature (cool) is in the sweet spot for summer fishing.
  • Damsel Nymph is in its seasonal window, boosting the chance of targeted feeding.
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