Stillwater · Limestone · Midlands / Roscommon-Westmeath

Lough O'Flynn

Lough O'Flynn venue image
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A 300-acre rich limestone lake in Roscommon, just north of Ballinlough, with wild and stocked brown trout averaging a pound and a half and fish to three or four pounds.

Fair · Trout
Gosling · 8-10
A respectable few hours, if you choose your moments
Good wave on — drift country. A useful wave. Work the productive shore.
49% confidence
limited data
What moved it
  • WindE 16 km/hGentle breeze
Today’s fly
Gosling
Gosling8-10
High-confidence seasonal pick
Conditions on the water
Live gauge
Wind
Gentle breeze
E 16 km/h
N
E
from the east
Wave20 cm ripple
Water temp
Air temp25°C
CloudBroken
Pressure1014 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for trout
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.

Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
1
Daphnia SwarmHatch
2
3
3
3
2
Daddy Long LegsHatch
2
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
Trout fly box
What's coming
Plan ahead
5-day outlook
Condition match
65%
Cloud70%
Wind65%
Temp60%

A reasonable day here, though temperature isn't quite in the sweet spot.

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

A 300-acre rich limestone lake in Roscommon, just north of Ballinlough, with wild and stocked brown trout averaging a pound and a half and fish to three or four pounds. It is renowned for its mayfly — prolific from mid-May into July — followed by a strong sedge season and dapping into the autumn. Midland Fisheries Group permit. The access is good for once, with a pier on the south shore.

  • Lough
  • Limestone
Water quality (WFD)
  • EcologyUnknown
  • ChemicalUnknown
Why this score
  • Silverhorns & Longhorns are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout1 March → 12 October
About this water · Lough note · 4 min read

A 300-acre rich limestone lake in Roscommon, just north of Ballinlough, with wild and stocked brown trout averaging a pound and a half and fish to three or four pounds. It is renowned for its mayfly — prolific from mid-May into July — followed by a strong sedge season and dapping into the autumn. Midland Fisheries Group permit. The access is good for once, with a pier on the south shore.

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