- Ecology: Unknown
- Chemical: Unknown
Rules at a glance
- Day tickets
- Walk-up OK
- C&R only
Head to
Wind driftSW wind
South-western end
A southwesterly has held for 6 hours, running colder than the water (10°C air against 12°C water). The end it blows into is taking that chilled surface water, so try the sheltered south-western end instead — off the back of the wind, where the undertow returns food along the bottom. That chill sits in the top of the water, though, and the bed is slower to feel it — on a bottom bait it is the undertow, not the temperature, that puts you at this end. 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
Where
Start with Perch Fry (8-10_long_shank) — on the point. If that does not produce, switch depth or speed before changing the pattern entirely.
The plan
Plan A
Start with Perch Fry (8-10_long_shank) — on the point. If that does not produce, switch depth or speed before changing the pattern entirely.
Plan B
If fish refuse the top team, swap the bob fly for a CDC emerger and fish a single dry slowly on a long leader.
Watch for
Watch for Sedge towards evening — this could be the best window of the day.
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 trial14-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 trial14-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
Trout seasonSeason
1
2
2
2
2
2
1
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
What's coming
Plan ahead
5-day outlook
Condition match
50%
Cloud25%
Wind30%
Temp100%
A reasonable day here, though cloud isn't quite in the sweet spot.
Fishing better nearby · 5
Gallery · 2
Bohernabreena Reservoir in the Dublin Mountains, Co. Dublin. Terrain map
Water quality (WFD)
Why this score
- Wind conditions (windy) are not ideal for this water.
- Temperature (cool) is in the sweet spot for autumn fishing.
- Lake Olive is in its seasonal window, boosting the chance of targeted feeding.
- Reservoirs of this kind fish hard at this time of year.
Directions
Seasons & zones
- Trout 1 March → 30 September
Related guides
Casting instructors near here
Booking & contacts
Permits & access
Bohernabreena Reservoirs
Head to
Wind driftSW wind
South-western end
A southwesterly has held for 6 hours, running colder than the water (10°C air against 12°C water). The end it blows into is taking that chilled surface water, so try the sheltered south-western end instead — off the back of the wind, where the undertow returns food along the bottom. That chill sits in the top of the water, though, and the bed is slower to feel it — on a bottom bait it is the undertow, not the temperature, that puts you at this end. 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
Where
Start with Perch Fry (8-10_long_shank) — on the point. If that does not produce, switch depth or speed before changing the pattern entirely.
The plan
Plan A
Start with Perch Fry (8-10_long_shank) — on the point. If that does not produce, switch depth or speed before changing the pattern entirely.
Plan B
If fish refuse the top team, swap the bob fly for a CDC emerger and fish a single dry slowly on a long leader.
Watch for
Watch for Sedge towards evening — this could be the best window of the day.
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 trial14-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 trial14-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
Trout seasonSeason
1
2
2
2
2
2
1
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
What's coming
Plan ahead
5-day outlook
Condition match
50%
Cloud25%
Wind30%
Temp100%
A reasonable day here, though cloud isn't quite in the sweet spot.
Fishing better nearby · 5
Gallery · 2
Bohernabreena Reservoir in the Dublin Mountains, Co. Dublin. Terrain map
Water quality (WFD)
- Ecology: Unknown
- Chemical: Unknown
Why this score
- Wind conditions (windy) are not ideal for this water.
- Temperature (cool) is in the sweet spot for autumn fishing.
- Lake Olive is in its seasonal window, boosting the chance of targeted feeding.
- Reservoirs of this kind fish hard at this time of year.
Directions
Seasons & zones
- Trout 1 March → 30 September
Related guides
Casting instructors near here
Booking & contacts
Permits & access