Stillwater · Mixed · Co. Down / Castlewellan

Castlewellan Forest Lake

Castlewellan Forest Lake terrain map
Terrain map

Castlewellan Forest Lake is one of the stronger public-estate stocked trout waters in Co.

Fair · Rainbow
Gosling · 8-10
Fairlive now
Buzzer expected on Castlewellan Forest Lake
Good wave on — drift country. A useful wave. Work the productive shore.
56% confidence
What moved it
  • WindNW 16 km/hGentle breeze
Today’s fly
Gosling
Gosling8-10
High-confidence seasonal pick
Conditions on the water
Live gauge
Wind
Gentle breeze
NW 16 km/h
N
NW
from the north-west
Wave20 cm ripple
Water temp
Air temp17°C
CloudBroken
Pressure1018 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for rainbow
When
The buzzer 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

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 · July 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
Rainbow 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
About this water

Castlewellan Forest Lake is one of the stronger public-estate stocked trout waters in Co. Down. Brown and rainbow trout, boat access, a central location and simple DAERA permit logic make it one of the easiest NI stillwaters to approach with confidence. It sits more in the accessible stocked-fishery lane than the wild-upland category.

  • Lough
  • Mixed
Why this score
  • Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout1 March → 31 October
Related guides
Booking & contacts