Stillwater · Granite · Co. Down / Mourne Mountains

Spelga Reservoir

Spelga Reservoir terrain map

Spelga is a high Mourne reservoir and one of the more attractive wild-trout stillwaters in the DAERA estate.

Fair · Trout
Gosling · 8-10
Fairlive now
Reasonable summer fishing likely at Spelga Reservoir
Good wave on — drift country. A useful wave. Work the productive shore.
52% confidence

Spelga Reservoir is often best in spring through autumn.

What moved it
  • WindSW 18 km/hGentle breeze
Today's fly
Gosling
Gosling8-10
High-confidence seasonal pick
Conditions on the water
Live gauge
Wind
Gentle breeze
SW 18 km/h
N
SW
from the south-west
Wave20 cm ripple
Water temp
Air temp23°C
CloudBroken
Pressure1019 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
April–September
Where
Start with Bibio (10-12) — on the bob / top dropper. If that does not produce, switch depth or speed before changing the pattern entirely.
The plan
Plan A

Start with Bibio (10-12) — on the bob / top dropper. If that does not produce, switch depth or speed before changing the pattern entirely.

Plan B

Fish early and late, try deeper during the heat of the day with a fast-sinking line.

Watch for

Watch for Murrough towards evening — this could be the best window of the day.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
1
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
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

Spelga is a high Mourne reservoir and one of the more attractive wild-trout stillwaters in the DAERA estate. The water is exposed, weather-sensitive and much more like an upland hill water than a manicured stocked fishery. It suits anglers who are happy with modest trout sizes, moving weather and classic dark-fly tactics.

  • Reservoir
  • Granite
Why this score
  • Daddy longlegs are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 1 March31 October
Related guides
Casting instructors near here
Booking & contacts