Limestone · West / Mayo

Lough Carra

Lough Carra terrain map

Crystal-clear marl lake adjacent to Lough Mask — one of Ireland's purest limestone loughs.

Fair · Trout
Peter Ross Dabbler · 10-12
Fairlive now
Good drifting conditions on Lough Carra
Good wave on — drift country. A useful wave. Work the productive shore.
53% confidence
What moved it
  • WindNW 14 km/hGentle breeze
Today's fly
Peter Ross Dabbler
Peter Ross Dabbler10-12
Proven pattern for this period
Conditions on the water
Live gauge
Wind
Gentle breeze
NW 14 km/h
N
NW
from the north-west
Wave20 cm ripple
Water temp13.8°C
Air temp16°C
CloudBroken
Pressure1023 hPa
Rain · recent0.0 mm

Live readings only. Trends shown where the gauge supports them.

How to fish it · for Trout
When
Mayfly into Green Peter from mid-May to mid-June. Olives March through May. Carra needs calm conditions — flat calm is fishable here where on Mask it would be dead, the clarity does the rest.
Where
Marl shallows around the eastern bays. Cruising trout sight-fishable in clear water — this is the lough where you spot fish before you cast to them.
Method
Drift the marl shallows at 1 to 2 m. Team of three wets in a wave; switch to single dry the moment you spot a cruising fish. The clarity demands accuracy and finer tippet than Corrib or Mask.
Kit
10 ft #5 — Carra runs lighter than Corrib for the clarity. Floating line, 5x or 6x tippet, 12 ft tapered leader. Long-handled net.
The plan
Plan A

Set up a broadside drift and cover the water systematically. Work Bibio on the bob and Peeping Caddis on the point. Have a sedge or murrough pattern ready on a short leader for the evening rise.

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.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 4 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
1
Green PeterHatch
2
3
2
Murrough (Great Red Sedge)Hatch
2
3
2
Daddy Long LegsHatch
2
3
2
Mayfly (Green Drake)Hatch
2
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Trout fly box
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
  • No permit — state rod licence only
  • Boats available
  • Fly only
  • C&R strongly encouraged.
What's coming
Plan ahead
5-day outlook
Condition match
72%
Cloud100%
Wind30%
Temp100%

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

Other water nearby · 5
About this water

Crystal-clear marl lake adjacent to Lough Mask — one of Ireland's purest limestone loughs. Excellent wild brown trout with superb olive and mayfly hatches. Shallow and exposed which means it needs calm conditions, but when you get the right breeze and the right hatch, the fishing can be magical. The clarity is remarkable — you'll see fish that most anglers never get to sight fish to.

Hatches & food

Duckfly hatches typically run from late March to early May, followed by the main olive hatches beginning around mid-April. Mayfly can start in late April or early May and is usually best by mid-May, with sedges carrying the fishing from May through the rest of the season and especially good in July. Murroughs and smaller late sedges become plentiful again in August and September, mostly in the evening.

  • Lough system
  • Limestone
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown
What this classification means

WFD code normalized 2026-06-18: IE_WE_30_347 → IEWE_30_347 (EPA national format → EEA WISE euSurfaceWaterBodyCode; same water body, now joinable to WISE). Status confirmed against EEA WISE 2022 (3rd RBMP). Source: discodata.eea.europa.eu. | Prior note: EPA WFD 2019-2024 (lake layer) — Lough Carra: Good ecological status. Re-tagged 2026-06-18 from IEWE_30L030400 (a river/stream water body, not the lough) to the lough's own EPA lake water body. Source: EPA Ireland WFD 2019-2024 classification (catchments.ie / EDEN).

EPA (Ireland) · IEWE_30_347

Why this score
  • Wind conditions (breezy) are not ideal for this water.
  • Cloud cover (mixed) suits the fishery well.
  • Temperature (cool) is in the sweet spot for summer fishing.
  • Murrough is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 1 March30 September
Related guides
Casting instructors near here
Booking & contacts