Spate · Mixed · South-West / Cork, IE

River Ilen

River Ilen venue image

West Cork spate river flowing to Roaringwater Bay.

Good · Sea Trout
Black & Silver Tube · 1-2 inch
Goodlive now
A good day — worth the effort
River lifting fast on the rain. Fish are running but seldom taking on rising water. Mark the lies now, fish hard once it drops.
65% confidence
What moved it
  • LevelProxyvia River Sullane
  • Water temp15.1°C
  • ClarityUnfishableColouring up
Today's fly
BS
Black & Silver Tube1-2 inch
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
Conditions on the water · Tomorrow
Proxy gauge
Level
Rising
Proxy
via River Sullane
Water temp15.1°C
ClarityUnfishable
Weather13°C
WindN 31 km/h
Pressure1003 hPa
Rain · recent8.0 mm
Rain · ahead8.5 mm

No gauge on this water — conditions are inferred from River Sullane. The trend transfers, the absolute level does not.

Water temperature for Sea Trout
Warm — slow
15°C est.ideal 8–15°C
0°14°28°
How to fish it · for Sea Trout
When
From dusk into the first half of the night.
Where
Deeper pools and slower glides · hold water and current seams.
Method
Fish dark patterns on a sink-tip or lightly sunk line, especially near structure.
Kit
10 ft #6/7 rod, floating line with a sink-tip option, 8–10 lb fluoro tippet for the swing.
Why this works
Good — water temperature is right today, though water clarity could be better.
Likely species
Mayflies
Stoneflies
Caddisflies
Gammarids
Hatch timeline · todayPeak at 6am

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 as a supporter.

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Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
2
1
March BrownHatch
2
3
2
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2

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

Ranked for today
Sea Trout fly box
BS
Black & Silver TubeTop
1-2 inch · Tube
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
Medicine Fly
Medicine Fly
8-12 · Streamer
Slim and mobile — fished sunk through the pool when surface work is not producing. Consistently takes fish that will not come to the surface.
SF
Snake Fly (Black)
2-4 inch · Streamer
A mobile eel-like profile that undulates through deep pools — effective when sea trout are lying deep and not responding to conventional wets.
Permits & access
Permit required — see local rules.
  • South Western Fisheries District
  • River Ilen AC manages the river around Skibbereen
  • Permits from Field Newsagents, The Square, Skibbereen (+353 28 21400)
  • Shrimp prohibited (fly, spinning, worm only)
  • Night fishing prohibited to visiting anglers
  • State rod licence required.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
River Ilen
< 1 km
Brown trout · Sea trout
Shepperton Lake
9.0 km
Brown trout · Rainbow trout
Ballin Lough (West Cork)
11 km
Rainbow trout · Brown trout
Lough Bofinne
16 km
Brown trout · Rainbow trout
River Coomhola
23 km
Brown trout · Salmon · Sea trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

West Cork spate river flowing to Roaringwater Bay. Wild brown trout with some sea trout. Mixed geology in a mild Atlantic-coast catchment.

Hatches & food

EPA freshwater monitoring on the River Ilen confirms mayflies, stoneflies, caddis, aquatic diptera and freshwater crustaceans (shrimp and hoglice) are present across its monitored segments. The records establish food presence rather than adult emergence timing.

  • Mixed
Why this score · for Sea Trout
  • Temperature10028% weight
  • Flow5522% weight
  • Clarity4518% weight
  • Feeding Time8013% weight
  • Pressure857% weight
  • Insect activity5912% weight
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Salmon 1 February → 30 September
  • Trout 15 February → 30 September
Related guides
ConnemaraIrish fishingEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts