Spate · Old Red Sandstone · South West / Cork

River Arigideen

River Arigideen venue image
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A lovely West Cork river draining some fifty-six square miles to the sea, the Arigideen is primarily a sea-trout fishery, with the occasional salmon or grilse through the season.

Marginal · Brown Trout
Pheasant Tail Nymph · 14-18
Marginallive now
Slow going — pick your moments
River high but settled. Take your time — read the water before you cast.
80% confidence
What moved it
  • LevelProxyvia Bandon
  • Water temp18.3°C
  • ClarityVery colouredColouring up
Today’s fly
Pheasant Tail Nymph
Pheasant Tail Nymph14-18
Upstream
Conditions on the water
Proxy gauge
Level
Rising
Proxy
via Bandon
Water temp18.3°C
ClarityVery coloured
Weather24°C
WindSE 22 km/h
Pressure1013 hPa
Rain · recent0.0 mm
Rain · ahead10.1 mm

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

Water temperature for brown trout
Warm — slow
18.3°Cideal 10–16°C
0°14°28°
How to fish it · for brown trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
⚠️ Water at 18.3°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — barometric pressure is in the right range.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 9 active hatches hour by hour with Pro.

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Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
2
1
Sea trout runRun
1
2
2
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
2
1
Daddy Long LegsHatch
2
3
2
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2

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

Ranked for today
Brown Trout fly box
What's coming
Plan ahead
5-day outlook
Water here at 18.3°C. Nothing cooler within range.
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

A lovely West Cork river draining some fifty-six square miles to the sea, the Arigideen is primarily a sea-trout fishery, with the occasional salmon or grilse through the season. For 2026 it is catch-and-release only, for salmon and sea trout alike. Fish it on a flood, when fresh fish have run. There is disabled-angler access at Inchy Bridge. Single or double barbless hooks only, no worm, under Bye-law 982 of 2020. Arigideen Anglers Association and IFI Macroom hold the water.

  • Old red sandstone
The full read · show the working · for brown trout · confidence 80%
How the 30 is built — score × weight = contribution
Temperature51 × 28%14.3
Flow30 × 22%6.6
Clarity15 × 18%2.7
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity45 × 12%5.4
Limiting factor: Water is very coloured — too coloured for Brown Trout= 42
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowproxy via Bandonproxy
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Salmon15 February → 30 SeptemberC&R
  • Sea trout15 February → 12 OctoberC&R
  • Trout15 February → 30 September
Related guides
ConnemaraIrish fishingEuro Nymphingsubsurface methods
Booking & contacts