Spate · Old Red Sandstone · South West / Cork, IE

River Coomhola

River Coomhola terrain map

A West Cork spate river draining the uplands above Bantry Bay, running south through Kealkil to enter the Bantry estuary east of Bantry town.

Poor · Atlantic Salmon
Cascade · 10–14 doubles
Poorlive now
Slow going — better windows ahead
Low and clear — careful approach country. Stale fish in low clear water spook easily — pick your hour.
80% confidence
What moved it
  • LevelProxyvia River Sullane
  • Water temp18.9°C
  • ClarityClear
Today's fly
Cascade
Cascade10–14 doubles
Universal SW Ireland salmon fly. Works on everything from the Cork Blackwater to the small Kerry spate rivers. Fish on a relaxed swing through the main pools; downsize for low summer water.
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via River Sullane
Water temp18.9°C
ClarityClear
Weather13°C
WindN 13 km/h
Pressure1023 hPa
Rain · recent0.8 mm
Rain · ahead1.7 mm

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

Water temperature for Atlantic Salmon
Warm — slow
19°C est.ideal 1014°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Morning into early afternoon.
Where
Pool tails, steadier runs, and any water with pace.
Method
Fish a sensible line-and-fly combination for the height and pace of water.
Kit
13 ft #8/9 double-hander in spate, 10 ft #8 single in low water. Floating line plus a fast-sink tip. 12–15 lb fluoro tippet.
Why this works
Water at 18.9°C — above the atlantic salmon caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 6am

Hatch predictions

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Sub-surface · on the nymphunder the surface

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Beyond the hatch · worth watchingambient prey

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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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
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
Atlantic Salmon fly box

Munster Blackwater and neighbouring SW spring rivers: when the water is cold or running high, a tube fly fished deep on a Skagit head or sinking shooting head with a heavier leader finds fish that a floating line can't reach. Comes down to a 9'-10' single-handed rod and small flies on an 8lb tippet once the river drops into summer trim.

Permits & access
Permit required — see local rules.
  • South Western Fisheries District
  • Coomhola Salmon and Trout Anglers Association — daily and weekly permits available
  • Designated catch-and-release for 2026 under IFI conservation measures (verify before trip)
  • State rod licence required.
What's coming
Plan ahead
5-day outlook
Water here around 19°C. Nothing cooler within range — carry a thermometer.
About this water

A West Cork spate river draining the uplands above Bantry Bay, running south through Kealkil to enter the Bantry estuary east of Bantry town. Old Red Sandstone geology gives the water a peaty, amber character that clears quickly after rain. Sea trout and grilse run from June on high water. Not a large river by Irish standards, but genuine migratory fish use it, and the brown trout in the upper reaches are wild and willing on the dry fly through spring. Local club access. The Bantry Bay setting — mountains, sea inlets, southwest light — makes this worth visiting even on a quiet day. For 2026 this is a catch-and-release fishery under the Wild Salmon & Sea Trout Tagging Scheme — all salmon and grilse must be returned.

Hatches & food

EPA freshwater monitoring on the River Coomhola confirms mayflies, stoneflies, caddis, aquatic diptera and freshwater shrimp are present in the riverbed community. The records establish food presence rather than emergence timing or a dependable rise.

  • Old red sandstone
Water quality (WFD)
  • EcologyUnknown
  • ChemicalUnknown
Why this score · for Atlantic Salmon
  • Temperature1530% weight
  • Flow6025% weight
  • Clarity9520% weight
  • Feeding Time1015% weight
  • Pressure8510% weight
Directions
Seasons & zones
  • Salmon 17 March30 SeptemberC&R

Sea trout: Variable seasonal (2026)

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