Spate · Peat · North West / Mayo

Glenamoy River

The Glenamoy River flowing through open bogland in north County Mayo, Ireland.

A remote spate river on the Erris peninsula of north Mayo, lying apart from the Owenmore to its south.

Marginal · Atlantic Salmon
Cascade · 10-14
Marginallive now
Marginal — persistence required
River temperature is the limiting factor today, not the flow. Fish the cool of dawn or dusk, land fish fast, and stop if one struggles to recover.
80% confidence
What moved it
  • LevelProxyvia Owenmore (Erris)
  • Water temp18.1°C
  • ClaritySlightly coloured
Today's fly
Cascade
Cascade10-14
Regional salmon default — river-specific evidence is thin.
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Owenmore (Erris)
Water temp18.1°C
ClaritySlightly coloured
Weather18°C
WindSW 24 km/h
Pressure1018 hPa
Rain · recent1.4 mm
Rain · ahead6.0 mm

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

Water temperature for Atlantic Salmon
Warm — slow
18°C est.ideal 10–14°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 18.1°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

Hatch predictions

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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.

Updated 3 hours ago

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
1
Sea trout runRun
1
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
What's coming
Plan ahead
5-day outlook
Water here around 18°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. The Glenamoy River flowing through open bogland in north County Mayo, Ireland.
    The Glenamoy River in north County Mayo, a spate system for salmon and sea trout.
  2. Terrain map of the venue
    Terrain map
About this water

A remote spate river on the Erris peninsula of north Mayo, lying apart from the Owenmore to its south. This is flood fishing in wild country: grilse and sea trout run on a rise of water, and there is little point being here without one. For 2026 the river is catch-and-release for salmon and sea trout. Enquire with IFI Ballina, and carry the Salmon and Sea Trout State Licence.

Hatches & food

EPA monitoring of the Glenamoy River's WFD reaches confirms mayflies, stoneflies, caddis, aquatic diptera and gammarus are present. This is food-presence evidence from kick sampling only, with no confirmed emergence timing or visible hatch.

  • Peat
Water quality (WFD)
  • Ecology: Unknown
  • Chemical: Unknown
Why this score · for Atlantic Salmon
  • Temperature2430% weight
  • Flow6025% weight
  • Clarity8520% weight
  • Feeding Time3015% weight
  • Pressure8510% weight
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Salmon 1 May → 30 SeptemberC&R
  • Sea trout 1 May → 30 SeptemberC&R
Related guides
Atlantic Salmonsalmon tacticsIrish Salmon Rivers Guidefive great salmon fisheriesConnemaraIrish fishing
Casting instructors near here
Booking & contacts
Permits & access