Spate · Peat · North West / Mayo

Glenamoy River

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

Warm — handle with careAtlantic Salmon are stressed by warm water — handle every fish carefully.

Water measured at 18.5°C from the nearest gauge. Above 18°C, the risk of killing a released fish climbs. Fish dawn or dusk only — the water can be two or three degrees cooler at first light. Barbless hooks. Land it fast — under thirty seconds. Wet hands. No air shots. If a fish swims off slowly or rolls, stop fishing for the day.

DepthShaded riffles, deep pools, spring inflows, cold tributary mouths. Work them and move on.
TimingDawn and dusk only. Avoid the middle of the day — the water peaks then and the fish are most stressed.

Marginallive now

Marginal — persistence required

Low and clear — careful approach country. Hard going on bright water. Favour cloud and shadow.

80% confidence

Notify when prime

What moved it

LevelProxyvia Owenmore (Erris)
Water temp18.5°C
ClaritySlightly coloured

Rules at a glance

Permit required
Walk-up OK
C&R only

Live now

Conditions on the water

Proxy gauge

Trends shown where the gauge supports them

Level

Steady

Proxy

via Owenmore (Erris)

Water temp

18.5°C

coldwarm

Clarity

Slightly coloured

Weather

20°C

Mostly cloudy

Wind

NE 27 km/h

calmblown out

Pressure

1014 hPa

lowhigh

Rain · recent

2.5 mm

dryspate risk

Rain · ahead

17.7 mm

dryspate risk

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

18.5°Cideal 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 18.5°C — above the atlantic salmon caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — time of day is in the right range.

Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour with Pro.

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Through the year

0–3 scale · June highlighted

Salmon run

Sea trout run

Daddy Long Legs

March Brown

Grannom

Large Stonefly

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

What's coming

Plan ahead

5-day outlook

Water here at 18.5°C. Nothing cooler within range.

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.

Peat

Water quality (WFD)

Ecology: Unknown
Chemical: Unknown

Why this score · for atlantic salmon

Temperature1930% weight
Flow6025% weight
Clarity8520% weight
Feeding Time9015% weight
Pressure8510% weight

Directions

Apple Maps Google Maps

Seasons & zones

Salmon1 May → 30 SeptemberC&R
Sea trout1 May → 30 SeptemberC&R

Related guides

Booking & contacts