Spate · Volcanic · Co. Londonderry / Foyle System

River Faughan

The River Faughan flowing through open countryside in County Londonderry, Northern Ireland

The Faughan is the best sea trout river in the Foyle system and one of the finest small spate rivers in Northern Ireland.

Fair · Atlantic Salmon
Cascade · 10-14
Fairlive now
Decent — worth a look
River steady at a fishable height. A patient day. Cover water properly.
75% confidence
What moved it
  • Level0.88 m
  • Water temp17.2°C
  • ClarityClear
Today's fly
Cascade
Cascade10-14
Regional salmon default — river-specific evidence is thin.
Conditions on the water
Live gauge
Level
Steady
0.88 m
Water temp17.2°C
ClarityClear
Weather16°C
WindNW 14 km/h
Pressure1021 hPa
Rain · recent1.2 mm
Rain · ahead2.7 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Atlantic Salmon
Warm — slow
17°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
Fair conditions based on river hydrology and migration patterns.
Hatch timeline · todayPeak at 6am

Hatch predictions

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

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

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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

Connemara/Mayo low water: a lightly-dressed shrimp on a floating line with sink tip, sized down from 8s in cold spring water to 12s and 14s as summer water warms and clears. Where the current runs faster, a slim tube or hairwing swung through tracks better than a shrimp.

What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
  1. The River Faughan flowing through open countryside in County Londonderry, Northern Ireland
    The River Faughan, County Londonderry
  2. Terrain map of the venue
    Terrain map
About this water

The Faughan is the best sea trout river in the Foyle system and one of the finest small spate rivers in Northern Ireland. Rising in the Sperrins, it flows through Claudy to the Foyle near Derry. Fast-response basalt catchment — rises within hours of rain and clears quickly. Sea trout from May are the main draw, with salmon from April. The river is intimate and wadeable throughout. Managed by Faughan Anglers with day permits. Evening sea trout fishing from June onwards is outstanding. Volcanic bedrock underlies this river. Atlantic salmon are managed under DAERA and Loughs Agency conservation byelaws, with mandatory catch-and-release on many waters; check current rules before fishing.

Hatches & food

No venue-specific hatch data yet; as an upland spate/headwater river, expect sparse stonefly and small upwing activity driven by rainfall rather than a dependable rise — a general expectation, not an observed hatch.

Sea trout here

Summer-autumn runs, seasonal patterns vary by region

  • Volcanic
The full read · show the working · for Atlantic Salmon · confidence 75%
How the river scores — hydrology factors
Water heightMedium Ideal0.0
Recent riseNone0.0
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate0.0
Time in seasonOpening Period0.0
ClarityClearing0.0
Hydrology base0.0
Legal gate: Unknown Check Local Rules
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Directions
Seasons & zones
  • Salmon 1 April31 October

Sea trout: Variable seasonal (2026)

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