Spate · Slate · Mid Wales / Gwynedd-Powys

Dovey (Dyfi)

Dovey (Dyfi) terrain map
Terrain map

Mid Wales spate river flowing into Cardigan Bay — salmon (spring and strong late-season autumn runs) and sea trout from June onwards.

Species

A good day — worth the effort

River high but settled. Water still carrying colour. Heavier flies, settled lies.

75% confidence in this read
Water temperature for sea trout
Cool — slow
6°C est.ideal 8–15°C
0°14°28°
Why this score · for sea trout
  • Temperature5628% weight
  • Flow9522% weight
  • Clarity8518% weight
  • Feeding Time5513% weight
  • Pressure857% weight
  • Prey Activity2612% weight
Conditions
Level
1.01 m
Water temp
6.4°C
Estimated
Clarity
Clear
Clearing
Air temp
8°C
Wind
W 11 km/h
Light breeze
Pressure
1007 hPa
Rain · 48h
0.9 mm
No meaningful rain
Rain · ahead
26.5 mm
Heavy rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

How to fish it · for sea trout
When
June through September; July into August prime. Night fishing from full dark when water rises above 13°C. NRW classifies the sewin stock 'At Risk' across Wales — fish carefully if at all, treat C&R as a default. The Dovey's runs have declined alongside the wider Welsh pattern.
Where
Lower Dovey pool tails through to the Aberdyfi tidal limit.
Method
Across-and-down on a floating line with small wets — Medicine, Teal Blue and Silver, Stoat's Tail. Steady swing through the tail-outs, never hurry.
Kit
10 ft #6/7, floating line, 8 to 10 lb fluoro tippet. Spare leader on a wrist spool. Headlamp sparingly; let your eyes adjust.
Why this works
Good conditions. Flow is favourable (95), Prey activity is weakest (26). ⏰ Sea trout become most active after dark, but this stretch closes at 20:50 — before that window fully opens. Fish hard in the last legal hour: overcast skies and warm evenings can bring fish on early even in fading light.
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
2
1
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Yellow SallyHatch
2
3
2

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

Directions
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About this water

Mid Wales spate river flowing into Cardigan Bay — salmon (spring and strong late-season autumn runs) and sea trout from June onwards. Responsive in 5 hours; fish on the rise and drop. Good late-season salmon October–November. Fish sinking-tip with medium tubes in spring, smaller wets for summer sea trout. The Dovey estuary is a Special Area of Conservation. Estuary concentrates migratory fish.

  • Slate
Seasons & zones
  • Salmon20 March → 17 October
  • Trout3 March → 30 September

Sea trout: Variable seasonal (2026) — NRW At Risk classification. Mid Wales sea trout river with runs from June but stocks have declined as part of the wider Welsh pattern. Condition-sensitive — post-rain windows are the reliable opportunity.

Salmon: Negligible (2026) — NRW / EA 2024 Salmon Stocks Assessment classifies this Welsh principal salmon river 'at risk' — egg deposition below Conservation Limit. All Wales byelaws (in force 2020-2030) make catch & release mandatory. Conservation priority; not a salmon fishing destination. The Dyfi (Dovey) salmon and sewin runs have both declined sharply.

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