Spate · Slate · Mid Wales / Gwynedd-Powys, GB-WLS

Dovey (Dyfi)

A stone bridge crossing the River Dovey (Afon Dyfi) at Machynlleth, with wooded hills behind.

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

Poor · Sea Trout
Black & Silver Tube · 1–2 inch
Closed season
Out of season. File this water for the right month.
Closed — confidence not applicable today.
What moved it
  • Level1.08 m
  • Water temp7.4°C
  • ClarityClear
Today's fly
BS
Black & Silver Tube1–2 inch
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
Conditions on the water · Today
Live gauge
Level
Steady
1.08 m
Water temp7.4°C
ClarityClear
Weather5°C
WindN 24 km/h
Pressure1013 hPa
Rain · recent0.0 mm
Rain · ahead6.4 mm

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

Water temperature for Sea Trout
Cool — slow
7°C est.ideal 8–15°C
0°14°28°
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.
Likely species
Stoneflies
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 4 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

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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 · November 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
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2

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

Ranked for today
Sea Trout fly box

Wild-river first principles. Early-season nymphs and practical searching, then dry flies, emergers and spiders as hatches and surface activity improve.

BS
Black & Silver TubeTop
1–2 inch · Tube
In deep pools and dark water, silhouette and contrast do the work colour cannot. A fly that reads as black against depth is enough. Fish it broadside, hold the swing, let it hang at the dangle — that is when the best fish take.
Medicine Fly
Medicine Fly
8–12 · Streamer
Slim and mobile — fished sunk through the pool when surface work is not producing. Consistently takes fish that will not come to the surface.
Beats · 1
River Twymyn — Llanbrynmair AADay tickets
A Dyfi tributary through a scenic waterfall gorge near Dylife, joining the Dyfi near Cemmaes Road.
Visit official site ↗
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Dysynni
8.0 km
0
Brown trout · Salmon · Sea trout
Mawddach
18 km
0
Brown trout · Salmon · Sea trout
Rheidol
24 km
0
Brown trout · Salmon · Sea trout
Ystwyth
28 km
0
Brown trout · Salmon · Sea trout
Afon Eden (Welsh)
24 km
Brown trout
Gallery · 7
  1. A stone bridge crossing the River Dovey (Afon Dyfi) at Machynlleth, with wooded hills behind.
    Pont ar Ddyfi, the bridge over the Afon Dyfi (Dovey) at Machynlleth
  2. The historic Pont Minllyn packhorse bridge across the River Dyfi at Dinas Mawddwy, water visible beneath the arch.
    River Dyfi at Pont Minllyn, Dinas Mawddwy
  3. The River Dovey seen from the A487 road in Ceredigion, Wales, in spring.
    River Dovey from the A487
  4. The River Dyfi flowing through the Machynlleth reach with the Cambrian railway line in the landscape.
    The River Dyfi, Machynlleth
  5. The River Dovey upstream of the Pont ar Ddyfi road bridge at Machynlleth in winter.
    River Dovey upstream of Pont ar Ddyfi
  6. The Afon Dyfi flowing past a bridge near Machynlleth with Welsh hills in the background.
    Afon Dyfi near Machynlleth
  7. Terrain map of the venue
    Terrain map
About this water

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 and schist bedrock underlie this river. Atlantic salmon are under serious conservation pressure — Natural Resources Wales mandates catch-and-release for salmon on all rivers, so all fish must be returned.

Sea trout here

Summer-autumn runs (June–September), primarily nocturnal

  • Slate
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown

NRW (Wales) · UKGB110064048390

The full read · show the working · for Sea Trout · 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
Apple MapsGoogle Maps
Seasons & zones
  • Salmon 20 March → 17 October
  • Trout 3 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.

Related guides
Fly Fishing in North and Mid Walesfeatured in this guideYorkshire & SpidersNorth Country methodsEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts
Boards & regulators
At a glance

Dovey (Dyfi) is a spate river in Mid Wales / Gwynedd-Powys. The catchment geology is recorded as slate, and the water sits at about 14 m above sea level. The river is described as roughly 48 km long. Species listed for this water: brown trout, salmon and sea trout. It is classed as a salmon river. The salmon season is recorded as running from 20 March to 17 October. The trout season is recorded as running from 3 March to 30 September. Best window recorded for anglers: May to September. Core methods listed: upstream nymph; dry fly; small wet fly. Level and flow data for this water is linked from 1 gauge. Its Water Framework Directive ecological status is recorded as good. Nearby waters in our listings include Dysynni at 8.0 km, Mawddach at 18 km and Rheidol at 24 km.