Rules at a glance
- Public water
- Licence required
Water temperature for Sea Trout
Warm — slow19°C est.ideal 8–15°C
0°14°28°
How to fish it · for Sea Trout
When
From dusk into the first half of the night.
Where
Deeper pools and slower glides · hold water and current seams.
Method
Fish dark patterns on a sink-tip or lightly sunk line, especially near structure.
Kit
10 ft #6/7 rod, floating line with a sink-tip option, 8–10 lb fluoro tippet for the swing.
Why this works
Water at 19°C — above the sea trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 12pm
12pm(now) — Heather Fly
Stage: Terrestrials on topApproach: Dry flyActivity: 69%
Also:Black Gnat28%
Peak emergence windowWeather boost8 food groups active
Peak activity at 12pm — Heather Fly (Heather Fly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 with Pro.
Start free trial14-day free trial. Cancel anytime.
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
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Sea Trout fly box
Top
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.
2-4 inch · Streamer
A mobile eel-like profile that undulates through deep pools — effective when sea trout are lying deep and not responding to conventional wets.
Beats · 1
Purón · 1.2 kmTrout permit
Trout permit stretch — Puente de ferrocarril to 25 m aguas abajo de la última caseta de pescadores, en línea de playa.
Beat detail
Daily permit required, keep within bag limits
Upstream: Puente de ferrocarril
Downstream: 25 m aguas abajo de la última caseta de pescadores, en línea de playa
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
- Se requiere licencia de pesca asturiana
- Se aplica la normativa de trucha de mar — comprueba las normas vigentes.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 2
Water here around 19°C — probably warm enough to stress Sea Trout . These are likely cooler.
Gallery · 2
As it comes to the sea, full of mullet Terrain map
Why this score · for Sea Trout
- Temperature128% weight
- Flow4022% weight
- Clarity8518% weight
- Feeding Time4013% weight
- Pressure857% weight
- Insect activity5712% weight
Directions
Seasons & zones
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts
Río Purón
Water temperature for Sea Trout
Warm — slow19°C est.ideal 8–15°C
0°14°28°
How to fish it · for Sea Trout
When
From dusk into the first half of the night.
Where
Deeper pools and slower glides · hold water and current seams.
Method
Fish dark patterns on a sink-tip or lightly sunk line, especially near structure.
Kit
10 ft #6/7 rod, floating line with a sink-tip option, 8–10 lb fluoro tippet for the swing.
Why this works
Water at 19°C — above the sea trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 12pm
12pm(now) — Heather Fly
Stage: Terrestrials on topApproach: Dry flyActivity: 69%
Also:Black Gnat28%
Peak emergence windowWeather boost8 food groups active
Peak activity at 12pm — Heather Fly (Heather Fly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 with Pro.
Start free trial14-day free trial. Cancel anytime.
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
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Sea Trout fly box
Top
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.
2-4 inch · Streamer
A mobile eel-like profile that undulates through deep pools — effective when sea trout are lying deep and not responding to conventional wets.
Beats · 1
Purón · 1.2 kmTrout permit
Trout permit stretch — Puente de ferrocarril to 25 m aguas abajo de la última caseta de pescadores, en línea de playa.
Beat detail
Daily permit required, keep within bag limits
Upstream: Puente de ferrocarril
Downstream: 25 m aguas abajo de la última caseta de pescadores, en línea de playa
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
- Se requiere licencia de pesca asturiana
- Se aplica la normativa de trucha de mar — comprueba las normas vigentes.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 2
Water here around 19°C — probably warm enough to stress Sea Trout . These are likely cooler.
Gallery · 2
As it comes to the sea, full of mullet Terrain map
Why this score · for Sea Trout
- Temperature128% weight
- Flow4022% weight
- Clarity8518% weight
- Feeding Time4013% weight
- Pressure857% weight
- Insect activity5712% weight
Directions
Seasons & zones
Sea trout: Variable seasonal (2026)
Related guides
Booking & contacts