Spate · Limestone · Asturias, Spain

Río Purón

Purón fishing venue photo
Editorial photo

As it comes to the sea, full of mullet

Damian Rafferty

Small eastern coastal river near Llanes.

Species

A good day — worth the effort

Low and clear — careful approach country. Small and bright, long leader, careful approach.

75% confidence in this read
Water temperature for sea trout
Ideal
9°C est.ideal 8–15°C
0°14°28°
Why this score · for sea trout
  • Temperature10028% weight
  • Flow8022% weight
  • Clarity8518% weight
  • Feeding Time5013% weight
  • Pressure857% weight
  • Prey Activity5012% weight
Conditions
Level
Light rain recently
No gauge reading
Water temp
8.7°C
Estimated
Clarity
Clear
Air temp
13°C
Wind
SW 12 km/h
Light breeze
Pressure
1015 hPa
Rain · 48h
2.4 mm
Light rain
Rain · ahead
12.0 mm
Moderate 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
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
Good conditions. Temperature is favourable (100), Prey activity is weakest (50). ⏰ Sea trout become most active from an hour before dusk. This stretch closes at 22:15 — your legal window captures the start of the best fishing. Fish the last 90 minutes hard. Overcast evenings extend the effective window.
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
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.

Gallery · 2
  1. As it comes to the sea, full of mullet
    As it comes to the sea, full of mullet
  2. Terrain map of the venue
    Terrain map
Beats · 1
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
  • Asturian fishing licence required
  • Sea trout regulations apply — check current rules.
Directions
Apple MapsGoogle Maps
About this water

Small eastern coastal river near Llanes. Very short course. Resident trout and a fragile sea trout run. Loads of mullet in the estuary.

Under the surface

The Purón is a short limestone stream descending to the coast near Llanes — barely 10 km, but the geology punches above its size. Limestone cobble and bedrock give the river exceptional clarity; even after a summer spate it clears faster than the surrounding slate-fed drainages. The step-pool sequence and confined valley keep gradients steep. Spate events hit hard and recede quickly — the limestone base drains fast rather than sustaining a prolonged rise. On the drop, the pools focus fish. Wading demands respect: polished wet limestone at step lips can be treacherous underfoot.

Wading: Polished wet limestone slabs at step lips

  • Limestone
  • Confined
  • Bedrock
  • Step pool
Other water nearby · 5
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