Spate · Limestone · Asturias, Spain

Río Trubia

Río Trubia venue image
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The Trubia is a limestone tributary with a spectacular gorge — pale stone pools and crystal-clear water holding wild browns (15–32 cm, with larger residents in deep pools).

Species

Decent — worth a look

River steady at a fishable height. A patient day. Cover water properly.

55% 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
  • Temperature4628% weight
  • Flow6022% weight
  • Clarity8518% weight
  • Feeding Time5013% weight
  • Pressure857% weight
  • Prey Activity1912% weight
Conditions
Level
1.15 m
Water temp
6.0°C
Estimated
Clarity
Clear
Air temp
4°C
Wind
S 3 km/h
Calm
Pressure
1018 hPa
Rain · 48h
2.6 mm
Light rain
Rain · ahead
5.6 mm
Light 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
Fair conditions. Clarity is favourable (85), Prey activity is weakest (19). ⏰ 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 · 1
  1. 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
  • In 2026 many trout waters run to 15 August, but salmon zones, mountain zones, tramos sin muerte, and border stretches can differ
  • Check local coto and tramo rules before fishing.
Directions
Apple MapsGoogle Maps
About this water

The Trubia is a limestone tributary with a spectacular gorge — pale stone pools and crystal-clear water holding wild browns (15–32 cm, with larger residents in deep pools). The limestone character produces outstanding mayfly hatches May–June; olives and terrestrials fish well. Sea trout enter lower reaches May–July. The 4-hour spate response and three-station gauge coverage make it predictable. The middle-reach gorge section is most productive and scenically stunning. Usually uncrowded, but Asturian licence and local tramo rules still apply. A river where geology and fish align.

Under the surface

The Trubia runs from the Cantabrian slate and quartzite country down toward relatively lower elevations, a spate-responsive river with pronounced character. The upper reaches are step-pool through mixed lithology; the descent is steep and response to rainfall immediate. The middle Trubia opens into partly-confined pool-riffle on cobble emerging from slate. The pools are productive and hold traditional fishing respect. The river's character is of a Cantabrian spate system responding fully to mountain rainfall. The wading demands care throughout the upper sections.

Wading: Slick limestone pavement in upper gorge

  • Limestone
  • Partly confined
  • Step pool
  • Pool riffle
Other water nearby · 5
Booking & contacts