Spate · Slate · Asturias, Spain

Río Navia

The Río Navia river curving through a steep, forested green valley with a small bridge crossing it, northwest Spain.
Fair · Brown Trout
Small Chironomid · 22-24
Fairlive now
A side-water session, not the main event
River high but settled. Tributary pocket water is the better play today.
65% confidence
What moved it
  • Level2.05 mLast reading 4h ago
  • Water temp7.2°C
  • ClarityColouredClearing
Today's fly
SC
Small Chironomid22-24
Upstream dry, on top
Conditions on the water
Live gauge
Level
Falling
2.05 m
Last reading 4h ago
Water temp7.2°C
ClarityColoured
Weather13°C
WindS 4 km/h
Pressure1026 hPa
Rain · recent0.2 mm
Rain · ahead0.0 mm

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

Water temperature for Brown Trout
Cool — slow
7°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Good — river flow is working for you, but insect activity is the limiting factor today.
Likely species
Mayflies
Stoneflies
Gammarids
Hatch timeline · todayPeak at 11:00

Hatch predictions

Today's headline hatch shown — see all 5 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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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 · October 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
Fly box · Brown Trout
SC
Small ChironomidTop
22-24 · Pattern
Upstream dry, on top
Beats · 4
Oscos · 1.6 kmTrout permit
Trout permit stretch — Puente sobre el río Agüeira en Barreiras to 250 m aguas arriba del puente sobre el río Agüeira, en el área recreativa de Ferreira.
Beat detail
Daily permit required, keep within bag limits
Upstream: Puente sobre el río Agüeira en Barreiras
Downstream: 250 m aguas arriba del puente sobre el río Agüeira, en el área recreativa de Ferreira
Oscos beat map
Pesoz · 2.7 kmTrout permit
Trout permit stretch — 100m aguas arriba del puente de Pesoz en el río Agüeira. Puente del Molino en río Ahío to Puente de Argul en el río Agüeira. Confluencia con el río Agüeira en el río Ahío.
Beat detail
Daily permit required, keep within bag limits
Upstream: 100m aguas arriba del puente de Pesoz en el río Agüeira. Puente del Molino en río Ahío
Downstream: Puente de Argul en el río Agüeira. Confluencia con el río Agüeira en el río Ahío
Pesoz beat map
Arbón · 1.5 kmTrout permit
Trout permit stretch — 50 m aguas abajo de la salida de aguas de las turbinas de la presa de Arbón to 50 m aguas arriba de la pasarela de Santianes.
Beat detail
Daily permit required, keep within bag limits
Upstream: 50 m aguas abajo de la salida de aguas de las turbinas de la presa de Arbón
Downstream: 50 m aguas arriba de la pasarela de Santianes
Arbón beat map
Santianes · 1.5 kmTrout permit
Trout permit stretch — 50 m aguas arriba de la pasarela de Santianes to Cola del pozo Pelangón.
Beat detail
Daily permit required, keep within bag limits
Upstream: 50 m aguas arriba de la pasarela de Santianes
Downstream: Cola del pozo Pelangón
Santianes beat map
Beat map
Illustration · Studio Daisy
Beat map — illustrated schematic
Navia trout country with reservoirs and wooded valleys. Salmon-zone rules apply on a short lower stretch.
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
  • Se requiere licencia de pesca asturiana
  • Consulta las normas del coto y del tramo local antes de pescar
  • No te fíes de suposiciones genéricas sobre ríos de salmón aquí.
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Río Porcía
18 km
84
Brown trout · Sea trout
Río Navelgas
16 km
76
Brown trout
Río Negro
17 km
71
Brown trout · Sea trout
Río Eo
26 km
64
Brown trout · Sea trout · Salmon
El Arenero (Coto Intensivo, Tineo)
25 km
Brown trout · Rainbow trout
Gallery · 2
  1. The Río Navia river curving through a steep, forested green valley with a small bridge crossing it, northwest Spain.
    Vistas del Río Navia
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown

WFD classification · ES018MSPFES219MAR002050

The full read · show the working · for Brown Trout · confidence 65%
How the 60 is built — score × weight = contribution
Temperature52 × 28%14.6
Flow80 × 22%17.6
Clarity40 × 18%7.2
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity35 × 12%4.2
Conditions total= 60
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
Directions
Apple MapsGoogle Maps
Seasons & zones

Sea trout: Variable seasonal (2026) — Navia — western Asturian river, partially regulated by dams in its middle section but with free reaches in the lower river where reo and salmon run. Sea trout from June on spate water. Condition-sensitive; night fishing restricted per regional schedule.

Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts