Spate · Mixed · Asturias, Spain

Río Nonaya

Río Nonaya terrain map
Terrain map

The Nonaya meets the Narcea near Cornellana, smaller and quieter than the famous river it joins.

Fair · Brown Trout
Ignita CDC · 16-20
Fairlive now
A side-water session, not the main event
River steady at a fishable height. A patient day. Fish the cover and stay with it.
75% confidence
What moved it
  • Level0.52 m
  • Water temp17.2°C
  • ClarityClear
Today’s fly
IC
Ignita CDC16-20
Upstream dry, on top
Conditions on the water
Live gauge
Level
Steady
0.52 m
lowspate
Water temp17.2°C
ClarityClear
Weather16°C
WindNE 8 km/h
Pressure1028 hPa
Rain · recent0.1 mm
Rain · ahead1.3 mm

Live readings — water temperature is an estimate where the gauge does not record it.

Water temperature for brown trout
Warm — slow
17°C est.ideal 1016°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 — water clarity is working for you, but insect activity is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · July 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.

Ranked for today
Brown Trout fly box
Beats · 1
Cornellana · 1.7 kmC&R trout
C&R trout stretch — Curva del Corro del Charco to Río Narcea.
Beat detail
Daily permit required, all fish returned
Upstream: Curva del Corro del Charco
Downstream: Río Narcea
Cornellana beat map
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
  • Asturian fishing licence required
  • Proximity to Narcea salmon cotos — check beat boundaries.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
About this water

The Nonaya meets the Narcea near Cornellana, smaller and quieter than the famous river it joins. Fishing it feels like stepping off a busy road into a field — the same countryside, a different pace. Wild browns in clear water, the kind of tributary that the Narcea angler passes on the way to their beat and occasionally wishes they'd stopped at instead.

Under the surface

The Nonaya is a smaller tributary in the Nalón system, slate-fed and spate-responsive. The upper reaches show pure slate character in step-pool confines; the descent is rapid. The water remains amber-toned throughout. The Nonaya maintains its steep spate character throughout its reach. The available pools are secondary to the river's responsive descent. The wading demands respect throughout.

Wading: Wet quartzite slabs in gorge reaches

  • Mixed
  • Step pool
  • Plane bed
The full read · show the working · for brown trout · confidence 75%
How the 61 is built — score × weight = contribution
Temperature72 × 28%20.2
Flow40 × 22%8.8
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity31 × 12%3.7
Conditions total= 61
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Related guides
Booking & contacts