Spate · Mixed · Asturias, Spain

Río Nora

Río Nora — AS-Meandros del río Nora 05
Contributor photo

AS-Meandros del río Nora 05

Adolfobrigido (https://commons.wikimedia.org/wiki/User:Adolfobrigido) - CC BY-SA

The Nora is a substantial lowland tributary with character that varies from urban compromise behind IKEA to genuine wild-trout water.

Marginal · Brown Trout
Ignita CDC · 16-20
Marginallive now
Slow going — pick your moments
River temperature is the limiting factor today, not the flow. Fish dawn or dusk if you go at all, and handle everything with extra care.
80% confidence
What moved it
  • Level0.15 mLast reading 3h ago
  • Water temp18.8°C
  • ClarityClear
Today’s fly
IC
Ignita CDC16-20
Upstream dry, on top
Conditions on the water
Live gauge
Level
Steady
0.15 m
lowspate
Water temp18.8°C
ClarityClear
Weather18°C
WindW 6 km/h
Pressure1019 hPa
Rain · recent0.0 mm
Rain · ahead44.2 mm

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

Water temperature for brown trout
Warm — slow
19°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
⚠️ Water at 18.8°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — water clarity is in the right range.
Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

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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
Los Alfilorios · 5.0 kmTrout permit
Trout permit stretch — En toda su superficie, salvo los primeros 50 m desde la presa to null.
Beat detail
Daily permit required, keep within bag limits
Upstream: En toda su superficie, salvo los primeros 50 m desde la presa
Los Alfilorios beat map
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.
What's coming
Plan ahead
5-day outlook
Water here around 19°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. Río Nora — AS-Meandros del río Nora 05
    AS-Meandros del río Nora 05
  2. Terrain map of the venue
    Terrain map
About this water

The Nora is a substantial lowland tributary with character that varies from urban compromise behind IKEA to genuine wild-trout water. Fish the upper reaches: clear mountain water with wild browns (15–30 cm, larger in deep pools). The 5-hour spate response provides predictability. Lower sections suffer from development; focus upstream. Dry-fly and nymphing productive throughout season. Local knowledge from Oviedo essential for finding productive access. Dual gauge coverage helpful. A river where the location matters more than the method.

Under the surface

The Nora arrives into the Nalón network from the east, a slate-and quartzite river bringing Cantabrian Mountain character. The upper reaches are step-pool through mixed slate and quartzite; the descent is moderate and the response to rainfall pronounced but not extreme. The middle Nora allows pool-riffle sequences to develop on cobble; these pools are productive and hold fish. The river maintains its spate-responsive character, amber-colored with slate fines, throughout. The wading demands attention in the upper step-pool sections; the middle reaches offer more approachable footing.

Wading: Soft silt at glide margins

  • Mixed
  • Pool riffle
  • Run glide
Water quality (WFD)
  • Ecology: Poor
  • Chemical: Unknown
What this classification means

WFD ecological status Moderate → Poor corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody ES018MSPFES171MAR001360 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · ES018MSPFES171MAR001360

The full read · show the working · for brown trout · confidence 80%
How the 30 is built — score × weight = contribution
Temperature42 × 28%11.8
Flow15 × 22%3.3
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity18 × 12%2.2
Limiting factor: River is stable — Brown Trout prefers medium flow= 45
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
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