Spate · Mixed · Asturias, Spain

Río Nora

Río Nora — AS-Meandros del río Nora 05
Poor · Brown Trout
Ignita CDC · 16-20
Poorlive now
Not the day for it
River temperature is the limiting factor today, not the flow. This is not the day to push it. Check the thermal advice above before you head out.
80% confidence
What moved it
  • Level0.08 mDropping after lift
  • Water temp21.5°C
  • ClarityClear
Today's fly
IC
Ignita CDC16-20
Upstream dry, on top
Conditions on the water
Live gauge
Level
Steady
0.08 m
lowspate
Water temp21.5°C
ClarityClear
Weather23°C
WindN 11 km/h
Pressure1020 hPa
Rain · recent0.0 mm
Rain · ahead5.1 mm

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

Water temperature for Brown Trout
Warm — slow
22°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 21.5°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · August 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.
  • Se requiere licencia de pesca asturiana
  • En 2026 muchas aguas trucheras cierran el 15 de agosto, pero las zonas de salmón, las zonas de alta montaña, los tramos sin muerte y los tramos fronterizos pueden tener fechas distintas
  • Consulta las normas del coto y del tramo antes de pescar.
What's coming
Plan ahead
5-day outlook
Water here around 22°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
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 18 is built — score × weight = contribution
Temperature10 × 28%2.8
Flow15 × 22%3.3
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity50 × 12%6.0
Limiting factor: Water temperature (21.5°C) is outside Brown Trout's preferred range (10–16°C)= 42
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
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
Booking & contacts