Spate · Limestone · Castilla y León, ES

Río Cardaño

Río Cardaño — Río Cardaño

A Carrión headwater draining the Fuentes Carrionas above Cardaño de Arriba.

Poor · Brown Trout
Pheasant Tail Nymph · 14-18
Closed season
Out of season. Try elsewhere.
Closed — confidence not applicable today.
What moved it
  • Level0.04 mLast reading 30 min ago
  • Water temp4.0°C
  • ClarityClear
Today's fly
Pheasant Tail Nymph
Pheasant Tail Nymph14-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.04 m
Last reading 30 min ago
Water temp4.0°C
ClarityClear
Weather8°C
WindNE 13 km/h
Pressure1025 hPa
Rain · recent0.7 mm
Rain · ahead0.9 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
Cool — slow
4°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.
Likely species
Gammarids
Hatch timeline · todayPeak at 11am

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour as a supporter.

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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
Trout seasonSeason
1
2
2
2
1
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2
Olive UprightHatch
2
3
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Castilla y León licence required
  • Inside Fuentes Carrionas natural park — verify protected-area rules before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Río Yuso
7.0 km
0
Brown trout
Río Orza
17 km
0
Brown trout
Río Remolina
22 km
0
Brown trout
Embalse de Camporredondo
11 km
Brown trout
Embalse de Riaño
14 km
Brown trout
Gallery · 2
  1. Río Cardaño — Río Cardaño
    Río Cardaño
  2. Terrain map of the venue
    Terrain map
About this water

A Carrión headwater draining the Fuentes Carrionas above Cardaño de Arriba. Alpine limestone trout water — short, steep, pocket-pool structure through the high mountain valley. Wild brown trout only. Best fished from June through July after snowmelt has cleared; the upper meadows above 1300 m hold fishable conditions into early August.

  • Limestone
The full read · show the working · for Brown Trout · confidence 55%
How the 0 is built — score × weight = contribution
Temperature13 × 28%3.6
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity23 × 12%2.8
Limiting factor: Water temperature (4°C) is outside Brown Trout's preferred range (10–16°C)= 57
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
  • Trout Last Sunday of March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts