Spate · Mixed · Cantabria, ES

Pisueña

Pisueña venue image
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A central Cantabrian tributary of the Pas, joining the parent river near Sarón.

Poor · Brown Trout
Klinkhammer · 14-18
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
  • Level1.15 mLast reading 5h ago
  • Water temp21.2°C
  • ClarityClear
Today’s fly
Klinkhammer
Klinkhammer14-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
1.15 m
lowspate
Water temp21.2°C
ClarityClear
Weather21°C
WindW 10 km/h
Pressure1018 hPa
Rain · recent0.0 mm
Rain · ahead13.1 mm

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

Water temperature for brown trout
Warm — slow
21°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 21.2°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

Hatch predictions

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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
Trout seasonSeason
1
2
2
2
1
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
Permits & access
Permit required — see local rules.
  • Se requiere licencia de pesca de Cantabria
  • Se aplica el anexo de la cuenca del Pas: verifica las normas de los tramos de Sarón y Villacarriedo y la asignación de cotos antes de pescar.
What's coming
Plan ahead
5-day outlook
Water here around 21°C. Nothing cooler within range — carry a thermometer.
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

A central Cantabrian tributary of the Pas, joining the parent river near Sarón. The Pisueña is often the cleaner and steadier half of the Pas system — narrower, more wooded, mixed limestone-and-sandstone bedrock, with classic pool-riffle-glide structure on the middle reaches around Villacarriedo and Selaya. Wild brown trout dominate; sea trout appear in the lower river within the legal calendar. Two SAIH stations (Puente del Diablo and La Penilla) frame the middle/lower stretches, so spate response is well constrained. Worth knowing for the days when the main Pas is too coloured or too low — the Pisueña often holds a fishable window when the Pas does not.

  • Mixed
The full read · show the working · for brown trout · confidence 80%
How the 20 is built — score × weight = contribution
Temperature12 × 28%3.4
Flow40 × 22%8.8
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity47 × 12%5.6
Limiting factor: Water temperature (21.2°C) is outside Brown Trout's preferred range (10–16°C)= 48
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.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Troutthird Sunday of March → 31 July

Sea trout: Variable seasonal (2026)

Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts