Spate · Limestone · Cantabria, ES

Nansa

Nansa venue image
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A serious western Cantabrian salmonid basin whose salmon status is now more historical and regulatory than practically useful for most anglers.

Marginal · Brown Trout
Klinkhammer · 14-18
Marginallive now
Slow going — pick your moments
River dropping into shape after a lift. A short window. Take your time.
50% confidence
What moved it
  • Level0.20 mDropping after lift
  • Water temp14.1°C
  • ClarityClear
Today’s fly
Klinkhammer
Klinkhammer14-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.20 m
lowspate
Water temp14.1°C
ClarityClear
Weather17°C
WindN 6 km/h
Pressure1026 hPa
Rain · recent4.5 mm
Rain · ahead5.4 mm

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

Water temperature for brown trout
Ideal
14°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
Poor — water temperature is working for you, but insect activity is the limiting factor today.
Hatch timeline · todayQuiet day

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.
  • Cantabrian fishing licence required
  • The Nansa's annex-driven rules and protected-zone structure matter more than old salmon prestige, so check the exact stretch before travel.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Saja
14 km
30
Brown trout · Sea trout
Saja
14 km
Brown trout · Sea trout
Río Deva
15 km
Brown trout · Salmon · Sea trout
Bullón
16 km
Brown trout
Río Escudo
16 km
Brown trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

A serious western Cantabrian salmonid basin whose salmon status is now more historical and regulatory than practically useful for most anglers. Rugged limestone character with 5-hour spate response. Rocky tumbling sections alternate with deeper pools. Management and conservation rules are central to the fishing story. Wild brown trout in upper sections and sea trout later in the season are the real practical draw.

  • Limestone
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown

WFD classification · ES018MSPFES118MAR000480

The full read · show the working · for brown trout · confidence 50%
How the 30 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow15 × 22%3.3
Clarity95 × 18%17.1
Feeding Time75 × 13%9.8
Pressure80 × 7%5.6
Insect activity13 × 12%1.6
Limiting factor: River is stable — Brown Trout prefers medium flow= 65
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
A drop and clear would lift the flow and clarity scores.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Troutthird Sunday of March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts