Spate · Mixed · Gipuzkoa, País Vasco

Urola

Urola venue image
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A central Gipuzkoa trout river of excellent character, flowing through relatively unspoilt catchment toward the coast.

Marginal · Brown Trout
Klinkhammer · 14-18
Marginallive now
Slow going — pick your moments
Low and clear — careful approach country. Cover and shadow are doing the work today.
80% confidence
What moved it
  • LevelProxyvia Urumea
  • Water temp18.2°C
  • ClarityClear
Today’s fly
Klinkhammer
Klinkhammer14-18
High-confidence seasonal pick
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Urumea
Water temp18.2°C
ClarityClear
Weather17°C
WindNW 14 km/h
Pressure1027 hPa
Rain · recent5.7 mm
Rain · ahead5.7 mm

No gauge on this water — conditions are inferred from Urumea. The trend transfers, the absolute level does not.

Water temperature for brown trout
Warm — slow
18°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 18.2°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.
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
Sea trout runRun
1
2
1
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.
  • Gipuzkoa fishing licence required
  • Treat the Urola as a trout river with some sea-trout influence rather than as a migratory-fish destination defined by old salmon logic.
What's coming
Plan ahead
5-day outlook
Water here around 18°C. Nothing cooler within range — carry a thermometer.
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

A central Gipuzkoa trout river of excellent character, flowing through relatively unspoilt catchment toward the coast. At 59 km, it provides diverse habitat with particular strength in middle and upper sections holding abundant wild browns. Mixed geology ensures good water quality and varied substrate. Spate nature (4-hour response) provides reliable fishing windows for winter browns and spring/summer sea trout. Less developed than salmon-focused neighbours, offering quieter angling with consistent quality. Predominantly wild and undisturbed habitat with good riparian cover. Spring (March–May) excellent for browns; sea trout extend season May onwards. Ideal for those seeking wild river experience without permit complexity.

  • Mixed
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown
What this classification means

WFD ecological status Poor → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody ES017MSPFES111R034020 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · ES017MSPFES111R034020

The full read · show the working · for brown trout · confidence 80%
How the 30 is built — score × weight = contribution
Temperature53 × 28%14.8
Flow15 × 22%3.3
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity11 × 12%1.3
Limiting factor: River is stable — Brown Trout prefers medium flow= 47
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Urumeaproxy
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.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Sea trout1 May → 31 July
  • Troutthird Sunday of March → 31 July

Salmon: Heritage only (2026) — Heritage salmon river. In practical angling terms, salmon are not a target species — focus on trout and sea trout.

Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts