Spate · Mixed · Gipuzkoa, País Vasco

Urola

Urola — Urola
Poor · Brown Trout
Klinkhammer · 14-18
Closed season
Out of season. Plenty of other water available now.
Closed — confidence not applicable today.
What moved it
  • LevelProxyvia Urumea
  • Water temp21.9°C
  • ClarityClear
Today's fly
Klinkhammer
Klinkhammer14-18
High-confidence seasonal pick
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Urumea
Water temp21.9°C
ClarityClear
Weather27°C
WindN 14 km/h
Pressure1018 hPa
Rain · recent0.0 mm
Rain · ahead3.3 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
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 21.9°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 6pm

Hatch predictions

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Sub-surface · on the nymphunder the surface

Hatch predictions

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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 · August 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
Cooler water nearby · 1
Water here around 22°C — probably warm enough to stress Brown Trout . These are likely cooler.
Río Artibai
18 km
~21°C
Salmon · Sea trout
Gallery · 2
  1. Urola — Urola
    Urola
  2. Terrain map of the venue
    Terrain map
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 0 is built — score × weight = contribution
Temperature7 × 28%2.0
Flow15 × 22%3.3
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity50 × 12%6.0
Limiting factor: Water temperature (21.9°C) is outside Brown Trout's preferred range (10–16°C)= 43
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Urumeaproxy
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.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Sea trout 1 May → 31 July
  • Trout third Sunday of March → 31 July

Sea trout: Variable seasonal (2026)

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