Spate · Mixed · Gipuzkoa, País Vasco

Oria

A central Gipuzkoa trout-and-sea-trout river of solid reputation, flowing through pastoral landscapes with mixed geology and a 6-hour spate response.

U-Hotel Boutique Oria

Warm — handle with careBrown Trout are stressed by warm water — handle every fish carefully.

Water estimated at about 18°C from air temperature — there is no water-temp gauge here, so treat the figure as a guide. Above 18°C, the risk of killing a released fish climbs. Fish dawn or dusk only — the water can be two or three degrees cooler at first light. Barbless hooks. Land it fast — under thirty seconds. Wet hands. No air shots. If a fish swims off slowly or rolls, stop fishing for the day.

DepthShaded riffles, deep pools, spring inflows, cold tributary mouths. Work them and move on.
TimingDawn and dusk only. Avoid the middle of the day — the water peaks then and the fish are most stressed.

Marginallive now

Slow going — pick your moments

Low and clear — careful approach country. Cover and shadow are doing the work today.

80% confidence

Notify when prime

What moved it

Level0.50 mLast reading 19h ago
Water temp18.1°C
ClarityClear

Today’s fly

Klinkhammer14-18

High-confidence seasonal pick

Live now

Conditions on the water

Live gauge

Trends shown where the gauge supports them

Level

Falling

0.50 m

lowspate

Water temp

18.1°C

coldwarm

Clarity

Clear

Weather

20°C

Broken

Wind

N 6 km/h

calmblown out

Pressure

1025 hPa

lowhigh

Rain · recent

2.2 mm

dryspate risk

Rain · ahead

5.7 mm

dryspate risk

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

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 18.1°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

Trout season

March Brown

Grannom

Large Stonefly

Yellow Sally

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
Check the exact named stretch and any coto-style allocation rules before travel; do not import Bidasoa border logic into the Oria.

What's coming

Plan ahead

5-day outlook

Water here around 18°C. Nothing cooler within range — carry a thermometer.

Gallery · 1

Terrain map

About this water

A central Gipuzkoa trout-and-sea-trout river of solid reputation, flowing through pastoral landscapes with mixed geology and a 6-hour spate response. The middle sections hold the most productive pools and offer quieter fishing than the better-known Bidasoa or Urumea. In practical terms this is a trout river with some migratory heritage, not a modern salmon-destination row.

Mixed

Water quality (WFD)

Ecology: Moderate
Chemical: Unknown

What this classification means

WFD ecological status Bad → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody ES017MSPFES028MAR002662 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · ES017MSPFES028MAR002662

The full read · show the working · for brown trout · confidence 80%

How the 30 is built — score × weight = contribution

Temperature54 × 28%15.1

Flow15 × 22%3.3

Clarity95 × 18%17.1

Feeding Time80 × 13%10.4

Pressure80 × 7%5.6

Insect activity50 × 12%6.0

Limiting factor: River is falling — Brown Trout prefers medium flow= 58

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.

A drop and clear would lift the flow and clarity scores.

Directions

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Seasons & zones

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

Booking & contacts