Freestone · Granite · Norte / Minho, PT

Minho (Upper System)

The upper Minho in northern Portugal flows with scale—big water with long runs and broad holding areas where wild brown trout rest.

Rio Minho - Portugal

Portuguese_eyes - CC BY-SA

Forecast · Today

Closed season

Out of season. Try elsewhere.

45% projected

Notify when prime

Today's fly

Klinkhåmer

Rules at a glance

Public water
Licence required

Forecast

Conditions on the water · Today

Live gauge

Trends shown where the gauge supports them

Level

Rising

1.30 m

Lifting fast

Water temp

11.7°C

coldwarm

Clarity

Very coloured

Colouring up

Weather

13°C

Overcast

Wind

N 17 km/h

calmblown out

Pressure

1019 hPa

lowhigh

Rain · recent

1.4 mm

dryspate risk

Rain · ahead

0.0 mm

dryspate risk

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout

Ideal

12°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.

Likely species

Mayflies

Angler's CurseMost likelyLower confidenceNearest relative
#20–22 · Spinner
Go tiny: 20-22 spent spinner, single fly, long tippet.

Caddisflies

CapererMost likelyLower confidence
#10–12 · Adult
Big autumn sedge; fish dry at last light.
Green SedgeAlso possibleLower confidenceNearest relative
#10–12–14–16 · Nymph
Free-living green caddis larva; fast stony riffles.
Net-spinning caddisAlso possibleLower confidenceNearest relative
#12–14–16 · Pupa
Widespread riffle net-spinner; evening emergence.

Damselflies & dragonflies

DamselfliesMost likelyNearest relative
#10–12 · Nymph
Slow-retrieve a damsel nymph along the weed edges.

Gammarids

Freshwater shrimpMost likelyLower confidenceNearest relative
#10–14 · Adult
No hatch? Dead-drift a shrimp deep — the year-round standby.

Hatch timeline · todayPeak at 12pm

12pm(now) — Autumn Olive

Stage: On emergersApproach: Emerger or dryActivity: 33%

Also:Autumn Needle Fly21%

Peak emergence windowWeather boost5 food groups active

Peak activity at 12pm — Autumn Olive (Autumn Olive, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

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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 · September highlighted

Trout season

Large Dark Olive

Blue Winged Olive

Autumn Olive

Brown Sedge

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today

Brown Trout fly box

A wild brown trout pack for northern and mountain Portugal. River-first, compact, and practical, with nymphs leading and dry flies taking over in the stronger windows.

Permits & access

Permit required — see local rules.

Licença de Pesca Desportiva (Portuguese fishing license)
Regional variation; consult local authorities.

What's coming

Plan ahead

5-day outlook

Other water nearby · 5

Gallery · 2

Rio Minho - Portugal
Terrain map

About this water

The upper Minho in northern Portugal flows with scale—big water with long runs and broad holding areas where wild brown trout rest. Cover the likely water methodically with nymphs and seasonal dry flies. Spring into early summer is the prime window before heat tightens the fish.

Granite

Water quality (WFD)

Ecology: Moderate
Chemical: Unknown

What this classification means

WFD ecological status Good → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody PT01MIN0002 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · PT01MIN0002

The full read · show the working · for Brown Trout · confidence 90%

How the 0 is built — score × weight = contribution

Temperature100 × 28%28.0

Flow95 × 22%20.9

Clarity95 × 18%17.1

Feeding Time60 × 13%7.8

Pressure80 × 7%5.6

Insect activity69 × 12%8.3

Conditions total= 88

Can you trust it?

Water temperatureair-to-water estimateestimated

Level / flowon-river gaugeobserved

Prey activitysurvey-backed invertebrate datasurvey

What would change the calculation

The dawn and dusk windows score higher than the midday lull.

Directions

Apple Maps Google Maps

Seasons & zones

Trout 1 March → 31 July

Related guides

Euro Nymphingsubsurface methods

Booking & contacts

Permits & access

ICNF — Fishing Licences
National recreational fishing licence. Available online, at offices, or via Multibanco

Freestone · Granite · Norte / Minho, PT

Minho (Upper System)

Contributor photo

Rio Minho - Portugal

Portuguese_eyes - CC BY-SA

The upper Minho in northern Portugal flows with scale—big water with long runs and broad holding areas where wild brown trout rest.

Today · Closed season

Klinkhåmer

Forecast · Today

Closed season

Out of season. Try elsewhere.

45% projected

Notify when prime

Today's fly

Klinkhåmer

Conditions on the water · Today

Live gauge

Level

Rising

1.30 m

Lifting fast

Water temp11.7°C

ClarityVery coloured

Weather13°C

WindN 17 km/h

Pressure1019 hPa

Rain · recent1.4 mm

Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout

Ideal

12°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.

Likely species

Mayflies

Angler's CurseMost likelyLower confidenceNearest relative
#20–22 · Spinner
Go tiny: 20-22 spent spinner, single fly, long tippet.

Caddisflies

CapererMost likelyLower confidence
#10–12 · Adult
Big autumn sedge; fish dry at last light.
Green SedgeAlso possibleLower confidenceNearest relative
#10–12–14–16 · Nymph
Free-living green caddis larva; fast stony riffles.
Net-spinning caddisAlso possibleLower confidenceNearest relative
#12–14–16 · Pupa
Widespread riffle net-spinner; evening emergence.

Damselflies & dragonflies

DamselfliesMost likelyNearest relative
#10–12 · Nymph
Slow-retrieve a damsel nymph along the weed edges.

Gammarids

Freshwater shrimpMost likelyLower confidenceNearest relative
#10–14 · Adult
No hatch? Dead-drift a shrimp deep — the year-round standby.

Hatch timeline · todayPeak at 12pm

12pm(now) — Autumn Olive

Stage: On emergersApproach: Emerger or dryActivity: 33%

Also:Autumn Needle Fly21%

Peak emergence windowWeather boost5 food groups active

Peak activity at 12pm — Autumn Olive (Autumn Olive, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

Start free trial

14-day free trial. Cancel anytime.

Evidence

Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year

0–3 scale · September highlighted

Trout season

Large Dark Olive

Blue Winged Olive

Autumn Olive

Brown Sedge

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today

Brown Trout fly box

A wild brown trout pack for northern and mountain Portugal. River-first, compact, and practical, with nymphs leading and dry flies taking over in the stronger windows.