Freestone · Granite · Catalonia

Tordera

The Tordera drains the Montseny massif and flows to the coast.

Josep Ferrer

Likely too hot — check on arrivalThe water is probably above the brown trout safety line — carry a thermometer.

Water estimated at about 22°C from air temperature — there is no water-temp gauge here, so treat the figure as a guide. If the estimate is right, this is above 22°C and you should not be targeting brown trout. But shade, cold tributaries, and recent rain can hold a river two or three degrees below the air-driven figure. Carry a thermometer. Check it on arrival. If the river is genuinely at 22°C or above, fish another species or come back another day. If it is cooler than the estimate: dawn and dusk only, barbless hooks, land it fast, wet hands, no air shots. Stop the moment a fish is slow to recover.

DepthShaded riffles, deep pools, spring inflows, cold tributary mouths. That is where the fish will be.
TimingDawn and dusk only. Nothing in the middle of the day.

Poorlive now

Not the day for it

Low and clear — careful approach country. A morning for the obvious fish only.

90% confidence

Notify when prime

What moved it

Flow0.4 m³/s
Water temp22.1°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

Flow

Steady

0.4 m³/s

Water temp

22.1°C

coldwarm

Clarity

Clear

Weather

23°C

Light cloud

Wind

N 4 km/h

calmblown out

Pressure

1019 hPa

lowhigh

Rain · recent

0.8 mm

dryspate risk

Rain · ahead

1.6 mm

dryspate risk

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

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 22.1°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.

Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 4 active hatches hour by hour with Pro.

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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

Large Dark Olive

Blue Winged Olive

Autumn Olive

Grannom

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.

Catalan fishing licence required
Controlled trout waters may require a ZPC permit, and legal dates differ between low-mountain, high-mountain, with-kill, and no-kill sectors, so check the current Generalitat rules for the exact zone.

What's coming

Plan ahead

5-day outlook

Cooler water nearby · 2

Probably above the brown trout safety line — these are likely cooler, but carry a thermometer.

Gallery · 1

Terrain map

About this water

The Tordera drains the Montseny massif and flows to the coast. Granite geology throughout creates typical freestone character. The southernmost Catalan salmonid zone, with marginal trout habitat reflecting lower elevation and Mediterranean influence.

Granite

Water quality (WFD)

Ecology: Moderate
Chemical: Unknown

WFD classification · ES100MSPF1400060

The full read · show the working · for brown trout · confidence 90%

How the 12 is built — score × weight = contribution

Temperature6 × 28%1.7

Flow80 × 22%17.6

Clarity95 × 18%17.1

Feeding Time40 × 13%5.2

Pressure80 × 7%5.6

Insect activity52 × 12%6.2

Limiting factor: Water temperature (22.1°C) is outside Brown Trout's preferred range (10–16°C)= 53

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.

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

Directions

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Seasons & zones

Troutdepends on Catalan zone class → depends on Catalan zone class

Related guides

Booking & contacts