Rules at a glance
- Free fishing
- Fly only
Water temperature for Brown Trout
Cool — slow10°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Veneto trout season, 7 March to 28 September — but remember Bacino 5 closes fishing on Tuesdays and Fridays regardless. Afternoon hatches build through spring; dawn and dusk once the Agordino valley warms up in summer.
Where
Pocket water and boulder-strewn runs below the Lago di Alleghe dam, opening into longer pools as the valley widens toward Agordo and on down to the Piave confluence.
Method
Upstream nymph through the broken pocket water; dry fly to risers where the current settles into glides. Single barbless hook, and remember the season cap of 100 salmonids across the whole basin.
Kit
9 to 10 ft #4 for medium freestone water with Dolomite clarity. Floating line, 12 ft leader to 4 to 5 lb fluoro. Studded boots for the gorge cobble.
Why this works
Good — water clarity is right today, though time of day could be better.
Likely species
Mayflies
Mayflies- Anglers curse mayfliesMost likelyLower confidenceNearest relative#20–22 · SpinnerGo tiny: 20-22 spent spinner, single fly, long tippet.
- Large dark oliveAlso possible#14–16 · EmergerDead-drift the emerger — it's sitting in the film.
- Turkey BrownAlso possibleLower confidence#14–16 · DunSmall spring dun on slower glides and margins.
- Ephemera vulgata (lake mayfly)Also possibleLower confidenceNearest relative#8–10–12 · NymphLarge lake/slow-river mayfly; burrows soft sediment.
Caddisflies
Caddisflies- Saddle-case CaddisMost likelyLower confidenceNearest relative#16–18 · AdultTiny blackish caddis; fast riffles, early summer.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
- Stone-case caddisAlso possibleLower confidenceNearest relative#14–16–18 · NymphTiny stone-cased larva; clean gravel riffles.
- Net-spinning caddis (S. Europe)Also possibleLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
Stoneflies
Stoneflies- NeedleflyMost likelyLower confidenceNearest relative#16–18 · AdultSmall slender stonefly; clean, cold headwater riffles.
- Little Brown StoneAlso possibleLower confidence#16–18 · AdultSmall dark stone nymph or adult in early spring.
Hatch timeline · todayPeak at 10h
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
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Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
J
F
M
A
M
J
J
A
S
O
N
D
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
18-22 · Pattern
Upstream dry, in the film
Permits & access
Permit required — see local rules.
- Veneto Regolamento Regionale 1/2023 art
- 29: trout and marble trout open 7 March-28 September 2026 (min
- 22cm fario)
- Marble trout retention is prohibited year-round under art
- 11 comma 2, regardless of season
- Bacino di pesca 5 (Agordino) additionally closes Tuesdays and Fridays, caps the season at 100 salmonids per angler, bans multi-hook lures and dead-fish bait (except at Lago di Cavia/Coldai), and permits one rod only across the whole basin
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Terrain map
The full read · show the working · for Brown Trout · confidence 75%
How the 79 is built — score × weight = contribution
Temperature93 × 28%26.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time50 × 13%6.5
Pressure80 × 7%5.6
Insect activity52 × 12%6.2
Conditions total= 79
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
Seasons & zones
- Trout 2026-03-07 → 2026-09-28
- Marble trout 2026-03-07 → 2026-09-28
Related guides
Booking & contacts
Cordevole
Water temperature for Brown Trout
Cool — slow10°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Veneto trout season, 7 March to 28 September — but remember Bacino 5 closes fishing on Tuesdays and Fridays regardless. Afternoon hatches build through spring; dawn and dusk once the Agordino valley warms up in summer.
Where
Pocket water and boulder-strewn runs below the Lago di Alleghe dam, opening into longer pools as the valley widens toward Agordo and on down to the Piave confluence.
Method
Upstream nymph through the broken pocket water; dry fly to risers where the current settles into glides. Single barbless hook, and remember the season cap of 100 salmonids across the whole basin.
Kit
9 to 10 ft #4 for medium freestone water with Dolomite clarity. Floating line, 12 ft leader to 4 to 5 lb fluoro. Studded boots for the gorge cobble.
Why this works
Good — water clarity is right today, though time of day could be better.
Likely species
Mayflies
- Anglers curse mayfliesMost likelyLower confidenceNearest relative#20–22 · SpinnerGo tiny: 20-22 spent spinner, single fly, long tippet.
- Large dark oliveAlso possible#14–16 · EmergerDead-drift the emerger — it's sitting in the film.
- Turkey BrownAlso possibleLower confidence#14–16 · DunSmall spring dun on slower glides and margins.
- Ephemera vulgata (lake mayfly)Also possibleLower confidenceNearest relative#8–10–12 · NymphLarge lake/slow-river mayfly; burrows soft sediment.
Caddisflies
- Saddle-case CaddisMost likelyLower confidenceNearest relative#16–18 · AdultTiny blackish caddis; fast riffles, early summer.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
- Stone-case caddisAlso possibleLower confidenceNearest relative#14–16–18 · NymphTiny stone-cased larva; clean gravel riffles.
- Net-spinning caddis (S. Europe)Also possibleLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
Stoneflies
- NeedleflyMost likelyLower confidenceNearest relative#16–18 · AdultSmall slender stonefly; clean, cold headwater riffles.
- Little Brown StoneAlso possibleLower confidence#16–18 · AdultSmall dark stone nymph or adult in early spring.
Hatch timeline · todayPeak at 10h
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Supporters see what else is on the menu.
Start free trial14-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
J
F
M
A
M
J
J
A
S
O
N
D
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Fly box · Brown Trout
18-22 · Pattern
Upstream dry, in the film
Permits & access
Permit required — see local rules.
- Veneto Regolamento Regionale 1/2023 art
- 29: trout and marble trout open 7 March-28 September 2026 (min
- 22cm fario)
- Marble trout retention is prohibited year-round under art
- 11 comma 2, regardless of season
- Bacino di pesca 5 (Agordino) additionally closes Tuesdays and Fridays, caps the season at 100 salmonids per angler, bans multi-hook lures and dead-fish bait (except at Lago di Cavia/Coldai), and permits one rod only across the whole basin
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Terrain map
The full read · show the working · for Brown Trout · confidence 75%
How the 79 is built — score × weight = contribution
Temperature93 × 28%26.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time50 × 13%6.5
Pressure80 × 7%5.6
Insect activity52 × 12%6.2
Conditions total= 79
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
Seasons & zones
- Trout 2026-03-07 → 2026-09-28
- Marble trout 2026-03-07 → 2026-09-28
Related guides
Booking & contacts