Water temperature for Brown Trout
Ideal10°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Fishable through the reserve's long season, last Sunday of February to last Sunday of November — and more consistently than most Tuscan trout water, because the dam release keeps summer temperatures down when free-flowing streams are struggling. Best sport still clusters around the hatch, late morning into the afternoon.
Where
Zone A, from the powerhouse below Bilancino down to the SP129 viaduct, fishes deep glides and runs typical of a regulated tailwater; Zone B below that, fly-only down toward Sagginale and the Muccione confluence, is more varied riffle-and-pool water.
Method
Nymph or dry-dropper covers the tailwater glides near the dam; switch to dries over risers in the softer water lower down. Barbless hooks and immediate release are compulsory throughout.
Kit
9 ft #4 rod, floating line, 9-12 ft leader to 5X. Weighted nymphs for the deeper glides near the dam; a lighter dry-fly setup for the pockets and riffles further down toward Sagginale.
Why this works
Excellent — conditions well-balanced, with water temperature particularly in your favour.
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 8 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-day free trial. Cancel anytime.
Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Summer River MidgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Brown Trout fly box
12-16 · Pattern
Upstream dry, on top
12-16 · Gammarus Scud
Dead-drift, sub-surface
6-10 · Pattern
Swing, sub-surface
Permits & access
Permit required — see local rules.
- Regional Tuscany fishing licence required, plus the ZRS Tail Water Sieve day permit (€12) or annual pass (€120)
- Barbless or crushed-barb hooks throughout, immediate release mandatory in both zones — this is a catch-and-release fishery by design, not just by rule.
What's coming
Plan ahead
5-day outlook
Other water nearby · 2
The full read · show the working · for Brown Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity65 × 12%7.8
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 2026-02-22 → 2026-11-29
Related guides
Booking & contacts
Sieve
Water temperature for Brown Trout
Ideal10°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Fishable through the reserve's long season, last Sunday of February to last Sunday of November — and more consistently than most Tuscan trout water, because the dam release keeps summer temperatures down when free-flowing streams are struggling. Best sport still clusters around the hatch, late morning into the afternoon.
Where
Zone A, from the powerhouse below Bilancino down to the SP129 viaduct, fishes deep glides and runs typical of a regulated tailwater; Zone B below that, fly-only down toward Sagginale and the Muccione confluence, is more varied riffle-and-pool water.
Method
Nymph or dry-dropper covers the tailwater glides near the dam; switch to dries over risers in the softer water lower down. Barbless hooks and immediate release are compulsory throughout.
Kit
9 ft #4 rod, floating line, 9-12 ft leader to 5X. Weighted nymphs for the deeper glides near the dam; a lighter dry-fly setup for the pockets and riffles further down toward Sagginale.
Why this works
Excellent — conditions well-balanced, with water temperature particularly in your favour.
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 8 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-day free trial. Cancel anytime.
Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Summer River MidgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Brown Trout fly box
12-16 · Pattern
Upstream dry, on top
12-16 · Gammarus Scud
Dead-drift, sub-surface
6-10 · Pattern
Swing, sub-surface
Permits & access
Permit required — see local rules.
- Regional Tuscany fishing licence required, plus the ZRS Tail Water Sieve day permit (€12) or annual pass (€120)
- Barbless or crushed-barb hooks throughout, immediate release mandatory in both zones — this is a catch-and-release fishery by design, not just by rule.
What's coming
Plan ahead
5-day outlook
Other water nearby · 2
The full read · show the working · for Brown Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity65 × 12%7.8
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 2026-02-22 → 2026-11-29
Related guides
Booking & contacts