Freestone · Sandstone Shale · Tuscany / Casentino (Pratovecchio Stia, Province of Arezzo)

Arno (Casentino)

Cascatelle del fiume Arno
Good · Brown Trout
Hare's Ear Nymph · 12-16
Goodlive now
A proper day on the water
River high but settled. Match the colour and fish the seams.
90% confidence
What moved it
  • Level1.27 mLast reading 2h ago
  • Water temp16.9°C
  • ClarityClear
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph12-16
Upstream, sub-surface
Conditions on the water
Live gauge
Level
Steady
1.27 m
Last reading 2h ago
Water temp16.9°C
ClarityClear
Weather22°C
WindNE 14 km/h
Pressure1023 hPa
Rain · recent0.1 mm
Rain · ahead0.6 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
Warm — slow
17°C est.ideal 1016°C
0°14°28°
How to fish it · for Brown Trout
When
Spring (April-June) brings the best hatches once the Casentino runoff settles; autumn into the reserve's December closure fishes well too, once the summer crowds thin. Midsummer heat can shut the no-kill water down by midday — mornings and evenings are more reliable.
Where
Broken pocket water and riffled runs through the stretch above Stia; slower glides and pool tails as the river opens out toward Pratovecchio. The no-kill water above the SP310 bridge at Tintoria holds the better fish.
Method
Upstream nymph or dry-dropper through the broken water; switch to a small dry over risers in the calmer glides. Single barbless hook mandatory throughout the reserve, and the upper stretch is release-only regardless of size.
Kit
8.5 to 9 ft #3/4 rod for this scale of water. Floating line, 9-12 ft leader to 5X-6X. Small Perdigóns and Pheasant Tails do the subsurface work; carry CDC duns and a Klinkhåmer for the hatch.
Why this works
Good water clarity is right today, though time of day could be better.
Likely species
Hatch timeline · todayPeak at 11h

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 3 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 as a supporter.

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Evidence
Survey-backed · regionalModerate 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
SO
Small Olive / BWO Emerger
18-22 · Pattern
Upstream dry, in the film
SZ
Small Zonker / Sculpin
6-10 · Pattern
Swing, sub-surface
Permits & access
Permit required — see local rules.
  • Regional Tuscany fishing licence (licenza di pesca dilettantistica, type B annual or type C fortnightly) required, plus the separate ZRS Capodarno daily permit (max €30, cap 40 anglers/day)
  • No-kill zone: single barbless hook, artificial lures only, immediate release
  • Controlled-harvest zone allows 3 salmonids/day, minimum 25cm.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Gallery · 2
  1. Cascatelle del fiume Arno
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 76 is built — score × weight = contribution
Temperature70 × 28%19.6
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity73 × 12%8.8
Conditions total= 77
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 2026-02-222026-12-31
Related guides
Booking & contacts