Valsugana river wider than many Trentino streams, offering mixed runs, pools and riffles where brown trout and marble trout hold. Good fly water when levels settle. Grayling in some sections too—a river of varied character.
- Limestone
Rules at a glance
- Free fishing
- Fly only
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
55% confidence in this read
Live now
Conditions on the water
Trends shown where the gauge supports them
Level
Dry recently
No gauge reading
Water temp
7.0°C
Estimated
Clarity
Clear
Air temp
3°C
Wind
N 7 km/h
Light breeze
Pressure
1012 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
7.4 mm
Light rain · next 48h
Live readings — water temperature is an estimate where the gauge does not record it.
How to fish · for grayling
The brief
When · where · method · kit
How to fish it · for grayling
When
Autumn through November — September into early November prime. Check the FIPSAS regional permit for current grayling season dates.
Where
Faster gravel runs and the heads of riffles in the middle and lower river. Deeper glide tails through autumn.
Method
Euro-nymphing primary — Perdigons and small dropper nymphs through the pocket water. Switch to dries when sedges or olives come off in autumn afternoons.
Kit
10 ft #3 nymphing rod, 4 to 5 lb fluoro tippet; 9 ft #4 for dries. 12 ft leader. Studded boots.
Why this works
Good conditions. Temperature is favourable (100), Feeding time is weakest (10).
Hatches & runs
What's on, when
Twelve months at a glance
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Today's fly · curated pack
Top pattern + the box
4 patterns from this venue's curated pack
Detail · next 12h
Water temperature & rain
The two readings most likely to move the verdict
Water temperature for grayling
Ideal7°C est.ideal 4–14°C
0°14°28°
Evidence
Why today scores what it does
6 factors, signed
- Temperature10028% weight
- Flow6022% weight
- Clarity8518% weight
- Feeding Time1013% weight
- Pressure807% weight
- Prey Activity4012% weight
About this water
Brenta (Trentino), end to end
Field guide · contributor-editedBrenta (Trentino) · about
What this water is
Background · character · contributors
About this water
Brenta (Trentino) · directions
How to get to the water
Directions
Brenta (Trentino) · zones
Where the rules change
Seasons · zones · per-species rules
Seasons & zones
- Trout2026-02-15 → 2026-10-07
- Graylingvaries_by_water → varies_by_water
- Marble trout2026-03-01 → 2026-09-30
Brenta (Trentino) · permits
Licences, sorteo, the rules
Permits & access
Permit required — see local rules.
- Italian fishing license (permesso di pesca) varies by provincia (province)
- Barbless hooks often required on protected waters
- Catch limits may apply.
Brenta (Trentino)
Terrain map
Valsugana river wider than many Trentino streams, offering mixed runs, pools and riffles where brown trout and marble trout hold.
Species
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
55% confidence in this read
Water temperature for grayling
Ideal7°C est.ideal 4–14°C
0°14°28°
Why this score · for grayling
- Temperature10028% weight
- Flow6022% weight
- Clarity8518% weight
- Feeding Time1013% weight
- Pressure807% weight
- Prey Activity4012% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
7.0°C
Estimated
Clarity
Clear
Air temp
3°C
Wind
N 7 km/h
Light breeze
Pressure
1012 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
7.4 mm
Light rain · next 48h
Live readings — water temperature is an estimate where the gauge does not record it.
How to fish it · for grayling
When
Autumn through November — September into early November prime. Check the FIPSAS regional permit for current grayling season dates.
Where
Faster gravel runs and the heads of riffles in the middle and lower river. Deeper glide tails through autumn.
Method
Euro-nymphing primary — Perdigons and small dropper nymphs through the pocket water. Switch to dries when sedges or olives come off in autumn afternoons.
Kit
10 ft #3 nymphing rod, 4 to 5 lb fluoro tippet; 9 ft #4 for dries. 12 ft leader. Studded boots.
Why this works
Good conditions. Temperature is favourable (100), Feeding time is weakest (10).
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Permits & access
Permit required — see local rules.
- Italian fishing license (permesso di pesca) varies by provincia (province)
- Barbless hooks often required on protected waters
- Catch limits may apply.
Directions
About this water
Valsugana river wider than many Trentino streams, offering mixed runs, pools and riffles where brown trout and marble trout hold. Good fly water when levels settle. Grayling in some sections too—a river of varied character.
- Limestone
Seasons & zones
- Trout2026-02-15 → 2026-10-07
- Graylingvaries_by_water → varies_by_water
- Marble trout2026-03-01 → 2026-09-30
Other water nearby · 5
Booking & contacts