Rules at a glance
- Free fishing
- Fly only
Water temperature for Brown Trout
Ideal11.4°Cideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Spring and autumn are the reliable windows; summer afternoons carry glacial melt off the Rieserferner group and the fish go quiet until the light drops.
Where
Pocket water and short riffles through the upper and middle valley — classic granite-boulder structure. The trout hold tight to the breaks.
Method
Upstream nymph through the broken water, dry-dropper where it settles. Single barbless on the managed stretches.
Kit
9 to 10 ft #4, floating line, 12 ft leader to 4-5 lb fluoro. Studded boots — granite cobble is no less slippery than limestone.
Why this works
Good — water temperature is working for you, but time of day is the limiting factor today.
Likely species
Mayflies
Mayflies- Large dark oliveMost likely#14–16 · EmergerDead-drift the emerger — it's sitting in the film.
- Blue-winged oliveAlso possible#16–18 · DunDuns are up; a sherry spinner fall may follow.
- 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- CapererMost likelyLower confidence#10–12 · AdultBig autumn sedge; fish dry at last light.
- Net-spinning caddis (S. Europe)Also possibleLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- GrannomAlso possibleNearest relative#14–16 · PupaPupa first, then dries as the adults come off.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
Stoneflies
Stoneflies- Little Brown StoneMost likelyLower confidence#16–18 · AdultSmall dark stone nymph or adult in early spring.
- NeedleflyAlso possibleLower confidenceNearest relative#16–18 · AdultSmall slender stonefly; clean, cold headwater riffles.
Hatch timeline · todayPeak at 14:00
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
Alpine RhithrogenaHatch
2
3
3
2
Sculpin / Baitfish (Rivers)Hatch
2
3
3
3
3
3
3
3
2
Large Dark OliveHatch
1
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.
- Marble trout carry a year-round no-take rule (reservoirs excepted); brown trout have a 25cm minimum size and a 1 Dec-second Saturday of Feb closed season; grayling a 33cm minimum and a 1 Jan-31 May closed season
- Individual concession-holders can extend or tighten these rules for their own stretch.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
Terrain map
The full read · show the working · for Brown Trout · confidence 75%
How the 79 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity47 × 12%5.6
Conditions total= 79
Can you trust it?
Water temperaturelive gauge readinggauge
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 2026-02-15 → 2026-11-30
- Grayling 2026-06-01 → 2026-11-30
Rules are set at province or association level — check locally.
- Marble trout 2026-02-15 → 2026-11-30
Related guides
Booking & contacts
Aurino
Water temperature for Brown Trout
Ideal11.4°Cideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Spring and autumn are the reliable windows; summer afternoons carry glacial melt off the Rieserferner group and the fish go quiet until the light drops.
Where
Pocket water and short riffles through the upper and middle valley — classic granite-boulder structure. The trout hold tight to the breaks.
Method
Upstream nymph through the broken water, dry-dropper where it settles. Single barbless on the managed stretches.
Kit
9 to 10 ft #4, floating line, 12 ft leader to 4-5 lb fluoro. Studded boots — granite cobble is no less slippery than limestone.
Why this works
Good — water temperature is working for you, but time of day is the limiting factor today.
Likely species
Mayflies
- Large dark oliveMost likely#14–16 · EmergerDead-drift the emerger — it's sitting in the film.
- Blue-winged oliveAlso possible#16–18 · DunDuns are up; a sherry spinner fall may follow.
- 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
- CapererMost likelyLower confidence#10–12 · AdultBig autumn sedge; fish dry at last light.
- Net-spinning caddis (S. Europe)Also possibleLower confidenceNearest relative#12–14–16 · PupaWidespread riffle net-spinner; evening emergence.
- GrannomAlso possibleNearest relative#14–16 · PupaPupa first, then dries as the adults come off.
- Green SedgeAlso possibleLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
Stoneflies
- Little Brown StoneMost likelyLower confidence#16–18 · AdultSmall dark stone nymph or adult in early spring.
- NeedleflyAlso possibleLower confidenceNearest relative#16–18 · AdultSmall slender stonefly; clean, cold headwater riffles.
Hatch timeline · todayPeak at 14:00
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
Alpine RhithrogenaHatch
2
3
3
2
Sculpin / Baitfish (Rivers)Hatch
2
3
3
3
3
3
3
3
2
Large Dark OliveHatch
1
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.
- Marble trout carry a year-round no-take rule (reservoirs excepted); brown trout have a 25cm minimum size and a 1 Dec-second Saturday of Feb closed season; grayling a 33cm minimum and a 1 Jan-31 May closed season
- Individual concession-holders can extend or tighten these rules for their own stretch.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
Terrain map
The full read · show the working · for Brown Trout · confidence 75%
How the 79 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity47 × 12%5.6
Conditions total= 79
Can you trust it?
Water temperaturelive gauge readinggauge
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 2026-02-15 → 2026-11-30
- Grayling 2026-06-01 → 2026-11-30
Rules are set at province or association level — check locally.
- Marble trout 2026-02-15 → 2026-11-30
Related guides
Booking & contacts