Mayflies
Stoneflies
Caddisflies
Aquatic beetles
Gammarids
Grayling, brown trout, huchen and rainbow share it with nase, barbel, pike, zander, catfish, asp and burbot. Five clubs manage the length between them: RD Koroška, RD Radlje, RD Ruše, RD Maribor and RD Ptuj.
- River
- Mixed
Rules at a glance
- Permit required
- Fly only
Water temperature for Rainbow Trout
Cool — slow10°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is working for you, but time of day is the limiting factor today.
Likely species
Mayflies
- Angler's CurseMost 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.
Caddisflies
Aquatic beetles
- Diving beetlesMost likelyLower confidence#8–10–12 · AdultTwitch a beetle pattern along weedy edges at dusk.
Molluscs
- Pond snailsMost likelyLower confidence#10–12–14 · AdultDead-drift or twitch a snail pattern near weed beds.
Oligochaetes
- Aquatic wormsMost likelyLower confidence#12–14–16 · AdultDead-drift a worm pattern deep - a year-round staple.
Hatch timeline · todayPeak at 12pm
12pm(now) — Autumn Olive
Stage: On emergersApproach: Emerger or dryActivity: 70%
Also:Autumn Needle Fly41%Black Midge38%
Peak emergence window7 food groups active
Peak activity at 12pm — Autumn Olive (Autumn Olive, Peak emergence window)
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
Top prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
1
2
2
2
2
2
1
Evening SedgeHatch
2
3
3
3
2
Alpine RhithrogenaHatch
1
2
2
1
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Rainbow Trout fly box
Ultra-clear spring-fed rivers with large educated trout. Sight fishing, technical presentation, fine tippets. Euro-nymphing dominant subsurface method. Exceptional dry-fly windows during hatch periods. Gacka is the flagship water.
Top
6–10 · Pattern
High-confidence seasonal pick
Permits & access
Permit required — see local rules.
- RD Koroška / RD Radlje / RD Ruše / RD Maribor / RD Ptuj — district varies along the length.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Drava leaving Dravograd Terrain map
About this water
The full read · show the working · for Rainbow Trout · confidence 75%
How the 80 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow95 × 22%20.9
Clarity85 × 18%15.3
Feeding Time40 × 13%5.2
Pressure75 × 7%5.3
Insect activity45 × 12%5.4
Conditions total= 80
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 March → 30 September
- Grayling 16 May → 30 November
Slovenian common default: grayling 16 May – 30 November (lipan). Permit and fishing district controlled — dates may vary by specific water.
Prime sport 1 September → 30 November
- Hucho 31 October → 15 February
Related guides
Booking & contacts
Clubs & associations
- RD KoroškaPermit required · Koroška reach
- RD RadljePermit required · Radlje district
- RD RušePermit required · Ruše district
- RD MariborPermit required · Maribor district
- RD PtujPermit required · Ptuj district
Drava (Koroška reach)
Slovenia's second river, and structurally different from everything else in this pack: broad, warmer, heavily hydro-regulated water through Koroška and on towards Maribor and Ptuj, with a flow behaviour unlike anything else currently modelled here — dam-driven rather than rainfall-driven.
Water temperature for Rainbow Trout
Cool — slow10°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is working for you, but time of day is the limiting factor today.
Likely species
Mayflies
- Angler's CurseMost 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.
Caddisflies
Aquatic beetles
- Diving beetlesMost likelyLower confidence#8–10–12 · AdultTwitch a beetle pattern along weedy edges at dusk.
Molluscs
- Pond snailsMost likelyLower confidence#10–12–14 · AdultDead-drift or twitch a snail pattern near weed beds.
Oligochaetes
- Aquatic wormsMost likelyLower confidence#12–14–16 · AdultDead-drift a worm pattern deep - a year-round staple.
Hatch timeline · todayPeak at 12pm
12pm(now) — Autumn Olive
Stage: On emergersApproach: Emerger or dryActivity: 70%
Also:Autumn Needle Fly41%Black Midge38%
Peak emergence window7 food groups active
Peak activity at 12pm — Autumn Olive (Autumn Olive, Peak emergence window)
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
Top prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
1
2
2
2
2
2
1
Evening SedgeHatch
2
3
3
3
2
Alpine RhithrogenaHatch
1
2
2
1
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Rainbow Trout fly box
Ultra-clear spring-fed rivers with large educated trout. Sight fishing, technical presentation, fine tippets. Euro-nymphing dominant subsurface method. Exceptional dry-fly windows during hatch periods. Gacka is the flagship water.
Top
6–10 · Pattern
High-confidence seasonal pick
Permits & access
Permit required — see local rules.
- RD Koroška / RD Radlje / RD Ruše / RD Maribor / RD Ptuj — district varies along the length.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Drava leaving Dravograd Terrain map
About this water
Grayling, brown trout, huchen and rainbow share it with nase, barbel, pike, zander, catfish, asp and burbot. Five clubs manage the length between them: RD Koroška, RD Radlje, RD Ruše, RD Maribor and RD Ptuj.
- River
- Mixed
The full read · show the working · for Rainbow Trout · confidence 75%
How the 80 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow95 × 22%20.9
Clarity85 × 18%15.3
Feeding Time40 × 13%5.2
Pressure75 × 7%5.3
Insect activity45 × 12%5.4
Conditions total= 80
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 March → 30 September
- Grayling 16 May → 30 November
Slovenian common default: grayling 16 May – 30 November (lipan). Permit and fishing district controlled — dates may vary by specific water.
Prime sport 1 September → 30 November
- Hucho 31 October → 15 February
Related guides
Booking & contacts
Clubs & associations
- RD KoroškaPermit required · Koroška reach
- RD RadljePermit required · Radlje district
- RD RušePermit required · Ruše district
- RD MariborPermit required · Maribor district
- RD PtujPermit required · Ptuj district
At a glance
Drava (Koroška reach) is a river in Koroška / Dravograd, Slovenia. It sits at about 380 m above sea level. The river is described as roughly 90 km long. Our data lists 11 species here, including grayling, brown trout and hucho. The trout season is recorded as running from 1 March to 30 September. The grayling season is recorded as running from 16 May to 30 November. Best window recorded for anglers: May–October (trout/grayling); 31 Oct–15 Feb (huchen). Core methods listed: Streamer (huchen); Dry fly; Nymph. Level and flow data for this water is linked from 2 gauges. Nearby waters in our listings include Meža at 7.0 km, Mislinja at 17 km and Savinja at 28 km.