- Permit required
- Fly only
- Angler's CurseMost likelyLower confidenceNearest relative#20–22 · SpinnerGo tiny: 20-22 spent spinner, single fly, long tippet.
- Blue-winged oliveAlso possible#16–18 · DunDuns are up; a sherry spinner fall may follow.
- 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.
- Green SedgeMost likelyLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
- GrannomAlso possibleNearest relative#14–16 · PupaPupa first, then dries as the adults come off.
- Welshman's ButtonAlso possibleLower confidence#12–14 · Egg-layingSkitter it at dusk — this one's fished, not dead-drifted.
- Pond snailsMost likelyLower confidence#10–12–14 · AdultDead-drift or twitch a snail pattern near weed beds.
- Aquatic wormsMost likelyLower confidence#12–14–16 · AdultDead-drift a worm pattern deep - a year-round staple.
Hatch predictions
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Beyond the hatch · worth watchingambient prey(1)
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Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
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.
- Local ribiška družina (Celje area) — exact club not independently confirmed.

Hudinja, Vojnik, 2007 Terrain map
The full read · show the working · for Grayling · confidence 90%
- 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
Hudinja

A Savinja tributary running through Vojnik towards Celje, holding brown trout and grayling in modest, unspectacular numbers — a workaday small river rather than a destination in its own right, but useful for rounding out the Savinja basin alongside the mainstem and the Dreta, and no worse a way to spend an afternoon for being modest about it.
- Angler's CurseMost likelyLower confidenceNearest relative#20–22 · SpinnerGo tiny: 20-22 spent spinner, single fly, long tippet.
- Blue-winged oliveAlso possible#16–18 · DunDuns are up; a sherry spinner fall may follow.
- 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.
- Green SedgeMost likelyLower confidenceNearest relative#10–12–14–16 · NymphFree-living green caddis larva; fast stony riffles.
- GrannomAlso possibleNearest relative#14–16 · PupaPupa first, then dries as the adults come off.
- Welshman's ButtonAlso possibleLower confidence#12–14 · Egg-layingSkitter it at dusk — this one's fished, not dead-drifted.
- Pond snailsMost likelyLower confidence#10–12–14 · AdultDead-drift or twitch a snail pattern near weed beds.
- Aquatic wormsMost likelyLower confidence#12–14–16 · AdultDead-drift a worm pattern deep - a year-round staple.
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.
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Hatch predictions
Top nymph shown — see all 3 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.
Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
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.
- Local ribiška družina (Celje area) — exact club not independently confirmed.

Hudinja, Vojnik, 2007 Terrain map
The full read · show the working · for Grayling · confidence 90%
- 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
Hudinja is a freestone river in Savinjska / Vojnik–Celje, Slovenia. It sits at about 280 m above sea level. The river is described as roughly 24 km long. Species listed for this water: brown trout and grayling. 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–September. Core methods listed: Dry fly; Upstream nymph. Level and flow data for this water is linked from 1 gauge. Nearby waters in our listings include Dravinja / Oplotniščica at 15 km, Mislinja at 27 km and Dreta at 30 km.