FungRadar

Foraging forecast: Koroška

Yes — conditions in Koroška in September 2026 are good, index 70 out of 100, with saffron milkcap furthest along. That is a reading of weather, woodland and season: it does not promise you a full basket, but this is one of the weeks worth going out.

A seven-day index for the species whose records are confirmed here — 25 of them right now. Flush phases and the factors behind the number, instead of a "chance of finding" percentage we cannot measure. Data updated 17 September 2026, 11:22 BST.

The map is built from the measurement network — one point per sizeable town and more in between. A detailed 2.5 km grid is computed for one region so far: it needs its own run for every cell.

Biting insects: blackfly — the odd one. What to bring.

Best today

Saffron Milkcap

Lactarius deliciosus

Buildingconfidence 50%

Flush phase

  1. Quiet
  2. Starting
  3. Building
  4. Peak
  5. Fading

Updated 17 September 2026, 11:22 BST

Map

Where to look: Koroška

Values are computed at measurement points and interpolated between them. Clicking a point opens that town.

Open the interactive map

By species

The week, species by species

Each row is its own seven days. Today is outlined.

Penny Bun — botanical illustration

Penny Bun

Boletus edulis

Building66 today

Week's best 72 — on Mondayaverage 68by the weekend steady

Conditions are best on Monday.

  1. Today6617 Sept
  2. Fri6618 Sept
  3. Sat6819 Sept
  4. Sun7020 Sept
  5. Mon7221 Sept
  6. Tue7122 Sept
  7. Wed6623 Sept
Honey Fungus — botanical illustration

Honey Fungus

Armillaria mellea

Building60 today

Week's best 70 — on Tuesdayaverage 65by the weekend rising

Conditions are best on Tuesday.

  1. Today6017 Sept
  2. Fri6018 Sept
  3. Sat6219 Sept
  4. Sun6620 Sept
  5. Mon6821 Sept
  6. Tue7022 Sept
  7. Wed6923 Sept
Weeping Bolete — botanical illustration

Weeping Bolete

Suillus granulatus

Building64 today

Week's best 76 — on Tuesdayaverage 70by the weekend rising

Conditions are best on Tuesday.

  1. Today6417 Sept
  2. Fri6318 Sept
  3. Sat6619 Sept
  4. Sun7220 Sept
  5. Mon7421 Sept
  6. Tue7622 Sept
  7. Wed7423 Sept
Oyster Mushroom — botanical illustration

Oyster Mushroom

Pleurotus ostreatus

Quiet0 today

Week's best 0average 0by the weekend steady

Conditions stay poor all week — not worth the trip yet.

  1. Today017 Sept
  2. Fri018 Sept
  3. Sat019 Sept
  4. Sun020 Sept
  5. Mon021 Sept
  6. Tue022 Sept
  7. Wed023 Sept
Velvet Shank — botanical illustration

Velvet Shank

Flammulina velutipes

Quiet0 today

Week's best 0average 0by the weekend steady

Conditions stay poor all week — not worth the trip yet.

  1. Today017 Sept
  2. Fri018 Sept
  3. Sat019 Sept
  4. Sun020 Sept
  5. Mon021 Sept
  6. Tue022 Sept
  7. Wed023 Sept
Brown Birch Bolete — botanical illustration

Brown Birch Bolete

Leccinum scabrum

Building64 today

Week's best 70 — on Mondayaverage 67by the weekend steady

Conditions are best on Monday.

  1. Today6417 Sept
  2. Fri6318 Sept
  3. Sat6419 Sept
  4. Sun6920 Sept
  5. Mon7021 Sept
  6. Tue7022 Sept
  7. Wed6823 Sept
Orange Oak Bolete — botanical illustration

Orange Oak Bolete

Leccinum aurantiacum

Building63 today

Week's best 70 — on Mondayaverage 66by the weekend steady

Conditions are best on Monday.

  1. Today6317 Sept
  2. Fri6418 Sept
  3. Sat6419 Sept
  4. Sun6820 Sept
  5. Mon7021 Sept
  6. Tue7022 Sept
  7. Wed6523 Sept
Chanterelle — botanical illustration

Chanterelle

Cantharellus cibarius

Building54 today

Week's best 58 — on Mondayaverage 55by the weekend steady

Conditions are best on Monday.

  1. Today5417 Sept
  2. Fri5418 Sept
  3. Sat5519 Sept
  4. Sun5620 Sept
  5. Mon5821 Sept
  6. Tue5622 Sept
  7. Wed5323 Sept
Lactarius resimus — botanical illustration

Lactarius resimus

Lactarius resimus

Building61 today

Week's best 66 — on Mondayaverage 64by the weekend steady

Conditions are best on Monday.

  1. Today6117 Sept
  2. Fri6218 Sept
  3. Sat6319 Sept
  4. Sun6520 Sept
  5. Mon6621 Sept
  6. Tue6622 Sept
  7. Wed6423 Sept
Saffron Milkcap — botanical illustration

Saffron Milkcap

Lactarius deliciosus

Building70 today

Week's best 77 — on Tuesdayaverage 74by the weekend rising

Conditions are best on Tuesday.

  1. Today7017 Sept
  2. Fri7218 Sept
  3. Sat7219 Sept
  4. Sun7520 Sept
  5. Mon7621 Sept
  6. Tue7722 Sept
  7. Wed7623 Sept
Bay Bolete — botanical illustration

Bay Bolete

Imleria badia

Building68 today

Week's best 76 — on Tuesdayaverage 73by the weekend rising

Conditions are best on Tuesday.

  1. Today6817 Sept
  2. Fri7018 Sept
  3. Sat7219 Sept
  4. Sun7420 Sept
  5. Mon7521 Sept
  6. Tue7622 Sept
  7. Wed7323 Sept
Sheathed Woodtuft — botanical illustration

Sheathed Woodtuft

Kuehneromyces mutabilis

Building54 today

Week's best 62 — on Mondayaverage 58by the weekend rising

Conditions are best on Monday.

  1. Today5417 Sept
  2. Fri5318 Sept
  3. Sat5419 Sept
  4. Sun6020 Sept
  5. Mon6221 Sept
  6. Tue6222 Sept
  7. Wed6123 Sept
Field Blewit — botanical illustration

Field Blewit

Collybia personata

Building58 today

Week's best 70 — on Wednesdayaverage 63by the weekend rising

Conditions are best on Wednesday.

  1. Today5817 Sept
  2. Fri5618 Sept
  3. Sat5819 Sept
  4. Sun6420 Sept
  5. Mon6621 Sept
  6. Tue6922 Sept
  7. Wed7023 Sept
Wood Blewit — botanical illustration

Wood Blewit

Collybia nuda

Building58 today

Week's best 70 — on Tuesdayaverage 64by the weekend rising

Conditions are best on Tuesday.

  1. Today5817 Sept
  2. Fri5818 Sept
  3. Sat6019 Sept
  4. Sun6620 Sept
  5. Mon6821 Sept
  6. Tue7022 Sept
  7. Wed6923 Sept
Field Mushroom — botanical illustration

Field Mushroom

Agaricus campestris

Building58 today

Week's best 63 — on Mondayaverage 60by the weekend steady

Conditions are best on Monday.

  1. Today5817 Sept
  2. Fri5618 Sept
  3. Sat5719 Sept
  4. Sun6220 Sept
  5. Mon6321 Sept
  6. Tue6322 Sept
  7. Wed6023 Sept
Fairy Ring Champignon — botanical illustration

Fairy Ring Champignon

Marasmius oreades

Building55 today

Week's best 60 — on Mondayaverage 57by the weekend steady

Conditions are best on Monday.

  1. Today5517 Sept
  2. Fri5418 Sept
  3. Sat5519 Sept
  4. Sun5820 Sept
  5. Mon6021 Sept
  6. Tue6022 Sept
  7. Wed5823 Sept
Parasol — botanical illustration

Parasol

Macrolepiota procera

Building62 today

Week's best 68 — on Mondayaverage 64by the weekend steady

Conditions are best on Monday.

  1. Today6217 Sept
  2. Fri6018 Sept
  3. Sat6119 Sept
  4. Sun6720 Sept
  5. Mon6821 Sept
  6. Tue6822 Sept
  7. Wed6423 Sept
Common Puffball — botanical illustration

Common Puffball

Lycoperdon perlatum

Building56 today

Week's best 62 — on Tuesdayaverage 58by the weekend steady

Conditions are best on Tuesday.

  1. Today5617 Sept
  2. Fri5418 Sept
  3. Sat5619 Sept
  4. Sun6020 Sept
  5. Mon6021 Sept
  6. Tue6222 Sept
  7. Wed6023 Sept
Red Cracking Bolete — botanical illustration

Red Cracking Bolete

Xerocomellus chrysenteron

Building60 today

Week's best 68 — on Tuesdayaverage 64by the weekend steady

Conditions are best on Tuesday.

  1. Today6017 Sept
  2. Fri6118 Sept
  3. Sat6219 Sept
  4. Sun6620 Sept
  5. Mon6721 Sept
  6. Tue6822 Sept
  7. Wed6423 Sept
Bovine Bolete — botanical illustration

Bovine Bolete

Suillus bovinus

Building58 today

Week's best 66 — on Tuesdayaverage 62by the weekend rising

Conditions are best on Tuesday.

  1. Today5817 Sept
  2. Fri5818 Sept
  3. Sat6019 Sept
  4. Sun6420 Sept
  5. Mon6421 Sept
  6. Tue6622 Sept
  7. Wed6323 Sept
Milk White Brittlegill — botanical illustration

Milk White Brittlegill

Russula delica

Building59 today

Week's best 66 — on Mondayaverage 63by the weekend steady

Conditions are best on Monday.

  1. Today5917 Sept
  2. Fri6018 Sept
  3. Sat6219 Sept
  4. Sun6520 Sept
  5. Mon6621 Sept
  6. Tue6622 Sept
  7. Wed6223 Sept
Black Morel — botanical illustration

Black Morel

Morchella elata

Quiet0 today

Week's best 0average 0by the weekend steady

Conditions stay poor all week — not worth the trip yet.

  1. Today017 Sept
  2. Fri018 Sept
  3. Sat019 Sept
  4. Sun020 Sept
  5. Mon021 Sept
  6. Tue022 Sept
  7. Wed023 Sept
Fly Agaric — botanical illustration

Fly Agaric

Amanita muscaria

Building69 today

Week's best 77 — on Tuesdayaverage 73by the weekend rising

Conditions are best on Tuesday.

  1. Today6917 Sept
  2. Fri7018 Sept
  3. Sat7119 Sept
  4. Sun7520 Sept
  5. Mon7621 Sept
  6. Tue7722 Sept
  7. Wed7623 Sept
Panthercap — botanical illustration

Panthercap

Amanita pantherina

Building64 today

Week's best 70 — on Mondayaverage 67by the weekend steady

Conditions are best on Monday.

  1. Today6417 Sept
  2. Fri6418 Sept
  3. Sat6619 Sept
  4. Sun6920 Sept
  5. Mon7021 Sept
  6. Tue7022 Sept
  7. Wed6623 Sept

Orange Birch Bolete

Leccinum versipelle

Building63 today

Week's best 70 — on Mondayaverage 66by the weekend steady

Conditions are best on Monday.

  1. Today6317 Sept
  2. Fri6418 Sept
  3. Sat6419 Sept
  4. Sun6820 Sept
  5. Mon7021 Sept
  6. Tue7022 Sept
  7. Wed6523 Sept

Numbers are taken at the measurement point nearest the centre of the region — a real calculation at one place, not an average over the whole area. A town an hour away will read differently, and its own page says so.

Been out in Koroška? Tell us how it went

No sign-up, five seconds. Reports are visible to everyone and help us check the forecast — where people say “nothing out there” and the model promises a flush, the model is wrong.

How much did you find?
When were you out?

This form does not ask for coordinates. What gets published is the name, the rating and the text — nothing else.

Common questions

Are there mushrooms in Koroška in September 2026?

Yes — conditions in Koroška in September 2026 are good, index 70 out of 100, with saffron milkcap furthest along. That is a reading of weather, woodland and season: it does not promise you a full basket, but this is one of the weeks worth going out.

Which mushrooms are out in Koroška right now?

The species list for this region is built from confirmed records in GBIF. As soon as there are enough of them, the species appear here with their own forecast — we do not add a species to a region on a guess.

How is the index calculated?

An index from 0 to 100, built from the last month of weather, satellite woodland data, terrain and the seasonal window of each species. It is not a probability of finding anything: it is how well conditions match what that species needs.

When is the best day to go in Koroška?

Use the seven-day index on this page: pick the day with the higher number, and watch the flush phase — «Building» and «Peak» are the ones worth the drive. Today reads 70 out of 100.

The index is high but I found nothing — why?

The index reads weather and season — things that are the same for tens of kilometres around. It does not know your particular wood, and that is where the mushroom grows. The usual reasons: wrong trees — every species has its own, and no weather makes up for the wrong stand; the wood was felled recently or is young — the mycelium takes years to recover; the spot is picked out — everything near a road or a car park goes over a weekend; the flush has been taken — you came a day after those who came on time; or the flush passed and slugs and larvae got there first, which the model cannot see. The reverse holds too: a low index does not mean an empty wood. It means the conditions are against you, not that there is nothing there.

How the index is calculated, and what the model cannot promise — on the about page.