FungRadar

Foraging forecast: Oslo

Conditions in Oslo in September 2026 are middling, index 59 out of 100; of the species we model, weeping bolete is closest to its flush. There will be something, but you will have to look: check which of the coming days reads higher and go then.

A seven-day index for the species whose records are confirmed here — 26 of them right now. Flush phases and the factors behind the number, instead of a "chance of finding" percentage we cannot measure. Data updated 18 September 2026, 11:37 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.

Best today

Weeping Bolete

Suillus granulatus

Buildingconfidence 50%

Flush phase

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

Updated 18 September 2026, 11:37 BST

Map

Where to look: Oslo

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

Starting42 today

Week's best 43 — on Tuesdayaverage 40by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4218 Sept
  2. Sat4219 Sept
  3. Sun4020 Sept
  4. Mon4021 Sept
  5. Tue4322 Sept
  6. Wed3823 Sept
  7. Thu3524 Sept
Honey Fungus — botanical illustration

Honey Fungus

Armillaria mellea

Building54 today

Week's best 54 — on Fridayaverage 52by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today5418 Sept
  2. Sat5419 Sept
  3. Sun5420 Sept
  4. Mon5421 Sept
  5. Tue5122 Sept
  6. Wed4923 Sept
  7. Thu4824 Sept
Weeping Bolete — botanical illustration

Weeping Bolete

Suillus granulatus

Building59 today

Week's best 59 — on Fridayaverage 55by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today5918 Sept
  2. Sat5919 Sept
  3. Sun5920 Sept
  4. Mon5921 Sept
  5. Tue5322 Sept
  6. Wed5023 Sept
  7. Thu4824 Sept
Oyster Mushroom — botanical illustration

Oyster Mushroom

Pleurotus ostreatus

Quiet0 today

Zero all week: this species is not fruiting now.

Velvet Shank — botanical illustration

Velvet Shank

Flammulina velutipes

Quiet0 today

Zero all week: this species is not fruiting now.

Brown Birch Bolete — botanical illustration

Brown Birch Bolete

Leccinum scabrum

Building52 today

Week's best 52 — on Fridayaverage 48by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today5218 Sept
  2. Sat5219 Sept
  3. Sun5120 Sept
  4. Mon5121 Sept
  5. Tue4722 Sept
  6. Wed4223 Sept
  7. Thu3924 Sept
Orange Oak Bolete — botanical illustration

Orange Oak Bolete

Leccinum aurantiacum

Starting47 today

Week's best 47 — on Fridayaverage 43by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4718 Sept
  2. Sat4619 Sept
  3. Sun4520 Sept
  4. Mon4521 Sept
  5. Tue4322 Sept
  6. Wed3823 Sept
  7. Thu3524 Sept
Chanterelle — botanical illustration

Chanterelle

Cantharellus cibarius

Starting36 today

Week's best 36 — on Fridayaverage 34by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today3618 Sept
  2. Sat3619 Sept
  3. Sun3520 Sept
  4. Mon3521 Sept
  5. Tue3522 Sept
  6. Wed3223 Sept
  7. Thu2924 Sept
Lactarius resimus — botanical illustration

Lactarius resimus

Lactarius resimus

Starting47 today

Week's best 49average 47by the weekend steady

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

  1. Today4718 Sept
  2. Sat4719 Sept
  3. Sun4620 Sept
  4. Mon4621 Sept
  5. Tue4922 Sept
  6. Wed4623 Sept
  7. Thu4524 Sept
Saffron Milkcap — botanical illustration

Saffron Milkcap

Lactarius deliciosus

Building58 today

Week's best 59average 58by the weekend steady

The week is flat — no day to pick, conditions are the same throughout.

  1. Today5818 Sept
  2. Sat5919 Sept
  3. Sun5820 Sept
  4. Mon5821 Sept
  5. Tue5922 Sept
  6. Wed5623 Sept
  7. Thu5524 Sept
Bay Bolete — botanical illustration

Bay Bolete

Imleria badia

Building54 today

Week's best 56 — on Tuesdayaverage 53by the weekend falling

Conditions are best on Tuesday.

  1. Today5418 Sept
  2. Sat5419 Sept
  3. Sun5320 Sept
  4. Mon5321 Sept
  5. Tue5622 Sept
  6. Wed5123 Sept
  7. Thu4924 Sept
Sheathed Woodtuft — botanical illustration

Sheathed Woodtuft

Kuehneromyces mutabilis

Starting49 today

Week's best 50 — on Saturdayaverage 44by the weekend falling

Conditions are best on Saturday.

  1. Today4918 Sept
  2. Sat5019 Sept
  3. Sun4920 Sept
  4. Mon4921 Sept
  5. Tue4122 Sept
  6. Wed3723 Sept
  7. Thu3524 Sept
Field Blewit — botanical illustration

Field Blewit

Collybia personata

Building57 today

Week's best 58 — on Saturdayaverage 55by the weekend falling

Conditions are best on Saturday.

  1. Today5718 Sept
  2. Sat5819 Sept
  3. Sun5820 Sept
  4. Mon5821 Sept
  5. Tue5322 Sept
  6. Wed5023 Sept
  7. Thu4924 Sept
Wood Blewit — botanical illustration

Wood Blewit

Collybia nuda

Building55 today

Week's best 55 — on Fridayaverage 52by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today5518 Sept
  2. Sat5519 Sept
  3. Sun5520 Sept
  4. Mon5521 Sept
  5. Tue5022 Sept
  6. Wed4823 Sept
  7. Thu4724 Sept
Field Mushroom — botanical illustration

Field Mushroom

Agaricus campestris

Starting47 today

Week's best 48 — on Saturdayaverage 41by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4718 Sept
  2. Sat4819 Sept
  3. Sun4720 Sept
  4. Mon4721 Sept
  5. Tue3522 Sept
  6. Wed3223 Sept
  7. Thu2924 Sept
Fairy Ring Champignon — botanical illustration

Fairy Ring Champignon

Marasmius oreades

Starting47 today

Week's best 48 — on Saturdayaverage 41by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4718 Sept
  2. Sat4819 Sept
  3. Sun4720 Sept
  4. Mon4721 Sept
  5. Tue3622 Sept
  6. Wed3323 Sept
  7. Thu3124 Sept
Parasol — botanical illustration

Parasol

Macrolepiota procera

Building50 today

Week's best 50 — on Fridayaverage 44by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today5018 Sept
  2. Sat4919 Sept
  3. Sun4820 Sept
  4. Mon4821 Sept
  5. Tue4122 Sept
  6. Wed3623 Sept
  7. Thu3324 Sept
Common Puffball — botanical illustration

Common Puffball

Lycoperdon perlatum

Building50 today

Week's best 51 — on Saturdayaverage 45by the weekend falling

Conditions are best on Saturday.

  1. Today5018 Sept
  2. Sat5119 Sept
  3. Sun5120 Sept
  4. Mon5121 Sept
  5. Tue3922 Sept
  6. Wed3723 Sept
  7. Thu3524 Sept
Red Cracking Bolete — botanical illustration

Red Cracking Bolete

Xerocomellus chrysenteron

Starting48 today

Week's best 48 — on Fridayaverage 44by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4818 Sept
  2. Sat4719 Sept
  3. Sun4620 Sept
  4. Mon4621 Sept
  5. Tue4422 Sept
  6. Wed4023 Sept
  7. Thu3724 Sept
Bovine Bolete — botanical illustration

Bovine Bolete

Suillus bovinus

Starting48 today

Week's best 48 — on Fridayaverage 45by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4818 Sept
  2. Sat4819 Sept
  3. Sun4720 Sept
  4. Mon4721 Sept
  5. Tue4522 Sept
  6. Wed4123 Sept
  7. Thu3924 Sept
Milk White Brittlegill — botanical illustration

Milk White Brittlegill

Russula delica

Starting41 today

Week's best 41 — on Fridayaverage 38by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4118 Sept
  2. Sat4119 Sept
  3. Sun3920 Sept
  4. Mon4021 Sept
  5. Tue4022 Sept
  6. Wed3523 Sept
  7. Thu3224 Sept
Black Morel — botanical illustration

Black Morel

Morchella elata

Quiet0 today

Zero all week: this species is not fruiting now.

Fly Agaric — botanical illustration

Fly Agaric

Amanita muscaria

Building60 today

Week's best 60 — on Fridayaverage 58by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today6018 Sept
  2. Sat6019 Sept
  3. Sun5920 Sept
  4. Mon5921 Sept
  5. Tue5822 Sept
  6. Wed5523 Sept
  7. Thu5324 Sept
Panthercap — botanical illustration

Panthercap

Amanita pantherina

Building51 today

Week's best 51 — on Fridayaverage 47by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today5118 Sept
  2. Sat5119 Sept
  3. Sun4920 Sept
  4. Mon4921 Sept
  5. Tue4722 Sept
  6. Wed4223 Sept
  7. Thu3924 Sept

Orange Birch Bolete

Leccinum versipelle

Starting47 today

Week's best 47 — on Fridayaverage 43by the weekend falling

Conditions are poor: even the week's best day only reaches «slow».

  1. Today4718 Sept
  2. Sat4619 Sept
  3. Sun4520 Sept
  4. Mon4521 Sept
  5. Tue4322 Sept
  6. Wed3823 Sept
  7. Thu3524 Sept

Stinking Brittlegill

Russula foetens

Building50 today

Week's best 50 — on Fridayaverage 46by the weekend falling

Today is as good as it gets — conditions do not improve later this week.

  1. Today5018 Sept
  2. Sat5019 Sept
  3. Sun4920 Sept
  4. Mon4921 Sept
  5. Tue4722 Sept
  6. Wed4123 Sept
  7. Thu3824 Sept

Been out in Oslo? 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 Oslo in September 2026?

Conditions in Oslo in September 2026 are middling, index 59 out of 100; of the species we model, weeping bolete is closest to its flush. There will be something, but you will have to look: check which of the coming days reads higher and go then.

Which mushrooms are out in Oslo 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 Oslo?

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 59 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.