FungRadar

Foraging forecast: Utrecht

Yes — conditions in Utrecht in September 2026 are good, index 61 out of 100, with penny bun 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.

Best today

Penny Bun

Boletus edulis

Buildingconfidence 48%

Flush phase

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

Updated 17 September 2026, 11:22 BST

Map

Where to look: Utrecht

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

Building61 today

Week's best 62 — on Sundayaverage 60by the weekend falling

Conditions are best on Sunday.

  1. Today6117 Sept
  2. Fri6118 Sept
  3. Sat6119 Sept
  4. Sun6220 Sept
  5. Mon6221 Sept
  6. Tue6022 Sept
  7. Wed5523 Sept
Honey Fungus — botanical illustration

Honey Fungus

Armillaria mellea

Building53 today

Week's best 56average 55by the weekend steady

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

  1. Today5317 Sept
  2. Fri5418 Sept
  3. Sat5619 Sept
  4. Sun5620 Sept
  5. Mon5621 Sept
  6. Tue5622 Sept
  7. Wed5423 Sept
Weeping Bolete — botanical illustration

Weeping Bolete

Suillus granulatus

Building56 today

Week's best 62 — on Tuesdayaverage 59by the weekend steady

Conditions are best on Tuesday.

  1. Today5617 Sept
  2. Fri5818 Sept
  3. Sat6019 Sept
  4. Sun6020 Sept
  5. Mon6021 Sept
  6. Tue6222 Sept
  7. Wed6023 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

Building56 today

Week's best 58average 57by the weekend steady

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

  1. Today5617 Sept
  2. Fri5718 Sept
  3. Sat5819 Sept
  4. Sun5820 Sept
  5. Mon5821 Sept
  6. Tue5822 Sept
  7. Wed5523 Sept
Orange Oak Bolete — botanical illustration

Orange Oak Bolete

Leccinum aurantiacum

Building56 today

Week's best 58average 57by the weekend steady

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

  1. Today5617 Sept
  2. Fri5818 Sept
  3. Sat5819 Sept
  4. Sun5820 Sept
  5. Mon5821 Sept
  6. Tue5722 Sept
  7. Wed5423 Sept
Chanterelle — botanical illustration

Chanterelle

Cantharellus cibarius

Building52 today

Week's best 52average 51by the weekend steady

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

  1. Today5217 Sept
  2. Fri5218 Sept
  3. Sat5019 Sept
  4. Sun5220 Sept
  5. Mon5021 Sept
  6. Tue5022 Sept
  7. Wed4823 Sept
Lactarius resimus — botanical illustration

Lactarius resimus

Lactarius resimus

Building53 today

Week's best 53 — on Thursdayaverage 52by the weekend falling

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

  1. Today5317 Sept
  2. Fri5318 Sept
  3. Sat5219 Sept
  4. Sun5320 Sept
  5. Mon5321 Sept
  6. Tue5022 Sept
  7. Wed4723 Sept
Saffron Milkcap — botanical illustration

Saffron Milkcap

Lactarius deliciosus

Building60 today

Week's best 62average 60by the weekend steady

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

  1. Today6017 Sept
  2. Fri6018 Sept
  3. Sat6019 Sept
  4. Sun6120 Sept
  5. Mon6221 Sept
  6. Tue6122 Sept
  7. Wed5823 Sept
Bay Bolete — botanical illustration

Bay Bolete

Imleria badia

Building60 today

Week's best 61 — on Sundayaverage 59by the weekend falling

Conditions are best on Sunday.

  1. Today6017 Sept
  2. Fri6018 Sept
  3. Sat6019 Sept
  4. Sun6120 Sept
  5. Mon6121 Sept
  6. Tue5822 Sept
  7. Wed5423 Sept
Sheathed Woodtuft — botanical illustration

Sheathed Woodtuft

Kuehneromyces mutabilis

Building49 today

Week's best 52average 50by the weekend steady

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

  1. Today4917 Sept
  2. Fri5018 Sept
  3. Sat5219 Sept
  4. Sun5220 Sept
  5. Mon5121 Sept
  6. Tue5122 Sept
  7. Wed4823 Sept
Field Blewit — botanical illustration

Field Blewit

Collybia personata

Starting37 today

Week's best 46 — on Tuesdayaverage 42by the weekend rising

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

  1. Today3717 Sept
  2. Fri3918 Sept
  3. Sat4019 Sept
  4. Sun4120 Sept
  5. Mon4221 Sept
  6. Tue4622 Sept
  7. Wed4623 Sept
Wood Blewit — botanical illustration

Wood Blewit

Collybia nuda

Starting46 today

Week's best 55 — on Tuesdayaverage 51by the weekend rising

Conditions are best on Tuesday.

  1. Today4617 Sept
  2. Fri4818 Sept
  3. Sat5019 Sept
  4. Sun5020 Sept
  5. Mon5121 Sept
  6. Tue5522 Sept
  7. Wed5423 Sept
Field Mushroom — botanical illustration

Field Mushroom

Agaricus campestris

Building54 today

Week's best 57 — on Saturdayaverage 55by the weekend steady

Conditions are best on Saturday.

  1. Today5417 Sept
  2. Fri5418 Sept
  3. Sat5719 Sept
  4. Sun5720 Sept
  5. Mon5621 Sept
  6. Tue5622 Sept
  7. Wed5223 Sept
Fairy Ring Champignon — botanical illustration

Fairy Ring Champignon

Marasmius oreades

Building49 today

Week's best 53 — on Saturdayaverage 51by the weekend steady

Conditions are best on Saturday.

  1. Today4917 Sept
  2. Fri5018 Sept
  3. Sat5319 Sept
  4. Sun5220 Sept
  5. Mon5221 Sept
  6. Tue5222 Sept
  7. Wed4823 Sept
Parasol — botanical illustration

Parasol

Macrolepiota procera

Building56 today

Week's best 58average 57by the weekend steady

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

  1. Today5617 Sept
  2. Fri5718 Sept
  3. Sat5819 Sept
  4. Sun5820 Sept
  5. Mon5821 Sept
  6. Tue5722 Sept
  7. Wed5423 Sept
Common Puffball — botanical illustration

Common Puffball

Lycoperdon perlatum

Building50 today

Week's best 53 — on Saturdayaverage 51by the weekend steady

Conditions are best on Saturday.

  1. Today5017 Sept
  2. Fri5018 Sept
  3. Sat5319 Sept
  4. Sun5320 Sept
  5. Mon5221 Sept
  6. Tue5222 Sept
  7. Wed4823 Sept
Red Cracking Bolete — botanical illustration

Red Cracking Bolete

Xerocomellus chrysenteron

Building52 today

Week's best 54average 53by the weekend steady

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

  1. Today5217 Sept
  2. Fri5418 Sept
  3. Sat5419 Sept
  4. Sun5420 Sept
  5. Mon5421 Sept
  6. Tue5322 Sept
  7. Wed5023 Sept
Bovine Bolete — botanical illustration

Bovine Bolete

Suillus bovinus

Building50 today

Week's best 52average 51by the weekend steady

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

  1. Today5017 Sept
  2. Fri5018 Sept
  3. Sat5219 Sept
  4. Sun5220 Sept
  5. Mon5221 Sept
  6. Tue5022 Sept
  7. Wed4823 Sept
Milk White Brittlegill — botanical illustration

Milk White Brittlegill

Russula delica

Building54 today

Week's best 54 — on Thursdayaverage 53by the weekend falling

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

  1. Today5417 Sept
  2. Fri5418 Sept
  3. Sat5419 Sept
  4. Sun5420 Sept
  5. Mon5421 Sept
  6. Tue5222 Sept
  7. Wed4923 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

Building62 today

Week's best 63 — on Sundayaverage 62by the weekend steady

Conditions are best on Sunday.

  1. Today6217 Sept
  2. Fri6218 Sept
  3. Sat6219 Sept
  4. Sun6320 Sept
  5. Mon6321 Sept
  6. Tue6222 Sept
  7. Wed5823 Sept
Panthercap — botanical illustration

Panthercap

Amanita pantherina

Building56 today

Week's best 58 — on Saturdayaverage 56by the weekend steady

Conditions are best on Saturday.

  1. Today5617 Sept
  2. Fri5718 Sept
  3. Sat5819 Sept
  4. Sun5820 Sept
  5. Mon5721 Sept
  6. Tue5622 Sept
  7. Wed5223 Sept

Orange Birch Bolete

Leccinum versipelle

Building56 today

Week's best 58average 57by the weekend steady

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

  1. Today5617 Sept
  2. Fri5818 Sept
  3. Sat5819 Sept
  4. Sun5820 Sept
  5. Mon5821 Sept
  6. Tue5722 Sept
  7. Wed5423 Sept

Been out in Utrecht? 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 Utrecht in September 2026?

Yes — conditions in Utrecht in September 2026 are good, index 61 out of 100, with penny bun 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 Utrecht 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 Utrecht?

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 61 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.