Foraging forecast: Basel-Stadt

Not yet: conditions in Basel-Stadt in September 2026 are poor, index 33 out of 100. Going on the off chance is not worth it — watch the next few days, a flush can start once the rain arrives.

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

Startingconfidence 50%

Flush phase

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

Updated 17 September 2026, 11:22 BST

Map

Where to look: Basel-Stadt

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

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

Starting33 today

Week's best 33on Thursdayaverage 28by the weekend falling

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

  1. Today3317 Sept
  2. Fri3318 Sept
  3. Sat3019 Sept
  4. Sun2520 Sept
  5. Mon2521 Sept
  6. Tue2522 Sept
  7. Wed2723 Sept
Honey Fungus — botanical illustration

Honey Fungus

Armillaria mellea

Starting25 today

Week's best 25average 24by the weekend steady

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

  1. Today2517 Sept
  2. Fri2518 Sept
  3. Sat2519 Sept
  4. Sun2120 Sept
  5. Mon2221 Sept
  6. Tue2422 Sept
  7. Wed2423 Sept
Weeping Bolete — botanical illustration

Weeping Bolete

Suillus granulatus

Starting30 today

Week's best 31on Saturdayaverage 28by the weekend steady

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

  1. Today3017 Sept
  2. Fri3018 Sept
  3. Sat3119 Sept
  4. Sun2620 Sept
  5. Mon2721 Sept
  6. Tue2722 Sept
  7. Wed2623 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

Starting29 today

Week's best 29on Thursdayaverage 26by the weekend falling

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

  1. Today2917 Sept
  2. Fri2918 Sept
  3. Sat2919 Sept
  4. Sun2420 Sept
  5. Mon2421 Sept
  6. Tue2422 Sept
  7. Wed2423 Sept
Orange Oak Bolete — botanical illustration

Orange Oak Bolete

Leccinum aurantiacum

Starting30 today

Week's best 30on Thursdayaverage 26by the weekend falling

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

  1. Today3017 Sept
  2. Fri3018 Sept
  3. Sat2819 Sept
  4. Sun2420 Sept
  5. Mon2421 Sept
  6. Tue2422 Sept
  7. Wed2423 Sept
Chanterelle — botanical illustration

Chanterelle

Cantharellus cibarius

Starting28 today

Week's best 28on Thursdayaverage 24by the weekend falling

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

  1. Today2817 Sept
  2. Fri2818 Sept
  3. Sat2619 Sept
  4. Sun2120 Sept
  5. Mon2121 Sept
  6. Tue2222 Sept
  7. Wed2223 Sept
Lactarius resimus — botanical illustration

Lactarius resimus

Lactarius resimus

Starting26 today

Week's best 26on Thursdayaverage 22by the weekend steady

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

  1. Today2617 Sept
  2. Fri2618 Sept
  3. Sat2219 Sept
  4. Sun1820 Sept
  5. Mon1921 Sept
  6. Tue2022 Sept
  7. Wed2223 Sept
Saffron Milkcap — botanical illustration

Saffron Milkcap

Lactarius deliciosus

Starting29 today

Week's best 29on Thursdayaverage 26by the weekend steady

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

  1. Today2917 Sept
  2. Fri2818 Sept
  3. Sat2619 Sept
  4. Sun2220 Sept
  5. Mon2321 Sept
  6. Tue2522 Sept
  7. Wed2723 Sept
Bay Bolete — botanical illustration

Bay Bolete

Imleria badia

Starting32 today

Week's best 32on Thursdayaverage 27by the weekend falling

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

  1. Today3217 Sept
  2. Fri3218 Sept
  3. Sat2919 Sept
  4. Sun2420 Sept
  5. Mon2421 Sept
  6. Tue2422 Sept
  7. Wed2623 Sept
Sheathed Woodtuft — botanical illustration

Sheathed Woodtuft

Kuehneromyces mutabilis

Quiet22 today

Week's best 22on Thursdayaverage 20by the weekend falling

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

  1. Today2217 Sept
  2. Fri2218 Sept
  3. Sat2219 Sept
  4. Sun1920 Sept
  5. Mon1921 Sept
  6. Tue1922 Sept
  7. Wed1723 Sept
Field Blewit — botanical illustration

Field Blewit

Collybia personata

Quiet13 today

Week's best 15average 13by the weekend steady

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

  1. Today1317 Sept
  2. Fri1218 Sept
  3. Sat1319 Sept
  4. Sun1120 Sept
  5. Mon1221 Sept
  6. Tue1422 Sept
  7. Wed1523 Sept
Wood Blewit — botanical illustration

Wood Blewit

Collybia nuda

Quiet18 today

Week's best 20average 18by the weekend steady

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

  1. Today1817 Sept
  2. Fri1718 Sept
  3. Sat1819 Sept
  4. Sun1620 Sept
  5. Mon1721 Sept
  6. Tue2022 Sept
  7. Wed2023 Sept
Field Mushroom — botanical illustration

Field Mushroom

Agaricus campestris

Starting26 today

Week's best 26on Thursdayaverage 24by the weekend falling

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

  1. Today2617 Sept
  2. Fri2618 Sept
  3. Sat2619 Sept
  4. Sun2220 Sept
  5. Mon2221 Sept
  6. Tue2322 Sept
  7. Wed2023 Sept
Fairy Ring Champignon — botanical illustration

Fairy Ring Champignon

Marasmius oreades

Starting25 today

Week's best 25on Thursdayaverage 23by the weekend falling

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

  1. Today2517 Sept
  2. Fri2518 Sept
  3. Sat2519 Sept
  4. Sun2120 Sept
  5. Mon2121 Sept
  6. Tue2222 Sept
  7. Wed1923 Sept
Parasol — botanical illustration

Parasol

Macrolepiota procera

Starting29 today

Week's best 29on Thursdayaverage 26by the weekend falling

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

  1. Today2917 Sept
  2. Fri2818 Sept
  3. Sat2919 Sept
  4. Sun2420 Sept
  5. Mon2421 Sept
  6. Tue2422 Sept
  7. Wed2223 Sept
Common Puffball — botanical illustration

Common Puffball

Lycoperdon perlatum

Quiet24 today

Week's best 24on Thursdayaverage 22by the weekend falling

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

  1. Today2417 Sept
  2. Fri2418 Sept
  3. Sat2419 Sept
  4. Sun2120 Sept
  5. Mon2121 Sept
  6. Tue2122 Sept
  7. Wed1823 Sept
Red Cracking Bolete — botanical illustration

Red Cracking Bolete

Xerocomellus chrysenteron

Starting27 today

Week's best 27on Thursdayaverage 24by the weekend falling

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

  1. Today2717 Sept
  2. Fri2718 Sept
  3. Sat2619 Sept
  4. Sun2220 Sept
  5. Mon2221 Sept
  6. Tue2222 Sept
  7. Wed2223 Sept
Bovine Bolete — botanical illustration

Bovine Bolete

Suillus bovinus

Starting25 today

Week's best 25on Thursdayaverage 22by the weekend falling

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

  1. Today2517 Sept
  2. Fri2518 Sept
  3. Sat2419 Sept
  4. Sun2020 Sept
  5. Mon2021 Sept
  6. Tue2022 Sept
  7. Wed2023 Sept
Milk White Brittlegill — botanical illustration

Milk White Brittlegill

Russula delica

Starting27 today

Week's best 27on Thursdayaverage 23by the weekend falling

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

  1. Today2717 Sept
  2. Fri2718 Sept
  3. Sat2519 Sept
  4. Sun2120 Sept
  5. Mon2121 Sept
  6. Tue2122 Sept
  7. Wed2223 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

Starting31 today

Week's best 31on Thursdayaverage 28by the weekend steady

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

  1. Today3117 Sept
  2. Fri3118 Sept
  3. Sat2919 Sept
  4. Sun2520 Sept
  5. Mon2621 Sept
  6. Tue2722 Sept
  7. Wed2723 Sept
Panthercap — botanical illustration

Panthercap

Amanita pantherina

Starting30 today

Week's best 30on Thursdayaverage 26by the weekend falling

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

  1. Today3017 Sept
  2. Fri3018 Sept
  3. Sat2819 Sept
  4. Sun2320 Sept
  5. Mon2321 Sept
  6. Tue2422 Sept
  7. Wed2323 Sept

Orange Birch Bolete

Leccinum versipelle

Starting30 today

Week's best 30on Thursdayaverage 26by the weekend falling

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

  1. Today3017 Sept
  2. Fri3018 Sept
  3. Sat2819 Sept
  4. Sun2420 Sept
  5. Mon2421 Sept
  6. Tue2422 Sept
  7. Wed2423 Sept

Been out in Basel-Stadt? 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 Basel-Stadt in September 2026?

Not yet: conditions in Basel-Stadt in September 2026 are poor, index 33 out of 100. Going on the off chance is not worth it — watch the next few days, a flush can start once the rain arrives.

Which mushrooms are out in Basel-Stadt 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 Basel-Stadt?

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 33 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.