Updated 13 September 2026
Is it Porcini season in Seine-Saint-Denis right now?
Mushroom season in Seine-Saint-Denis, France is looking good right now, with porcini sitting at 50% today. The typical season runs August to November, and we’re in September now
Fruits after warm, humid spells when soil temperatures sit in the mid teens Celsius and a good soaking rain follows a warm period. A typical trigger is heavy rain after several warm days, with flushes appearing roughly one to two weeks later.
Forms mycorrhizal partnerships with conifers (spruce, pine) and broadleaves (oak, beech, birch), so look at the edges and clearings of these woods. It favours mossy banks, well drained acidic soils and the grassy verges of woodland paths rather than dense leaf litter.
Keep fresh caps in a paper bag in the fridge and use within a couple of days, as they spoil and get wormy fast. Slicing and drying is the classic long term method; they also freeze well if briefly sauteed first.
Can be confused with the bitter bolete (Tylopilus felleus), which has a darker net on the stem, pinkish pores when mature and a strongly bitter taste, and with red pored boletes. Avoid any bolete with red or orange pores or flesh that stains strongly blue.
Seine-Saint-Denis is a densely built suburb northeast of Paris on the low, gently rolling plain of the Paris basin. Loess-capped plateaus around Montreuil and Romainville rise to modest wooded hills at Montfermeil and Clichy-sous-Bois, the department’s highest ground near 120 m, while the Canal de l’Ourcq threads the flatter west. Woodland survives mainly in regional forests and parks: the oak-and-hornbeam Foret de Bondy, the canal-side Parc de la Poudrerie, and the wooded meadows of Georges-Valbon and Sausset. On base-rich loam over Brie limestone and gypsum, this chenaie-charmaie gives mushrooms the mycorrhizal partners they need.
The climate is oceanic with a mild continental touch, some 600-650 mm of rain falling evenly year-round and autumn running slightly wetter. Paris’s urban heat island keeps the department a degree or two warmer, pushing the main flush into a mild, damp September and October, while spring can bring morels. With so little wild ground, foraging centres on the regional forests and park woods. Under oak and hornbeam you may find ceps and other boletes, russulas and the odd chanterelle; grassy edges give parasols and field mushrooms, and old stumps flush honey fungus. Industrial history makes caution over polluted soils wise.
FAQ
When is porcini season in Seine-Saint-Denis, France?
In Seine-Saint-Denis, France, porcini season usually runs August to November. The exact start shifts year to year with rain and temperature, so some years they show up early and some years late. Right now (September) the live forecast for Seine-Saint-Denis, France reads 50% and conditions are looking good.
Where do porcini grow in Seine-Saint-Denis, France?
Grows in mycorrhizal partnership with trees, especially under pine, spruce, birch, beech and oak, on well drained soil. Found in conifer and broadleaf woodland and along woodland edges and tracks. They tend to come back to the same kinds of ground year after year, so once you find good cover it is worth checking again. ShroomCast does not share exact spots; it tells you the timing for Seine-Saint-Denis, France so you know when it is worth heading out.
How do I know porcini season has started in Seine-Saint-Denis, France?
Season usually kicks off after a warm spell followed by steady rain, with the first flushes appearing somewhere in the August to November window. The clearest sign is the live forecast lifting off zero into ‘just starting’ or ‘building’. For Seine-Saint-Denis, France it currently sits at 50% and is looking good.
Are porcini out near me right now in Seine-Saint-Denis, France?
Today the porcini forecast for Seine-Saint-Denis, France is 50% and conditions are looking good. That is a live read for the region this September, and it shifts with the weather rather than following a fixed calendar. It tells you if it is worth heading out in Seine-Saint-Denis, France right now.
What should I look for this week for porcini in Seine-Saint-Denis, France?
This week in Seine-Saint-Denis, France the forecast is 50% and looking good. Grows in mycorrhizal partnership with trees, especially under pine, spruce, birch, beech and oak, on well drained soil. Found in conifer and broadleaf woodland and along woodland edges and tracks. The 14-day outlook on the page shows whether conditions are climbing toward a flush or easing off, so you can pick your day.
See the live regional forecast in the ShroomCast app.
This page shows today. The app gives you the full 14-day outlook for your area and all 14 species, so you can pick the right day before you drive out.
Scale: 0-20% very low · 20-40% low · 40-60% moderate · 60-80% high · 80-100% excellent. ShroomCast forecasts fruiting probability from weather, soil, forests and years of observations – a guide, not a guarantee of finds.
ShroomCast forecasts the region and the time of year. It cannot identify mushrooms for you, so confirm any species with a reliable source before eating it.