Updated 13 September 2026
Porcini in Jämtland, Sweden: live forecast and 14-day outlook
The best time for porcini in Sweden is August to November, with the peak normally in the middle of that range. Today they’re at 33% and building in Jämtland
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.
Brown bun shaped cap, often greasy when damp. The underside has a sponge of pores, white at first then turning yellowish to olive, never red. The thick bulbous stem is pale with a fine raised white network near the top, and the flesh is white and does not change colour when cut. Smell is pleasant and nutty.
One of the finest edible mushrooms, with a deep savoury nutty flavour. Excellent fresh in risotto, sauces and fried in butter, and it dries very well to concentrate the flavour for stocks and soups.
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.
Jämtland is an inland province built around the great lake Storsjön, where rolling forested hills and river valleys rise westward into the bare alpine fells along the Norwegian border. Between the woods lie open bogs, mires and grazing pastures, with no coastline anywhere in the region. The land is dominated by boreal taiga of Norway spruce and Scots pine, mixed with birch and the mountain birch belt at higher elevations. Spruce stands, mossy pine heaths and damp birch woodland are the prime ground for chanterelles, boletes and other porcini-family mushrooms.
The climate is continental and subarctic, with long cold winters, short cool summers and a brief growing season. Rainfall comes mainly in late summer, and the moist, cool autumn nights suit fungi well even if the season is short. Foraging here means vast, lightly populated forest with generous space and the right to roam, though the harvest window is narrow and weather-dependent. Expect chanterelles and boletes in good years, with the best picking from August into a frost-shortened September.
FAQ
Is it mushroom season in Jämtland, Sweden right now?
For porcini in Jämtland, Sweden, the typical season is August to November, and today the live forecast reads 33% with conditions building this September. So yes or no depends on the day and the weather, which is exactly what the forecast tracks.
Does ShroomCast tell me if a mushroom is safe to eat or identify it for me?
No. ShroomCast only forecasts timing, so it tells you when porcini are likely to be fruiting in Jämtland, Sweden. It does not identify mushrooms, and it cannot tell you whether anything you pick is safe to eat. Always confirm your own identification from a reliable source before eating anything.
How does the live porcini forecast for Jämtland, Sweden work?
We take the usual porcini season for Jämtland, Sweden (August to November) and weigh it against the weather right now and over the last few days. That gives you one live number, today 33% and building, plus a 14-day outlook and a normal-year line to compare against.
When is porcini season in Jämtland, Sweden?
In Jämtland, Sweden, 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 Jämtland, Sweden reads 33% and conditions are building.
Where do porcini grow in Jämtland, Sweden?
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 Jämtland, Sweden so you know when it is worth heading out.
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.