Is It Too Early for Porcini in County Mayo?
🇮🇪 County Mayo, IrelandLive forecast

Porcini forecast for County Mayo, Ireland

4%
Updated: 16 October 2026

Porcini: just starting.

County Mayo
Temperature, 14 days
9°C

Average 12°, from 9° to 15°

3 Oct16 Oct
Rain, 14 days
70mm

Rainy days: 10. Wettest: 14 Oct

3 Oct16 Oct
Trees for Porcini
575woods
Pine58%
Sitka spruce29%
Birch12%
Other trees1%

Share of wood area by the tree porcini grows with in County Mayo

Height of the woods
25–150m

where most of them lie

0–200 m
97%

Is it Porcini season in County Mayo right now?

Porcini usually come up in County Mayo from August to November, and right now they’re at 4% and just starting.

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.

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.

Check around the bases of host trees and along sunlit forest edges, returning to productive spots a few days apart through the flush. Cut or twist the stem cleanly, slice each cap to check for maggots, and take only young specimens with white firm flesh.

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.

County Mayo is a wild, windswept corner of Ireland’s Atlantic west, where the drumlin-studded waters of Clew Bay, the cone of Croagh Patrick and the Nephin Beg and Mweelrea mountains give way to vast open blanket bog. Much of the interior is treeless moorland and peatland, broken by the large lakes of Lough Conn and Lough Mask and a deeply indented, exposed coastline. Native woodland is scarce here, surviving mainly as small pockets of oak, birch, hazel and rowan in sheltered valleys and along lake shores, while much of the timber is in Coillte conifer plantations of Sitka spruce. Look for mushrooms at woodland edges, in mossy birch and oak stands, and on the grassy, well-grazed pastures and bog margins that cover so much of the county.

Mayo has a cool, hyper-oceanic climate and is one of the wettest parts of Ireland, with frequent rain, high humidity and strong Atlantic winds throughout the year. Mild winters and damp, cloudy summers keep the ground moist and create excellent conditions for fungi over a long season. Expect a landscape better suited to grassland and bog fungi than to deep woodland species, with waxcaps thriving on the old unimproved pastures and hill grazing for which the west of Ireland is known. The remoteness rewards those willing to walk, but always tread carefully on wet bog and respect that much land is grazed and privately held.

FAQ

Where do porcini grow in County Mayo, Ireland?

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 County Mayo, Ireland so you know when it is worth heading out.

How do I know porcini season has started in County Mayo, Ireland?

The start moves from year to year with the weather, and the first flushes usually appear somewhere in the August to November window. The clearest sign is the live forecast lifting off zero into ‘just starting‘ or ‘building’. For County Mayo, Ireland it currently sits at 4% and is just starting.

Are porcini out near me right now in County Mayo, Ireland?

Today the porcini forecast for County Mayo, Ireland is 4% and conditions are just starting. That is a live read for the region this October, and it shifts with the weather rather than following a fixed calendar. It tells you if it is worth heading out in County Mayo, Ireland right now.

What should I look for this week for porcini in County Mayo, Ireland?

This week in County Mayo, Ireland the forecast is 4% and just starting. 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 in the app shows whether conditions are climbing toward a flush or easing off, so you can pick your day.

Is it mushroom season in County Mayo, Ireland right now?

For porcini in County Mayo, Ireland, the typical season is August to November, and today the live forecast reads 4% with conditions just starting this October. 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 County Mayo, Ireland. 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 County Mayo, Ireland work?

Every mushroom has its own machine-learning models, trained on years of mushroom records and calibrated for each region. Every day they read the weather of the last three weeks in County Mayo, Ireland: temperature, rain, humidity, soil temperature and moisture. Together with the time of year and the kind of woods and soil there, that gives the chance of porcini fruiting today. Right now it is 4% and just starting. The full 14-day outlook is in the app.

When is porcini season in County Mayo, Ireland?

In County Mayo, Ireland, 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 (October) the live forecast for County Mayo, Ireland reads 4% and conditions are just starting.

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.

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