Updated 13 September 2026
Is it Slippery Jack season in County Dublin right now?
The best time for slippery jack in Ireland is August to November, with the peak normally in the middle of that range. Today they’re at 48% and looking good in County Dublin
It fruits after warm late-summer and autumn rain, typically when day temperatures sit around 10 to 20C and the ground stays damp. A good soaking followed by mild nights usually brings flushes within a week or two.
Strictly associated with pines, so look in conifer plantations and natural pine woods, often on sandy or poor acidic soil. It favours forest edges, paths, grassy verges and young plantations rather than deep shade.
A decent edible with a mild flavour, good in mixed dishes, soups and sauces rather than as the star. Always peel off the slimy cap skin, which can otherwise cause loose stools, and discard the spongy pore layer on older specimens.
Other Suillus boletes such as the larch bolete (Suillus grevillei) and weeping bolete, all of which are also edible, so there are no dangerous poisonous lookalikes. The slimy brown cap, yellow pores and ringed stem set it apart from any toxic gilled mushroom.
County Dublin is mostly low-lying coastal land wrapped around Dublin Bay, with the city giving way to gently rolling farmland in the north and the foothills of the Dublin Mountains rising in the south near Tibradden and Three Rock. The coastline ranges from the rocky headland of Howth to estuaries and sandy flats at Malahide and Bull Island. Woodland is patchy: conifer plantations of spruce and pine cloak the southern hills around Ticknock and Cruagh, while parks and demesnes such as Phoenix Park and St Anne’s hold mature oak, beech and chestnut. Mushrooms turn up along forest tracks, under broadleaf trees in old estates, and on the grassy parkland and dunes near the coast.
The climate is mild and damp, with frequent Atlantic rain and cool summers, though Dublin sits in Ireland’s drier eastern rain shadow and gets less rainfall than the west. Autumn humidity and steady moisture keep the ground reliably damp for fungi well into the season. Foragers here work a mix of city parks, coastal dunes and the wooded southern uplands rather than deep wilderness, so access is easy but ground is shared and picked over. Expect grassland species on the parks and commons and the usual woodland finds in the conifer plantations and old broadleaf estates.
FAQ
How do I know slippery jack season has started in County Dublin, Ireland?
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 County Dublin, Ireland it currently sits at 48% and is looking good.
Are slippery jack out near me right now in County Dublin, Ireland?
Today the slippery jack forecast for County Dublin, Ireland is 48% 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 County Dublin, Ireland right now.
What should I look for this week for slippery jack in County Dublin, Ireland?
This week in County Dublin, Ireland the forecast is 48% and looking good. Grows in conifer woods, almost always with pine, on sandy or poor soil and often along forest tracks and clearings. Common in young plantations and appears in groups. The 14-day outlook on the page shows whether conditions are climbing toward a flush or easing off, so you can pick your day.
Is it mushroom season in County Dublin, Ireland right now?
For slippery jack in County Dublin, Ireland, the typical season is August to November, and today the live forecast reads 48% with conditions looking good 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 slippery jack are likely to be fruiting in County Dublin, 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.
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.