Samhain - the Gaelic beginning of winter, the festival of the dead, and the source of Halloween
Samhain is the Gaelic beginning of winter, observed on October 31-November 1 in Ireland, Scotland, and the Isle of Man. The festival marks the end of the harvest season and the beginning of winter, and is the traditional time when the boundary between the worlds of the living and the dead is thinnest.
Cultural celebrationPublished October 18, 2026
- Observed in
- Where observed in 2 countries
- When
- Oct - Nov
- Frequency
- Same date every year
- Days off
- 0 days - cultural observance only
- Public status
- Cultural observance - not a legal public day
Samhain is the Gaelic beginning of winter, observed on October 31-November 1 in Ireland, Scotland, and the Isle of Man. The festival marks the end of the harvest season and the beginning of winter, and is the traditional time when the boundary between the worlds of the living and the dead is thinnest. Observed as a Celtic cultural festival and a major Wiccan sabbat; also the source of the modern Halloween.
The one-line summary
A Gaelic beginning-of-winter festival observed on October 31-November 1 in Ireland, Scotland, and the Isle of Man, marking the end of the harvest season and the traditional time when the boundary between the worlds of the living and the dead is thinnest. Observed as a Celtic cultural festival and a major Wiccan sabbat; also the source of the modern Halloween. One of the four Gaelic seasonal festivals alongside Beltane, Imbolc, and Lughnasadh.
Origin
Samhain is one of the four Gaelic seasonal festivals, with roots in pre-Christian Celtic religion. The festival marked the end of the harvest season and the beginning of winter, and was associated with the thinning of the boundary between the worlds of the living and the dead. The name Samhain means "summer's end" in Old Irish, reflecting the Celtic division of the year into two seasons (summer and winter) rather than four.
The festival was widely observed throughout the Celtic world, with regional variations in Ireland, Scotland, Wales, Cornwall, the Isle of Man, and Brittany. The festival was associated with several deities, including the Morrigan (the war goddess associated with death and sovereignty), the Dagda (the father god of Celtic mythology), and the spirits of the dead. The festival was a time of feasting, divination, and the lighting of sacred bonfires, and was understood to require careful observance to protect against the dangerous spirits released on the night.
The thinning of the veil
The central belief of Samhain is that the boundary between the worlds of the living and the dead is thinnest on the night of October 31. The spirits of the dead are believed to return to the world of the living on this night, and the living are expected to welcome them with food, fire, and offerings. The belief is the basis for many Samhain traditions, including the setting of a place at the dinner table for the dead, the preparation of soul cakes (small cakes given to the poor in exchange for prayers for the dead), and the lighting of candles in the windows to guide the spirits home.
The thinning of the boundary was also a time of danger: the spirits released on Samhain were not always friendly, and the living were required to take precautions. The most common precautions were costumes (originally intended to disguise the wearer from the spirits), the lighting of bonfires (intended to ward off evil spirits and to provide warmth and light for the returning dead), and the offering of food to the spirits (intended to appease them and prevent harm).
How it is observed
Samhain is observed in two main ways: as a Gaelic cultural festival in Ireland, Scotland, and the Isle of Man, and as a major Wiccan and Neo-Pagan sabbat. The Gaelic cultural observance includes the lighting of bonfires, the telling of stories of ancestors, the preparation of traditional foods (especially colcannon, barmbrack, and apple-based dishes), and the visiting of burial grounds. The Wiccan observance includes ritual magic, the dumb supper (a silent meal with a place set for the dead), and the honouring of ancestors.
Modern Samhain celebrations in Ireland, Scotland, and the Isle of Man have grown significantly in recent decades. The Derry Halloween in Northern Ireland, organized by the local council, is one of the largest Halloween celebrations in Europe, drawing an estimated 100,000 participants and spectators. The Puck Fair in Killorgin, County Kerry, is an ancient festival that retains some Samhain elements, including the lighting of a bonfire and the crowning of a wild goat as king.
In the Wiccan and Neo-Pagan tradition, Samhain is one of the four Greater Sabbats (alongside Beltane, Yule, and Ostara) and is considered the most important of the year. The festival is a time for honouring the dead, for divination and scrying, and for the silent supper with the spirits. The Wiccan Samhain ritual typically includes the building of a sacred fire, the recitation of verses, and the preparation of a dumb supper with a place set for each of the honoured dead.
The connection to Halloween
The modern Halloween is a Christian and folk adaptation of the Gaelic Samhain. After the Christianization of the Celtic world, the church attempted to absorb Samhain into the Christian calendar by establishing All Saints' Day (November 1) and All Souls' Day (November 2) on or near the same dates. The folk traditions of Samhain - costumes, divination, the thinning of the boundary between worlds - were preserved in the secular Halloween and in the religious All Saints' Day observance.
The folk traditions of Samhain migrated to North America with the Irish and Scottish diaspora in the 19th century, where they merged with English and German folk traditions (such as All Hallows' Eve and the carving of jack-o'-lanterns) to produce the modern American Halloween. The modern Halloween is a secular festival with strong Samhain roots, but most of its religious and folk meaning has been replaced by a focus on costumes, candy, and community celebration. For more on the secular observance, see the Halloween brief.
Related observances
Samhain is one of four Gaelic seasonal festivals, each marking a transition in the agricultural calendar. The other three are Beltane (May 1, the beginning of summer), Imbolc (February 1, the beginning of spring), and Lughnasadh (August 1, the beginning of autumn). The four festivals are widely observed in Celtic cultural circles and in Wiccan and Neo-Pagan traditions. The festival is also related to the Christian feasts of All Saints' Day and All Souls' Day, observed on November 1 and 2.
Sources
- en.wikipedia.org, Samhain.
- britannica.com, Samhain.
- history.com, History of Halloween.
- duchas.ie, Schools' Collection (Irish folklore).