The World's Biggest Halloween Celebrations and Where to Go

Halloween has travelled a long way from its roots in the Irish and Scottish autumn calendar. Today you can spend 31 October at a city-wide carnival in Northern Ireland, a month-long festival in a Massachusetts town, a night parade down a Manhattan avenue or a fire ritual on a Scottish hill. This guide covers celebrations we could verify from tourism, civic and reference sources, plus two related traditions in Spain and Mexico that are worth knowing about. Dates change every year, so treat everything below as a pattern, not a promise, and check each organiser before you book.

Halloween, Samhain and Day of the Dead: not the same thing

Halloween is the name that comes from "All Hallows' Eve", the night before the Christian feast of All Saints on 1 November. Many sources link it to Samhain, a Celtic festival that marked the end of summer and the harvest, when the boundary between the living and the dead was believed to thin. Tourism pages in Ireland present this story confidently; historians are usually more cautious, so it is fair to say Halloween has Irish and Scottish roots that were later reshaped, notably in North America.

Mexico's Día de Muertos is a different tradition. It is usually held on 1 and 2 November, centres on family altars (ofrendas), cemetery visits and remembering the dead, and was added to UNESCO's Intangible Cultural Heritage list in 2008. We include it because many travellers combine it with the Halloween season, but it is a commemoration, not a costume party.

Ireland and Scotland: where it began

Derry~Londonderry, Northern Ireland. The city's Halloween festival is run by Derry City and Strabane District Council and is billed by its organisers as the largest Halloween event in Europe. In 2025 it ran from 28 to 31 October, with a trail of costumed characters through the walled city (including banshee-themed stops), and its climax is the carnival parade followed by fireworks over the River Foyle. Reports ahead of 2026 suggested a 40th anniversary edition. Why go: the walled city is a dramatic setting, and the whole town joins in.

Dublin, Ireland. Ireland is widely described as the birthplace of Halloween through Samhain, and Dublin adds a literary twist: the Bram Stoker Festival, run by Dublin City Council, celebrates the Dublin-born author of Dracula with gothic-themed shows, tours and family events. It is timed around the October bank holiday weekend; a Discover Ireland listing gives 23 to 26 October for 2026, but check the festival's own site for the programme. If you are planning ahead, Dublin is also a practical base, and you can read more about the city at our Dublin page.

Edinburgh, Scotland. The Samhuinn Fire Festival is a modern re-imagining of an ancient Celtic festival, produced by the Beltane Fire Society, a volunteer-led charity that has held the festival in Edinburgh since 1995. Performers combine fire, drumming and acrobatics to tell the story of the Summer King handing over to the Winter King, with the Cailleach watching over the change. The venue has moved over the years (Calton Hill and Holyrood Park have both been used), tickets must be reserved in advance and have usually gone on sale around the end of September. A listing suggests 31 October 2026 on Calton Hill, which we could not confirm with the organiser, so check beltane.org.

United States: three very different Halloweens

Salem, Massachusetts. The "Witch City" runs Haunted Happenings throughout October: parades, tours, haunted houses, psychic fairs, film screenings and a marketplace. One 2026 guide counts it as the 44th edition, and local media link this year to the city's 400th anniversary, with crowds expected to be very large. On Halloween night a Samhain ceremony is open to all on Salem Common. Officials encourage public transport; the commuter rail from Boston's North Station takes about half an hour, and parking in October is limited.

Sleepy Hollow and Tarrytown, New York. Washington Irving's "Legend of Sleepy Hollow" gives the Hudson Valley its ghost-story identity. Historic Hudson Valley, a non-profit based in Tarrytown, produces seasonal events: storytelling evenings at Sunnyside, magic and twilight programmes at Philipsburg Manor, and the Great Jack O'Lantern Blaze. Note that the Blaze is at Van Cortlandt Manor in Croton-on-Hudson, not in Tarrytown itself, and reports for 2026 give a run from mid-September to early November. Events have limited capacity and often sell out.

New York City. The Village Halloween Parade in Greenwich Village began in the 1970s, started by puppeteer and mask maker Ralph Lee, and is described as the world's largest Halloween parade and the only major nighttime parade in the United States. It reportedly draws tens of thousands of costumed marchers and around two million spectators, with giant puppets and more than fifty bands. Anyone in costume can join the march without registering. It takes place on the night of Halloween along Sixth Avenue; confirm the route and timings on the official site.

Spain and Mexico: related traditions

Galicia, Spain. Samaín is the Galician name for the Celtic autumn festival, and Galician sources describe customs linked to honouring the dead and to folklore beings. Pumpkins appear to be a later addition (turnips came first), and some writers argue that Samaín is not the origin of Halloween. A related autumn custom, the magosto, is a chestnut-roasting gathering still held in north-western Spain. Expect local events, not a single big festival.

Mexico. Día de Muertos, usually 1 and 2 November, can be seen in homes, cemeteries and in public parades in Mexico City. Its roots are described as a mix of Indigenous Mesoamerican and Spanish Catholic traditions. Go to learn and to remember, with respect for families who are mourning.

How to choose and plan

• For the biggest crowds and a carnival feel: Derry~Londonderry or New York.
• For history and folklore: Dublin, Edinburgh or Galicia.
• For a whole-month atmosphere: Salem or the Hudson Valley.
• For a reflective trip: Mexico, at the beginning of November.

Book early, since popular Halloween weekends push up demand for beds in small cities, and look for places beyond the centre if the main area is full. Check official event sites for 2026 programmes, since dates, venues and ticket rules can change. If you are reading this in the final days of October, consider this a map for next year.

Stays can be searched on the portal: browse stays on goaway.pt to look for accommodation and compare options for your dates.