Boston Events and Festivals: Marathon, Harborfest and Head of the Charles

United States Massachusetts Boston

Boston’s event calendar is anchored by the world’s oldest annual marathon, the country’s biggest Independence Day festival, and a collegiate rowing event that transforms the Charles River into a 3-mile spectator arena. The city also pours serious energy into St. Patrick’s Day, First Night New Year’s Eve, and a summer-long series of free concerts on the Esplanade. This guide covers the major annual events with dates, locations, and what to expect as a visitor in 2026. For more details, see our Boston weather by month guide.

Boston Events and Festivals: Spring (March to May)

St. Patrick’s Day Parade

The South Boston St. Patrick’s Day Parade runs on the Sunday closest to March 17 (March 15 in 2026). The 3.2-mile route starts at the Broadway MBTA station and heads down East and West Broadway to Andrew Square. Between 600,000 and 1 million spectators line the route, making it one of the largest St. Patrick’s Day celebrations outside Ireland. The parade starts at 1 PM and runs about 3 hours. Arrive by 11 AM to claim a spot, the Red Line to Broadway station is standing-room-only by noon. Public drinking is technically illegal but widely tolerated on parade day, bars along Broadway open at 9 AM. Dress for March cold, average high is 45Β°F (7Β°C) with rain possible. For more details, see our best time to visit Boston guide.

Boston Marathon

The world’s oldest annual marathon (since 1897) runs on Patriots’ Day, the third Monday in April (April 20 in 2026). The 26.2-mile course starts in Hopkinton and finishes on Boylston Street near Copley Square. Approximately 30,000 runners compete and 500,000 spectators line the route. The elite women’s start is at 9:32 AM, elite men at 10 AM, wave starts continue through 11:15 AM. The best spectator spots are the finish line on Boylston Street (arrive by 8 AM for front-row standing), the halfway point in Wellesley (the Scream Tunnel at Wellesley College), and Heartbreak Hill at mile 21 in Newton. The entire city shuts down for the day, streets close, the MBTA runs on an enhanced schedule. Book hotels 6 to 12 months ahead, rooms within 2 miles of the finish line sell out a year in advance at US$500 to 800 per night. For more details, see our things to do in Boston guide.

Harvard Commencement

Harvard University’s commencement exercises take place in Harvard Yard in Cambridge on the last Thursday of May (May 28 in 2026). While the main ceremony is for graduates and invited guests only, the campus fills with visitors and the surrounding Harvard Square area becomes a festival of street performers, food vendors, and crowded bookstores. Hotel rooms across the entire metro area are heavily booked from mid-May through the first week of June due to overlapping graduations at Harvard, MIT, Boston University, Northeastern, Boston College, and dozens of smaller colleges. If you are not attending a graduation, avoid visiting during this window. For more details, see our best neighborhoods in Boston guide.

Boston Events and Festivals: Summer (June to August)

Boston Harborfest

The week-long Harborfest leading up to July 4th is Boston’s largest annual event. Activities include historical reenactments, harbor cruises, Chowderfest (a chowder-tasting competition at City Hall Plaza), and the turnaround cruise of the USS Constitution in Boston Harbor on July 4th. The main event is the Boston Pops Fireworks Spectacular at the Hatch Shell on the Esplanade on July 4th evening. The free concert by the Boston Pops Orchestra starts at 8 PM, fireworks begin around 10:30 PM. The Esplanade opens to the public at 9 AM on July 4th and fills completely by mid-afternoon, 500,000 people attend in a space that comfortably holds 200,000. Security checkpoints screen every person entering the oval. The pragmatic choice is to watch from the Cambridge side of the Charles River (Memorial Drive closes to traffic) or from the Longfellow Bridge, both offer good sightlines without the 12-hour wait in a security pen. Most Harborfest events are free, the chowder tasting costs US$15 for a tasting ticket. For more details, see our where to stay in Boston guide.

Boston Landmarks Orchestra

Free classical concerts at the Hatch Shell on Wednesday evenings from mid-July through late August. The orchestra performs full symphonic works, often with guest soloists from the Boston Symphony Orchestra and New England Conservatory. Concerts start at 7 PM, arrive by 6 PM with a blanket and picnic. The 2026 season typically runs July 15 through August 26. The Hatch Shell is at 47 David G Mugar Way on the Esplanade, a 5-minute walk from the Charles/MGH Red Line station. For more details, see our Boston travel tips guide.

Boston Events and Festivals: Fall (September to November)

Head of the Charles Regatta

The world’s largest two-day rowing event takes place on the third weekend of October (October 17 to 18 in 2026). Over 11,000 athletes from 800 clubs and universities race head-to-head on a 3-mile course from the Boston University Boathouse to the finish line near Harvard Square. Approximately 400,000 spectators line the Charles River banks and bridges. The best viewing spots are the Weeks Footbridge (mid-course, see the power stretch), the Eliot Bridge (final turn before the sprint), and the Anderson Bridge near the finish. The Weld Exhibition at the halfway point has food vendors, rowing gear tents, and beer gardens. The event is free to attend, food and drink run US$10 to 20 per item. Book hotels 3 to 4 months out, Cambridge and Allston fill first. The Red Line from Park Street to Harvard Square is the easiest transit option.

Salem Haunted Happenings

Salem, 16 miles north of Boston, hosts the largest Halloween celebration in the United States throughout October. The city of 45,000 absorbs 500,000 visitors over the month. Events include the Salem Witch Museum (19 1/2 Washington Square North, US$17 adults, open daily 10 AM to 5 PM, extended hours in October), haunted harbor cruises, psychic fairs, and the Grand Parade on the first Thursday evening of October. The MBTA Commuter Rail from North Station to Salem takes 30 minutes (US$8 one-way), but trains are packed on weekends. Driving is a mistake, parking is nonexistent and US$40 to 60 when you can find it. The Salem Ferry from Long Wharf runs 55 minutes each way (US$25 round-trip) and is the most pleasant option. Book Salem hotels 6 to 12 months ahead for October dates, or stay in Boston and day-trip.

Boston Events and Festivals: Winter (December to February)

First Night Boston

Boston’s New Year’s Eve celebration is the oldest of its kind in the United States, running since 1976. Events spread across Copley Square, Boston Common, and the waterfront from 12 PM to midnight. Highlights include ice sculptures along the Greenway, live music performances on multiple stages, a family-friendly early countdown at 7 PM, and the midnight fireworks display over Boston Harbor. Most events are free with a First Night button (US$10), children under 6 are free. The Copley Square ice sculptures are the centerpiece, illuminated from dusk onward. Dress for temperatures around 27Β°F (-3Β°C) with wind off the harbor. The MBTA is free after 8 PM on New Year’s Eve. Hotel rates for December 31 are 3 to 4 times normal winter rates, book by September.

Boston Wine Expo

Held at the Boston Park Plaza Hotel (50 Park Plaza) on a weekend in late February or early March. Over 200 wineries pour samples across two days of grand tastings. Tickets run US$95 to 150 per session depending on early-bird timing. The 2026 dates are typically announced in November 2025 on the event’s website. The expo is a major draw for the hospitality industry but worth knowing about because it books up several downtown hotels. For a complete overview, visit our Boston guide hub page.