Fall guide
Fall weekends shift from year to year. The detailed guides show the three-year pattern and clearly separate a working estimate from an official date.
Research last reviewed July 30, 2026. “Estimated” means the working window is based on recurrence and is not an organizer announcement.
Sag Harbor · Fall Festival
Confirmed · 2026HarborFest celebrates Sag Harbor’s maritime identity with whaleboat races, food, crafts, music and family programs around Long Wharf and Marine Park.
Montauk · Fall Festival
Confirmed · 2026Montauk Fall Fest combines the annual clam chowder contest with food, drinks, music and family activities on the Town Green.
Southampton · Fall Festival
Estimated · 2026SouthamptonFest is a village-wide fall weekend of food, music, art, family activities and shopping centered around Agawam Park.