Costco Closed Holidays 2024. Everything to know about costco's holiday hours, including if costco will be open on thanksgiving, christmas eve, christmas, new year's eve and new year's day. Holidays, so it’s important to plan ahead and shop in advance!

31) while costco warehouses don’t open on new year’s day, the retailer’s doors will be open to customers the day before—new year’s eve. New year’s day, easter sunday, memorial day, independence day, labor day, thanksgiving day, and christmas day.