When Is National Ugly Sweater Day? Date, History and Ideas
National Ugly Sweater Day, also called National Ugly Christmas Sweater Day, falls on the third Friday of December. In 2026 that is Friday, December 18. It grew out of a charity sweater event and is now an easy excuse to wear your loudest holiday sweater at work, at school or at home.
When is National Ugly Sweater Day in 2026?
National Ugly Sweater Day is held on the third Friday of December, so the exact date changes a little every year. In 2026, the third Friday falls on December 18. Because the day follows the third-Friday rule rather than a fixed calendar date, it is worth checking each year before you plan anything around it. The timing is a big part of its appeal. December 18 lands a week before Christmas, right in the middle of the season for office parties, school events and family get-togethers, so it fits naturally into plans many people are already making. Some workplaces simply ask everyone to wear a holiday sweater that Friday, while others turn it into a lunch, a team photo or a casual contest. Schools sometimes make it a dress-up day before the winter break. If you want to join in, mark Friday, December 18 on your calendar now and decide early whether you will celebrate at work, at school, with family or with friends.
Where did National Ugly Sweater Day come from?
The day has a simple, friendly backstory. It traces back to a 2011 ugly sweater charity event in Vancouver, Canada, held to raise money for a friend's medical treatment. The idea of dressing up in the tackiest sweater you could find for a good cause caught on, and it spread from that one event into an annual day marked on the third Friday of December. The sweaters themselves have a longer history. Holiday sweaters covered in Christmas motifs such as reindeer, snowflakes and Santa became a common sight in the 1980s. Over time, ugly sweater parties turned those designs into a joke that everyone was in on, and wearing them on purpose became a tradition of its own. The day keeps that spirit today: it is not about looking polished, it is about choosing the brightest, busiest sweater you own and having fun with the people around you. That mix of nostalgia and humor is why it moves so easily between offices, classrooms and family homes.
How can you celebrate at work or school?
Work and school celebrations go best when they are easy to join. The simplest plan is a sweater day: everyone wears a holiday sweater on Friday, December 18, and you take a group photo before lunch. If your team enjoys a little competition, add a casual contest with a few simple categories such as funniest, most colorful and best group look, and let people vote by a show of hands. Our guide on how to win an ugly sweater contest has ideas that get votes without much effort. Keep jokes work-friendly so everyone feels comfortable, and skip decorations that shed glitter or tinsel around the office. Pinned-on extras such as felt shapes or small bells add fun and come off easily at the end of the day. For schools, a sweater day before the winter break gives students something to look forward to, and a class photo makes a nice keepsake. Just remind families early so nobody has to hunt for a sweater the night before.
How can families and couples join in?
Families and couples can turn the day into a small tradition. The easiest option is matching sweaters, which read instantly as a set in photos, and our matching Christmas sweaters make it simple to dress everyone in one coordinated look. If matching feels like too much, choose a shared color story instead, such as red and green or navy and cream, so the family looks connected even with different designs. Kids can join in too: our all-over-print sweaters come in Youth sizes 2XS–XL as well as Adult S–5XL, so parents and children can wear the same style. Couples might pick sweaters that complete each other or share one joke across two designs, and our couples ugly sweater ideas have more pairings to try. Then plan a quick family photo by the tree or at the front door, and end the evening with hot cocoa and a holiday film night. It is a low-effort way to make the third Friday of December something everyone remembers.
How do you get ready in time for December 18?
The main thing is to order early. In the US, knit sweaters typically arrive in 5–6 business days, which includes 3 business days to prepare your order. All-over-print sweaters typically arrive in 13–18 business days, so they need a longer lead time. These are estimates, not guaranteed dates, so plan to order in early December, and earlier still if you choose all-over-print. Orders over $89.95 ship free within the US, and every order is covered by our 30-day return policy. Once your sweater is home, try it on and check the fit, then decide on any extras you want to add, such as removable pins or clip-on lights. After the celebration, take the extras off and care for your knit sweater properly: machine wash cold and lay flat to dry. Our guide on how to wash and store a real knit Christmas sweater walks through each step, so the sweater is ready for next year's sweater day.
Mark Friday, December 18, 2026 on your calendar and keep the plan simple. First, pick your sweater early so it is ready in time, especially if you choose all-over-print. Second, plan the party, contest or photo you want to share with coworkers, classmates or family. Third, share the look: take the group photo, swap sweater stories and enjoy one of the most relaxed days of the holiday season.
