When is National Ugly Sweater Day 2026, and how do you celebrate it at work or school?
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Well hey there, holiday-calendar hero! You want the date, and you want it now. Fair enough — it’s a Friday, it’s coming up fast, and there’s a sweater out there with your name on it. National Ugly Sweater Day 2026 is Friday, December 18 — the third Friday of December, the rule both National Today and National Day Calendar use for the day. Wear your tackiest knit to work, school or a party that day; if you still need one, browse ugly Christmas sweaters on Amazon or kids’ ugly Christmas sweaters.
Short answer: National Ugly Sweater Day 2026 is Friday, December 18. It always falls on the third Friday of December, so the date moves between December 15 and 21: December 17 in 2027, December 15 in 2028 and December 21 in 2029. Celebrate it with a sweater lunch, a quick contest, a classroom craft or a comfy festive sweatshirt.
- 2026 date: Friday, , one week before Christmas.
- The rule: the third Friday of December, so always a Friday between December 15 and December 21.
- Easy way to remember it: it’s usually the Friday three weeks after Black Friday — 22 days after US Thanksgiving (our own count for 2011-2035).
- Started: National Day Calendar dates the day to 2011; the first ugly Christmas sweater party was in 2002, near Vancouver, Canada.
- UK version: Save the Children’s Christmas Jumper Day is Thursday 10 December 2026.
When is National Ugly Sweater Day in 2026, 2027 and beyond?
National Ugly Sweater Day is Friday, December 18, 2026, then Friday, December 17, 2027, Friday, December 15, 2028 and Friday, December 21, 2029 — the same four dates National Today lists. We worked the rule out for more years and lined it up with US Thanksgiving, and a handy pattern fell out.
| Year | National Ugly Sweater Day | US Thanksgiving | Days after Thanksgiving | Days before Christmas |
|---|---|---|---|---|
| 2025 | 22 | 6 | ||
| 2026 | 22 | 7 | ||
| 2027 | 22 | 8 | ||
| 2028 | 22 | 10 | ||
| 2029 | 29 | 4 | ||
| 2030 | 22 | 5 |
Why does the date of National Ugly Sweater Day change every year?
National Ugly Sweater Day moves because it’s pinned to a weekday — the third Friday of December — not to a fixed date. The earliest it can fall is December 15 and the latest is December 21. Thanksgiving moves the same way (the fourth Thursday of November), which is why the two stay locked together: in every year from 2011 to 2035 we checked, National Ugly Sweater Day came 22 days after Thanksgiving, except in the years Thanksgiving fell on November 22 (2012, 2018, 2029 and 2035), when it came 29 days after. So if you know when Black Friday is, count three Fridays ahead and you’ve usually got it.
Is National Ugly Sweater Day the same as Christmas Jumper Day in the UK?
No — Christmas Jumper Day is the UK charity version, run by Save the Children, and in 2026 it’s on Thursday 10 December, eight days before the US day. Save the Children UK’s Christmas Jumper Day page says the event has run since 2012, has raised more than £42 million, and suggests a donation of typically £2 for adults and £1 for children. It’s also relaxed about the date:
If another day works better for your school, workplace or group, go for it — it’s your Christmas Jumper Day.
That’s good advice on this side of the ocean too: if December 18 is a day off or a big deadline for your team, hold your ugly sweater day on another Friday.
What is National Ugly Sweater Day, and who started it?
National Ugly Sweater Day is a just-for-fun observance where people wear their tackiest Christmas sweaters to work, school and parties on the third Friday of December. National Day Calendar says ugly Christmas sweater lovers created it in 2011, without naming one founder; the party trend behind it started in 2002 at a house party near Vancouver, Canada.
- 1989: Chevy Chase’s Clark Griswold wears holiday knits in National Lampoon’s Christmas Vacation, which National Today and The Saturday Evening Post both credit with making the look famous.
- 2002: friends Chris Boyd and Jordan Birch throw the first Ugly Christmas Sweater Party in Coquitlam, British Columbia, according to Wikipedia’s Christmas jumper article (citing CBC, HuffPost and Global News). The party later moved to Vancouver’s Commodore Ballroom, where The Saturday Evening Post says it grew to a crowd of about a thousand.
- 2011: National Ugly Christmas Sweater Day is created for the third Friday of December (National Day Calendar), and Tipsy Elves is founded in San Diego.
- 2012: Save the Children UK starts Christmas Jumper Day, and UglyChristmasSweater.com is founded (National Today’s timeline says 2013).
- 2013: Tipsy Elves pitches its ugly sweaters on Shark Tank on December 13, 2013 (more in our ugly sweater brand comparison).
- 2026: Christmas Jumper Day on Thursday 10 December in the UK, National Ugly Sweater Day on Friday, December 18 in the US.
Is National Ugly Sweater Day a real holiday?
National Ugly Sweater Day is a real, widely listed observance, but it isn’t a federal or public holiday: nothing closes, and nobody gets the day off. It shows up on calendar sites such as National Today and National Day Calendar, and schools, offices and brands pick it up as a dress-up day. You’re celebrating it the moment you put the sweater on.
How many people actually want to wear an ugly sweater?
About a quarter to a third of Americans are keen: 23% of Christmas celebrants told the American Christmas Tree Association in 2025 they’re enthusiastic about wearing an ugly Christmas sweater, and 31% of US adults told Statista in 2022 they were likely to wear one. That means most of any office or class isn’t fussed — so keep the day optional.
| Survey | Who was asked | What they found |
|---|---|---|
| American Christmas Tree Association, October 29-30, 2025 | 1,005 US adults who celebrate Christmas (margin of error ±3.1%) | 23% enthusiastic about wearing an ugly Christmas sweater — more than the 21% excited about visiting Santa |
| Statista, December 2022 | US adults | 13% very likely and 18% somewhat likely to wear an ugly holiday sweater that season (31% together); 68% not at all likely |
| YouGov, December 2017 | US adults (YouGov Omnibus) | Would wear a holiday sweater to the airport to board a flight early: 36% definitely, 36% would consider it, 28% definitely not. “Definitely”: 43% of women vs 29% of men, 43% of 18-24-year-olds vs 30% of those 55 and over |
The American Christmas Tree Association’s executive director, Jami Warner, summed up its 2025 poll this way: The enthusiasm in this survey makes clear the magic of Christmas is stronger than ever.
Our takeaway for planners: a big, happy minority will go all in, and everyone else will join if joining is easy.
How do you celebrate National Ugly Sweater Day at work?
Keep it short, optional and office-safe: an ugly sweater lunch or a 10-minute sweater vote on Friday, December 18 is plenty. Here are easy ways to do it:
Honestly, we love that a whole day exists just for wearing the silliest thing in your closet. Calendars don’t usually get that much right.
- Sweater lunch: cookies or a potluck at noon, sweaters optional, and a festive pin or Santa hat counts as taking part.
- A quick contest: three or four awards and a show-of-hands vote — our ugly sweater contest categories, rules and prizes has ballots ready to print, plus ugly sweater contest trophies if you want a prize.
- Office-safe sweaters: skip drinking jokes and innuendo — run anything borderline through our office-safe ugly sweater check.
- Easy-on options: ugly sweater vests and cardigans slip over work clothes and come off when the room gets warm.
- A charity angle: borrow Save the Children’s idea and invite a small, optional donation to a cause the team picks.
- Hosting after work instead? Our 2026 ugly sweater party checklist counts back from December 18 for invitations, food and games.
How do you announce National Ugly Sweater Day to the team?
Send a short, friendly note about two weeks ahead, so people have time to find or make a sweater. You can copy this one:
Friday, December 18 is National Ugly Sweater Day! Wear your tackiest holiday sweater — or a festive pin, a Santa hat or just something red and green, totally optional — and join us at noon for cookies and a 10-minute sweater vote.
For a remote or hybrid team, ask people to wear the sweater on camera at the Friday meeting. Our office guide also has a free blue-and-white winter meeting background for Teams, Zoom and Google Meet.
How do you celebrate National Ugly Sweater Day at school?
Most schools run it as a dress-up day with a classroom vote or craft, and in 2026 the date — Friday, December 18 — is the last Friday before Christmas, so check your district calendar in case winter break starts sooner. Ideas that work for every age:
- Classroom contest: categories like “most sparkly” and “most creative”, with the classroom ballot from our contest guide.
- Decorate-your-own: a plain sweatshirt and felt shapes, or a paper-sweater cutout for little ones — our no-sew DIY guide shows which glues are kid-friendly.
- Sweatshirts count: a printed holiday sweatshirt or T-shirt is just as festive, and our warm-weather guide has options for hot classrooms and sunny states.
- Kids’ sizes: look for kids’ Christmas sweatshirts in soft cotton and check that brand’s own size chart.
How do you make ugly sweater day sensory-friendly for neurodivergent kids and adults?
Let comfort win: a soft, tagless sweatshirt with a printed design counts just as much as a scratchy knit. Innovative Therapy Center, an occupational therapy clinic in Uniontown, Ohio, puts it simply: The goal is participation — not discomfort.
Its tips for a sensory-friendly ugly sweater day, from December 8, 2025:
- Choose soft, tagless sweaters or sweatshirts with printed designs instead of glued-on decorations.
- Layer a soft cotton shirt underneath to block scratchy fabrics.
- Let the child help pick the sweater, for comfort and a sense of control.
- Pack a safe backup shirt in case the sweater gets to be too much.
- Make it yourself, so you control the textures and seams.
- Adults: check seams, collars and textures that could bother you during the workday.
Teachers can help by saying any festive top, hat or pin counts
. Our guide to ugly sweater day for kids who hate itchy fabric has an itch map and a printable note for the teacher.
When should you order an ugly sweater for December 18, 2026?
Order by Black Friday weekend — Thanksgiving is Thursday, November 26, 2026 and Cyber Monday is November 30 — so there’s time to swap a size before Friday, December 18. Custom knitted sweaters need longer: about November 17-19 for most makers (see our custom photo sweater guide). Left it late? Our 2026 order-by dates show how late each shipping option still works, and a plain sweatshirt plus a glue gun is a one-evening fallback.
What should you check before National Ugly Sweater Day?
Run this 30-second check the week before:
- Date: Friday, December 18, 2026 — or another Friday if that suits your school or team better.
- Optional: a pin, hat or festive top counts, so nobody is left out.
- Office-safe: no drinking jokes or innuendo at work or school.
- Comfort: a soft layer underneath, and a backup shirt for kids.
- Lights: battery pack closed, spare batteries out of little hands.
- Fit: sized from that brand’s own chart — see our plus-size guide for 4X-6X.
- Delivery: ordered by Black Friday weekend (November 27-30).
And put next year in the calendar now: Friday, December 17, 2027.
Off you go, holiday-calendar hero: circle Friday, December 18, pick a sweater that feels as good as it looks, and make it easy for everyone else to join in.
Sources and further reading
- National Today: National Ugly Sweater Day — third Friday of December; dates 2026-2029; 2002 party and timeline
- National Day Calendar: National Ugly Christmas Sweater Day — third Friday in December; created in 2011
- Wikipedia: Christmas jumper — Chris Boyd and Jordan Birch, first party 2002 in Coquitlam, BC, later the Commodore Ballroom
- The Saturday Evening Post: Common Threads — The History of the Ugly Christmas Sweater — Einav Rabinovitch-Fox, Dec 19, 2025
- Save the Children UK: Christmas Jumper Day — Thursday 10 December 2026; since 2012; GBP 42M+ raised
- American Christmas Tree Association: holiday survey — Nov 25, 2025; 23% enthusiastic about ugly sweaters, 1,005 adults
- Statista: likeliness of wearing ugly holiday sweaters, US 2022 — 13% very, 18% somewhat, 68% not at all likely
- YouGov: Most Americans open to wearing a festive holiday sweater if it means boarding a flight early — Paul Hiebert, Dec 14, 2017
- Innovative Therapy Center: National Ugly Sweater Day and sensory challenges — Dec 8, 2025; occupational therapy tips
- Wikipedia: Tipsy Elves — founded 2011; Shark Tank
- Wikipedia: UglyChristmasSweater.com — founded 2012
- National Capital Poison Center: button battery ingestion — severe damage in 2 hours; hotline 800-498-8666
Questions and answers
Is National Ugly Sweater Day always on a Friday?
Yes. National Ugly Sweater Day is the third Friday of December, so it always falls on a Friday between December 15 and December 21. In 2026 that’s Friday, December 18.
When is National Ugly Sweater Day 2027?
National Ugly Sweater Day 2027 is Friday, December 17, 2027 — the third Friday of December. After that come Friday, December 15, 2028 and Friday, December 21, 2029.
Is National Ugly Sweater Day a federal holiday?
No. National Ugly Sweater Day is a just-for-fun observance listed by calendar sites such as National Day Calendar, which dates it to 2011. Schools and offices stay open; people simply wear their ugly sweaters that day.
What can I wear on ugly sweater day if I don’t have an ugly sweater?
A festive sweatshirt, a holiday T-shirt, a Santa hat or a Christmas pin all count. You can also decorate a plain sweatshirt in an evening with felt shapes and fabric glue — our no-sew DIY guide shows how.
Is Christmas Jumper Day the same as National Ugly Sweater Day?
They’re cousins. Christmas Jumper Day is Save the Children’s UK fundraiser, on Thursday 10 December in 2026, while National Ugly Sweater Day is the US day on the third Friday of December — Friday, December 18, 2026.