Are older women in golden bikinis still sexy? Happy National Bikini Day!
— Vexoria the Sun Eater🐍☀️ (@VexTheSunEater) July 6, 2025
Brazilian Kiwawa doodle for bikini day #ビキニの日 #kfpicasso
— Falcon - ART COMMS OPEN (@BurbDoodles) July 5, 2025
Today is National Bikini Day. The modern version of the two-piece swimsuit by French designer Louis Réard debuted #OTD in 1946. Réard named his creation after the Bikini Atoll where the U.S. was conducting nuclear weapons tests for Operation Crossroads. #NationalBikiniDay
— U.S. Naval Institute (@NavalInstitute) July 6, 2025
It’s National Bikini Day! Whether you’re in a bikini, board shorts, or your favorite cover-up, I hope you’re soaking up the sun and feeling fabulous today! I love those vibrant, carefree beach days - the more umbrellas, the better!
OMG I almost let National Bikini Day get away from me without posting a bikini! I can’t let that happen.
— Diane Marie🌹Southern Charm🍑 (@SouthernDiMarie) July 5, 2025
Good morning. Still grilling and smoking today? It’s Bikini Day, Cherry Pit Spitting Day, Apple Turnover Day, Graham Cracker Day & Workaholics Day. Lots of folks with a lot going on in their lives need our prayers, encouragement and support. You are loved and we are Blessed.
July 5th is National Bikini Day. And here's the most gorgeous woman in Hazzard to ever wear one.
— HazzardNet.com - A Dukes of Hazzard Fan Site (@hazzardnet) July 5, 2025
HAPPY National Bikini day! Let's checkout The First Descendant summer event! // PS5 Pro Enhanced @AmericanNinja HAPPY National Bikini day! Let's checkout The First Descendant summer event! // PS5 Pro Enhanced
Celebrating #NationalBikiniDay with a little Laugh with Archie, Betty and Veronica. https://davescomicheroes.blogspot.com/2025/07/national-bikini-day-2025.html?m=1…
— Dave's Comic Heroes Blog (@DavesComicHero) July 5, 2025
National Bikini Day History
National Bikini Day celebrates the two-piece swimsuit, an icon of swimwear fashion. The day recognizes its socio-cultural impact, its influence on the progress of women's freedom, and its emblematic value in the popular culture. Further, it appreciates the confidence and body positivity such swimsuits can cultivate in women worldwide.
The historical journey of National Bikini Day starts from July 5, 1946, when the skimpy swimsuit named after Bikini Atoll, the site of nuclear testing, was showcased for the first time by French engineer Louis Réard. Skeptical about the reception his creation would receive in a conservative society, Réard couldn't find a regular model; instead, a striptease dancer modeled the revolutionary attire. National Bikini Day, with its focus on the empowerment and liberation associated with the swimsuit, holds special significance in America. Here, the bikini came to be seen not just as a swimsuit, but as an instrument challenging norms and advocating women's rights to fashion and body autonomy.
In America, National Bikini Day is observed by embracing the swimsuit and its symbolic power. Women of all shapes and sizes wear their bikinis with pride, often sharing pictures on social media platforms with hashtags like #NationalBikiniDay. Fashion brands also launch special bikini collections or offer deals to commemorate the day. This lively observance happens every year on July 5th.
National Bikini Day Facts
The bikini was named after Bikini Atoll, a site for nuclear testing in the Marshall Islands. Its creator, Louis Reard, believed the revealing suit would create a shock like that of a nuclear device.
The world's earliest known bikini was uncovered in Sicily's Villa Romana del Casale. The mosaic portrays women exercising in what appears to be two-piece swimwear.
I think everyone looks better in a bikini! - Paris Hilton
A girl in a bikini is like having a loaded pistol on your coffee table – there’s nothing wrong with them, but it’s hard to stop thinking about it. - Garrison Keillor
In the News and Trending in the US for National Bikini Day
National Bikini Day Top Events and Things to Do
The most common way to celebrate this day will obviously be by wearing a bikini, and what better place than the beach or a pool. Several beaches around the country may have related events or parties.
Some brands and stores offer sales on swimwear around this date. Take the opportunity to go bikini shopping at your favorite stores.
Visit a local water park, great place to show off you bikini while having fun!