21+ Beach Themed Costume Ideas For Adults

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When it comes to themed parties and Halloween costumes, the beach theme is a fantastic and fun-filled choice that never goes out of style. Dressing up in a beach-themed costume is an imaginative and creative way to bring the charm and relaxation of a seaside vacation to any gathering. Whether it’s a party at the peak of summer or the heart of winter, a beach costume will surely inject a breath of fresh air.

Here are some exciting ideas for a beach-themed costume for your next party or Halloween event:

24 Best Beach-Themed Costume Ideas

1.) Lifeguard On Duty Women's Costume

$34.99  in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Feel the sun's warmth as you patrol the sandy shores in this Lifeguard On Duty Women's Costume. With its vibrant red swimsuit, whistle, and "Lifeguard" emblazoned across the chest, you'll exude both style and safety-consciousness as you keep watch over the beach.

2.) Men's Baywatch Beach Lifeguard Costume

$69.99
$59.99
 in stock
Fun.com
as of June 21, 2024 6:30 am

Get ready to run in slow motion across the beach with this Men's Baywatch Beach Lifeguard Costume. Complete with the iconic red shorts, yellow tank top, and official Baywatch logo, you'll be the epitome of beachside heroism.

3.) Baywatch Sexy Lifeguard Costume

$64.99  in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Turn heads and save lives with this Baywatch Sexy Lifeguard Costume. Featuring a daringly cut swimsuit, high-cut legs, and a red buoy accessory, you'll be ready to rescue hearts as you patrol the shoreline.

4.) Beachside Betty Costume for Adults | Women's 1920s Costumes

$49.99  in stock
Fun.com
as of June 21, 2024 6:30 am

Step back in time and embrace the vintage charm of the 1920s with the Beachside Betty Costume. With its fringed flapper dress, sequined headband, and pearl necklace, you'll be the belle of the beachside soirée.

5.) Sunbathing Sailor Costume for Men

Halloweencostumes.com

Sail away into relaxation with the Sunbathing Sailor Costume for Men. This nautical-inspired ensemble includes a striped tank top, sailor hat, and sunglasses, perfect for soaking up the sun on deck.

6.) Mermaid Mafia Men's Costume | Unique Halloween Costumes

$49.99
$39.99
 in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Make a splash at any costume party with the Mermaid Mafia Men's Costume. Combining the elegance of a mermaid tail with the swagger of a mobster, this unique ensemble is sure to turn heads and reel in compliments.

7.) Disney Little Mermaid Premium Ariel Mermaid Dress for Women

$99.99
$79.99
 in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Transform into the enchanting Ariel with the Disney Little Mermaid Premium Ariel Mermaid Dress for Women. With its shimmering fabric, seashell bodice, and flowing fins, you'll feel like you're under the sea in no time.

8.) Women's Glamour Skeleton Mermaid Costume

$59.99  in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Embrace your inner siren with the Women's Glamour Skeleton Mermaid Costume. Featuring a skeletal twist on the classic mermaid look, complete with a shimmering tail and bone-embellished bodice, this costume is both eerie and elegant.

9.) Women's Plus Size Deluxe Disney Ursula Costume

$99.99  in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Rule the ocean depths with the Women's Plus Size Deluxe Disney Ursula Costume. With its dramatic tentacles, sequined bodice, and villainous flair, you'll be the ultimate sea witch at any costume event.

10.) Tacky Traveler Costume for Adults

$29.99  in stock
Fun.com
as of June 21, 2024 6:30 am

Embrace your tourist tendencies with the Tacky Traveler Costume for Adults. Complete with a Hawaiian shirt, camera, and socks with sandals, this costume is perfect for anyone seeking a humorous take on vacation fashion.

11.) Hawaiian Beach Hat

$9.99
$7.99
 in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Shade yourself in tropical style with the Hawaiian Beach Hat. Featuring a wide brim adorned with vibrant flowers, this hat is the perfect accessory for any beach day or luau celebration.

12.) Squishmallow Maritza Cactus Inflatable Beach Ball

$19.99
$9.99
 in stock
Fun.com
as of June 21, 2024 6:30 am

Add some prickly fun to your beach day with the Squishmallow Maritza Cactus Inflatable Beach Ball. Whether you're playing games in the sand or lounging in the water, this adorable inflatable will bring a touch of desert charm to your seaside adventures.

13.) Exclusive Women's Perfect Pin Up Sailor Costume

$34.99  in stock
Fun.com
as of June 21, 2024 6:30 am

Channel your inner pin-up girl with the Exclusive Women's Perfect Pin Up Sailor Costume. With its retro-inspired design, anchor accents, and flirty silhouette, this costume is guaranteed to make waves at any event.

14.) Men's Deckhand Sailor Costume | Sexy Sailor Costume

$49.99  in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Set sail for adventure with the Men's Deckhand Sailor Costume. Featuring a fitted shirt, sailor collar, and striped pants, this sexy sailor ensemble is perfect for commanding attention on the high seas.

15.) Vintage Sailor Men's Costume

$39.99  in stock
Fun.com
as of June 21, 2024 6:30 am

Navigate the waters of style with the Vintage Sailor Men's Costume. With its classic navy blue uniform, sailor hat, and anchor accents, this costume captures the timeless appeal of nautical fashion.

16.) Crab Costume for Men

$69.99  in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Get ready to scuttle across the sand with the Crab Costume for Men. With its oversized claws, red shell, and googly eyes, this costume is perfect for anyone looking to add a pinch of humor to their beach attire.

17.) Squid Adult Costume

Halloweencostumes.com

Make a tentacled transformation with the Squid Adult Costume. With its swirling tentacles, bulbous eyes, and sinister grin, this costume is sure to make a splash at any costume party.

18.) Women's Sequined Seahorse Costume

$49.99
$14.99
 in stock
Fun.com
as of June 21, 2024 6:30 am

Sparkle and shine like the treasures of the sea with the Women's Sequined Seahorse Costume. With its shimmering sequins, flowing fins, and delicate details, this costume is a dazzling tribute to the ocean's most majestic creatures.

19.) Adult Man Eating Inflatable Shark

Halloweencostumes.com

Dive into hilarious hijinks with the Adult Man Eating Inflatable Shark Costume. Featuring a fearsome shark with a comical twist, this inflatable costume is guaranteed to devour the competition at any costume contest.

20.) Adult Great White Shark Jawesome Costume Hat

Halloweencostumes.com

Make a fintastic fashion statement with the Adult Great White Shark Jawesome Costume Hat. With its toothy grin and menacing eyes, this oversized hat is the perfect accessory for anyone looking to add some bite to their beach look.

21.) Pineapple Costume for Adults

Fun.com

Stand tall and sweet with the Pineapple Costume for Adults. With its yellow color, green leaves, and playful design, this costume is a tropical treat for any costume party or beach gathering.

22.) Coconut Cocktail Drink Adult Costume

$59.99  in stock
Halloweencostumes.com
as of June 21, 2024 6:30 am

Get ready to sip in style with the Coconut Cocktail Drink Adult Costume. With its oversized coconut cup, straw, and fruity garnish, this costume is the perfect way to quench your thirst for fun at any beach bash.

23.) Green Seedless Grapes Costume

$44.99
$39.99
 in stock
Fun.com
as of June 21, 2024 6:30 am

Go green in style with the Green Seedless Grapes Costume. With its plush design, leafy hat, and grape cluster accents, this costume is a deliciously quirky choice for any fruit-themed event.

24.) Blue & Green Flip Flop Adult Costume | Funny Costumes

Fun.com

Step into summertime silliness with the Blue & Green Flip Flop Adult Costume. With its oversized design, vibrant colors, and playful detailing, this costume is sure to flip-flop its way into the hearts of partygoers everywhere.


The Classic Lifeguard:

Embody the spirit of the Baywatch team with this timeless look. Dress up in a red one-piece swimsuit or trunks, complete with a whistle around your neck, a pair of sunglasses, and even a faux rescue buoy for added authenticity.

The Vintage Bather:

Take a trip back in time with a vintage bathing suit from the 1920s, featuring striped one-piece suits, swim caps, and parasols. You can also opt for a 50’s pin-up style bathing suit with a high waist and halter neck for that retro feel.

The Surfer:

Capture the coolness of beach culture with a surfer costume. Don a wetsuit or a pair of board shorts, carry a miniature surfboard, and don’t forget the sun-bleached ‘surfer-dude’ wig to complete the look.

The Mermaid or Merman:

Transform into mythical sea creatures with a shimmering mermaid tail skirt or a trident-wielding merman. Sequin tops, seashell accessories, and colorful wigs can all add to the fantastical charm of these costumes.

The Sailor:

Dressing up as a sailor is a fantastic beach-themed costume idea. Navy blue and white-striped tops, sailor caps, and white pants will get you looking ship-shape in no time. Add an anchor-themed accessory to make a strong nautical statement.

The Sunburned Tourist:

Add a comedic twist to your beach-themed costume by dressing up as a sunburned tourist. Wear a brightly colored Hawaiian shirt, oversized straw hat, and board shorts, and slather on some pink or red face paint to mimic a sunburn. Don’t forget the camera around your neck and the inflatable pool floaty.

The Beach Ball:

Get creative and make a statement by going as a giant beach ball. This can be done by painting or buying a round inflatable suit with the classic beach ball design. This costume is sure to be a hit!

The Sea Creature:

Whether it’s a crab, starfish, seahorse, or shark, becoming a sea creature for the day can be a lot of fun. Use makeup and craft supplies to bring your chosen creature to life.

The Tropical Fruit:

What’s a beach without tropical fruits? Dress up as a pineapple, coconut, or even a bunch of grapes to bring a juicy twist to the party.

When it comes to beach costumes for Halloween and themed parties, the possibilities are as vast as the ocean itself. Remember, the key is to have fun and embody the joy, relaxation, and refreshing spirit of the beach in your costume. So, pick your theme, add your personal flair, and get ready to make waves at your next party!

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