8 Summer Birthday Party Themes Kids Will Love

Summer birthdays in Atlanta are made for unforgettable fun! Sunshine, warm breezes, and those long school-free days make it the perfect time to throw an epic celebration your kiddo will remember forever. Whether you're planning of a splashy pool bash, a backyard blowout, or booking a party venue, we've rounded up 8 sizzling summer birthday themes packed with ideas, games, and local party businesses to help make the magic happen.

And the best part? Planning doesn't have to be stressful!

Confetti Jar makes it easy to discover the best party businesses in Atlanta; from themed backdrops and custom cookies to bounce houses, soft play, and real-life mermaids! Find them all on Confetti Jar! Whatever your theme, Confetti Jar is here to help you plan the ultimate summer birthday bash.

Let’s dive in!

8 Summer Birthday Party Themes for Kids

1. At the Beach

No ocean? No problem! Bring the beach to your backyard with this breezy theme.

Beach Themed Activities & Crafts:

• Dig for treasures and seashells in a DIY sandbox filled with shells, faux pearls, and tiny toys. Here We Grow brings this sand exploration to you with everything you need for the ultimate beach-themed party activity.
• Design seashell picture frames or paint beach rocks.
• Set up a kinetic sandcastle station.
• Play beach ball bowling, limbo, or a towel relay race.
  

Decor & Treats:

• Order beach-themed cookies like flip-flops, surfboards, and starfish. We love these from Hey Cookie Cookie! 
  
• Beach-themed birthday cake from The Purple Sprinkle.
• Create mini beach scenes in glass bowls as table centerpieces.
• Serve tropical fruit kabobs and "sand" pudding cups with graham cracker crumbs.
• Use wave-patterned tablecloths and hang up fishing nets with shells.

"Did someone say summer party? I loved bringing the textures and colors to life with this fun beach theme! Who doesn't love cookies on vacation?" Sarah, Owner, Hey Cookie Cookie

2. Little Sunshine 

For the bright little light of your life, this happy, sun-kissed theme is all smiles.

Little Sunshine Themed Activities & Crafts:

• Play "Pin the Smile on the Sun" and musical chairs to sunny tunes.
• Make sun catchers with yellow/orange tissue paper and contact paper.
• Set-up a sunflower planting station; kids decorate pots and plant their own blooms.

Decor & Treats:

• Yellow and orange everything: balloons, streamers, and tableware.
• Serve lemon cupcakes and custom sunshine sugar cookies.
• Rent a an inflatable waterslide for cool-down fun in the sun.
• Add an ice cream truck or sundae bar. Find the best ice cream trucks and carts on Confetti Jar!

"Celebrating a little ray of sunshine with a first birthday full of color and joy! Our sunshine & rainbow themed cookies are perfect for the most magical summer celebration!" - Sarah, Owner, Hey Cookie Cookie

3. Malibu Party Theme

Think glam meets surf in this girlie Malibu birthday paradise!

Malibu Themed Activities & Crafts:

• Make flamingo crafts or design-your-own pink Barbie dream cars.
• Create a Barbie dress-up station with pink sunglasses, boas, and tiaras.
• Decorate beach balls with stickers and markers.
  

Decor & Treats:

• Treats like Malibu cookies, rice krispy palm trees, and pink lemonade. We love these from The Sweet Street!
  
• Everything pink: hot pink, pastel pink, glittery pink!
• Book a photo booth with oversized sunglasses and palm props. Find your photo booth rental on Confetti Jar!

"A Malibu theme is perfect for a summer birthday! Imagine a dessert table with treats such as covered oreos and rice krispy pops with palm trees, beach balls, and sunglasses!" - Sadaf Ali, Owner, The Sweet Street

3. Under the Sea Birthday Party Theme

Turn your backyard into a mystical ocean adventure full of color and wonder. This Under the Sea party theme for kids is a classic with many options to add unique party activities for various ages.

Under the Sea Activities & Crafts:

• Go on a treasure hunt for hidden gold coins and "gems." The team at Here We Grow can bring this set-up to you and customize for your event!
• Make jellyfish crafts with paper plates and ribbon tentacles.
• Rent an island themed inflatable water slide for older kids and teens!

Decor & Treats:

• Hang bubble balloons and streamers to mimic seaweed.
• Serve Goldfish crackers and "ocean punch."
• Create an underwater photo booth with mermaid tails and goggles. 

5. Mermaid Lagoon

Shimmery, splashy, and oh-so-magical... this theme is made for summer days.

Mermaid Themed Activities & Crafts:

• Invite a real swimming mermaid from Southern Belle Character Company for the ultimate wow factor!
  
• Seashell crown or mermaid tail decorating station.
• Pearl bracelet craft with pastel beads.

Decor & Treats:

• Hire a balloon designer from Confetti Jar to style the perfect mermaid-themed backdrop! We love these designs from Crafted Fete and Bubble and Bash!
• Use a palette of ocean blues, teals, and iridescent accents.
• Serve mermaid tail cookies and glittery cake pops. Confetti Jar has the best Atlanta bakers to make them for you!
• Set up picnic-style seating with underwater-themed games.

"With the hot temperatures, you can never go wrong with a theme tied to water. Crafted Fete had the pleasure of designing a mermaid theme birthday pool party! We did a picnic set for the young guests and there were both land and 'sea' based activities for non stop fun! You can even add onto the day by having a mermaid come join the festivities." - Ashleé, Owner, Crafted Fete

"We love a magical summer mermaid theme with shimmering tails, seashell crowns, and swimming performances that make a splash!" - Becky Walls, Founder, Southern Belle Princess Parties

6. Berry Fun Birthday Party Theme for Littles

Sweet and bursting with charm—this berrylicious party is perfect for littles. Add a first birthday twist for a Berry Fun First Birthday theme!

Berry Fun Activities & Crafts:

• Rent a soft play set-up in red and green with berry-themed designs, like these from Peachy Play Zone.  
  
• Strawberry stamping with sponge cutouts.
• Make-your-own berry smoothie bar.

Decor & Treats:

• Book a custom berry mocktail bar.
• Order dipped strawberries to match your theme!

"This summer, we're serving up some Berry Sweet memories One strawberry smile at a time! At Peachy Play Zone, play meets charm in the most delicious way. Our strawberry-themed soft play experience is bursting with fun colors, softplay luxury, and hands-on fun for your little ones. Whether it's a birthday, a playdate, or just a break from the heat, it's a sweet way to make summer memories that are unforgettable" - Samantha and Darren, Owners, Peachy Play Zone

7. Fin-tastic Shark Party

If your kid is obsessed with sharks, this one’s a must. A shark-themed birthday will be a summer party hit!

Shark Birthday Party Activities & Crafts:

• Check out the Shark Themed Party at Play Street Museum Alpharetta
• Make shark hats from paper and felt.
• Shark ring toss or "Feed the Shark" bean bag toss.
• Shark fact station with trivia and fun facts.

Decor & Treats:

• Hands-on activity like Dip Dye hats! Play Street Museum Alpharetta can create this perfect set-up for your party!
• Blue wave backdrops, shark fins on cupcakes, and ocean-themed drinks.
• Shark photo booth with life-size cardboard cutouts.

"Celebrate with one of our many exciting themes, and just in time for July Shark Month, one of our absolute favorites! Get ready for a jaw-some time filled with fun, laughter, and unforgettable memories. Want to make your party even more special? Add a creative twist with a hands-on craft like our popular Dip Dye, the perfect summer activity!" - Lindsey, Owner, Play Street Museum Alpharetta

8. Wild & Watercolor Nature Party

This is the perfect summery birthday party theme for the nature lover and little artists.

Activities & Crafts:

• Rock and nature painting. Purposeful Play brings the fun by leading nature-
  
  inspired activities just like this!
• Go on a nature scavenger hunt and collect leaves, flowers, and twigs.
• Paint outdoors using nature as inspiration. Find a local businesses from Confetti Jar to bring all of the supplies you need and lead a canvas painting activity!

Decor & Treats:

• Wooden decor, wildflower centerpieces, and hanging art easels.
• Nature-inspired snacks like trail mix and flower shaped cookies.
• Hire a local balloon designer from Confetti Jar to create a custom backdrop and table setting for you!

"Our Painting with Nature parties are all about creativity, fun, and zero stress. We bring all the supplies—and handle the cleanup—so you can focus on making beautiful, nature-inspired art and unforgettable memories." - Lynda Sharp, Owner, Purposeful Play

Now its’ time to start planning the best summer birthday party ever! The first step is choosing your theme. Now, Confetti Jar is here to make the planning easier and so much more fun. Find everything you need right from Confetti Jar.

From the best party places, to fun and unique entertainment, venues, balloon designers, bakeries and more - it's all on Confetti Jar!