Watermelon Party Theme Ideas: Food, Decor, and More

Nothing says summer fun like a Watermelon Party Theme! Whether you’re planning a vibrant watermelon birthday party for kids or a stylish summer bash, this sweet and colorful theme is sure to impress. From creative watermelon party ideas decoration to adorable watermelon balloons and a show-stopping watermelon cake, we’ve got everything you need for the ultimate watermelon-themed birthday party. Get ready to plan a celebration as refreshing as the fruit itself!

Free Watermelon Party Theme Invitations

Access and easily edit these printable watermelon themed party invitations. Just go to File, Make a copy, then customize as you wish for free!

Watermelon Party Theme Decorations

Here’s a list of fun watermelon-themed party decoration ideas. These are great for birthdays, summer parties, or backyard get-togethers:

Watermelon Balloon Arch or Watermelon Balloons

Create a festive balloon arch with red, green, and white balloons. Add black balloon “seeds” or paper cutouts for a watermelon effect. You can also place watermelon balloons around the party location for a festive touch.

Watermelon Tableware

Use watermelon-themed plates, cups, napkins, and straws. You can even get solid-colored sets in red, green, and black for a subtle theme.

Watermelon Serving Dishes

Add festive flair to your party table with colorful watermelon bowls and plattters for your party food.

Watermelon Slice Banner

Hang a garland of paper or felt watermelon slices over your food table, walls, or entrance.

Watermelon Piñata

Make or buy a watermelon-shaped piñata for fun and decor all in one.

Watermelon Table Centerpieces

Use whole watermelons or carved watermelon bowls filled with fruit or flowers. Add mini umbrellas for a tropical vibe.

Watermelon-Themed Backdrop

Set up a wall with a watermelon-print sheet, wrapping paper, or fabric. Add paper fans or tissue pom-poms in red, green, and pink for texture.

Watermelon Fairy Lights

Find or DIY little string lights shaped like watermelon slices—perfect for evening parties.

Painted Watermelon Jars

Paint mason jars like watermelon slices and use them for utensils, straws, or flower vases.

Watermelon Chalkboard Signs

Use mini chalkboards and decorate them with watermelon designs to label food and drinks.

Watermelon-Themed Photo Booth

Set up a photo area with watermelon props like sunglasses, hats, and slice-shaped signs. Have a decorated watermelon on hand for guests to use as a prop as well.

Watermelon Party Theme Food

Here’s a list of watermelon-themed party food ideas. These are perfect for keeping things fun, festive, and on-theme:

Savory & Sweet Watermelon Snacks

Watermelon Cutouts

Slice watermelon into thin rounds then press out decorative shapes with cookie cutters. Serve on a platter or skewer the cutouts with other fruit.

Watermelon Caprese Skewers

Skewer watermelon cubes, mozzarella balls, and basil. Drizzle with balsamic glaze.

Watermelon Feta Bites

Top watermelon cubes with crumbled feta and a mint leaf—simple and fancy!

Watermelon Pizza

Slice a round watermelon like a pizza and top with yogurt, berries, granola, or chocolate chips.

Watermelon Salsa

Dice watermelon, red onion, cilantro, jalapeño, and lime juice. Serve with tortilla chips.

Watermelon Fries & Dip

Cut watermelon into fry shapes and serve with a creamy yogurt-lime dip.

Watermelon-Looking Foods (Creative Twists!)

Watermelon Party Cake (No-Bake Version)

Ingredients:

1 whole seedless watermelon (small to medium)

2 cups whipped cream or whipped topping (or coconut whipped cream for dairy-free)

Fresh fruit for decoration

Instructions:

Cut off both ends of the watermelon so it can stand upright.

Carefully slice off the rind, shaping it into a smooth cake-like cylinder.

Slice into rounds.

Pat the outside with paper towels to remove excess moisture (helps the whipped topping stick).

Spread whipped cream evenly on top of each layer and stack the slices.

Spread the whipped topping over the sides.

Decorate with fresh fruit.

Refrigerate for 30 minutes before serving to firm it up.

Slice like a regular cake!

Watermelon Cake (Baked Version)

Decorate a round cake with pink/red frosting, chocolate chips as “seeds,” and green outer icing.

Here are some other fun watermelon-looking party foods:

Watermelon Skewers

Make watermelon fruit kabobs with other fresh fruit on wooden skewers.

Drinks & Treats

Watermelon Slushies

Blend frozen watermelon juice with lime juice and ice for a refreshing treat.

Watermelon Punch

Serve in a carved watermelon with lime, mint, and sparkling water or juice.

Watermelon Popsicles

Stick a popsicle stick into a watermelon slice, as pictured below.

Watermelon Ice Cubes

Freeze small cubes of watermelon to chill drinks without watering them down.

Watermelon Sorbet

Super refreshing and easy to make—just blend, freeze, and serve in scoops.

Watermelon Party Theme Games and Activities

Here’s a list of watermelon-themed party games and activities that are fun for all ages and easy to pull off:

Watermelon Seed Spitting Contest

Classic and hilarious! See who can spit a real watermelon seed the farthest. (Have a designated “spit zone” for safety!)

Watermelon Bowling

Use a small round watermelon as the ball and set up empty soda bottles as pins.

Watermelon Eating Contest

No hands allowed! Great for laughs and messy fun—have napkins ready!

Watermelon Scratch Off Cards

Whoever reveals the watermelon slice on their card wins a prize!

Pin the Seed on the Watermelon

A twist on “Pin the Tail on the Donkey.” Blindfold players and have them try to place black seeds (stickers or cutouts) on a large poster of a watermelon slice.

Watermelon Ring Toss

Paint or decorate bottles like watermelon slices and toss rings made from glow sticks, rope, or foam rings.

Watermelon Bingo

Designed for up to 24 people, this classic party game may be played repeatedly for multiple prizes and fun.

Watermelon Relay Race

Have teams carry watermelon slices (or whole mini melons) using spoons or on their heads for a relay-style race.

Watermelon Craft Station

Set up a table for kids (or adults) to make watermelon fans, masks, or paint mini watermelon slices on rocks or paper plates.

Watermelon Piñata

Fill a watermelon-shaped piñata with watermelon candies, fruit snacks, or summer toys.

Watermelon Toss

Use beanbags or small red balls as “seeds” to toss into watermelon-decorated buckets.

Watermelon Chalk Art Contest

Let guests draw giant watermelon-themed pictures with sidewalk chalk.

Watermelon Party Theme Party Favors

Here’s a list of adorable and budget-friendly watermelon party favors your guests will love:

Edible Favors

Watermelon Lollipops

Individually wrapped and super cute!

Watermelon-Flavored Gummies

Put them in mini treat bags or jars.

Watermelon Sugar Cookies

Decorated like watermelon slices, wrapped in clear bags with ribbon.

Watermelon Jelly Beans

Offer mini bags of watermelon jellybeans for a sweet treat.

Watermelon Salt Water Taffy

Package this cute and edible gift in bags or jars for gift-giving.

Useful Favors

Watermelon Lip Balm or Hand Sanitizer

Look for themed packaging or make your own labels.

Mini Watermelon Soaps or Bath Bombs

Smell great and look adorable.

Watermelon Scented Candles

Give the gift of watermelon fragrance.

Watermelon Lotion

Keep hands moisturized with creamy, scented lotion.

Watermelon Keychains

Felt or rubber keychains that are cute and useful.

Watermelon Seed Packets

Hand out real watermelon seeds in custom envelopes with a label that reads “Plant your own sweetness!”

Fun Extras

Watermelon Sunglasses

Great photo props and take-home gifts.

Watermelon Headbands

Bring a smile to the faces of your guests with this whimsical accessory.

Watermelon Stickers

Packaged in little envelopes or tied with string.

Watermelon Slime (for kids)

Slime in pink in a cute little jar.

Watermelon Hair Bows or Bracelets

Great for kids and teens.

Watermelon Squeeze Toys or Stress Balls

Fun, squishy, and themed perfectly.

Watermelon Beach Balls

Perfect for tossing around and playing with for party fun.

Watermelon Pens

Cute and practical for any age.

Free Printable Party Planner

Organizing a party takes planning. Whether you are planning a watermelon party theme, a sunflower-themed party, a lemon-themed party, an apple-themed party, dahlia-themed party, a chicken-themed party, an elephant-themed party, a butterfly-themed party, a birthday party, or a tea party, here’s a FREE monthly planner you can use to plan your sunflower-themed party or any other event. Use it throughout the year to keep daily, weekly, and monthly tasks organized. Since it’s undated, you can print out a new planner each year or anytime you need a fresh place to put your ideas. Get it here!

Get the sunflower planner!

Have fun planning a watermelon-themed party, and may all of your party-planning endeavors meet with great success!

 

Lisa Mitchell is a wife, mom, and school librarian who likes to host parties. When the weather allows, she enjoys entertaining outdoors on the grounds of her family’s small Pacific Northwest farm. To learn more about what this website has to offer, click on over to the Welcome page.