There’s so much pressure to plan a Pinterest-Perfect party these days, but your kid’s summer birthday party doesn’t have to be expensive or overly complicated to plan. Afterall, all they really want is to have a blast with their besties.
Skip the overpriced trampoline parks that everyone is doing, or the chaotic trip to the water park, and give them exactly what they want for their birthday bash, without spending a fortune, or tons of time on over-the-top party setups.
Here’s my short list of incredible summer birthday party ideas for kids, that can all be planned for around $100.
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Backyard Summer Birthday Party Activities Kids Actually Love
Planning to host a kids summer birthday party in your backyard? Here are a few summer birthday party themes and activity ideas you can pull off easily, and affordably.
Just add cake (and maybe a pizza).
Field Day Fun
Remember field days? They were the BEST. Recreate that fun, carefree experience for your kid’s summer birthday party!
Here are classic field-day activities to consider to create this fun summer birthday theme in your own backyard:
- tug-o-war
- parachute games (Here’s a great list of parachute games to pick from)
- obstacle course
- egg-on-a-spoon race
- potato sack race
- wheel barrow race
Pick 3-5 of these activities to play with your kiddos (find all the field day supplies you need for the games you want to play) and then…
Be sure to take a break for refreshments and cake!
Superhero Training Camp
This backyard summer birthday party idea is perfect for the active boy or girl obsessed with the DC or Marvel Universe.
Let them channel their inner superhero with a training academy birthday party. This one involves a little DIY action (if you’re game)!
Here’s what you’ll need:
- Superhero capes and masks (duh!)
- Mix and Match “Agility Skill” Activities (pick 2-3 to fit your time/budget/space):
- Zipline kit (to channel your inner Super Man)!
- Ninja ropes ladder (want to scale buildings like Spider Man?!)
- Pool noodles and yard stakes to create your DIY obstacle course for Superhero agility training.
- Ninja Twister spin set
- Stepping stones
I’ve rounded up great sets of Superhero capes, masks, and agility activity supplies. Shop these Superhero party supplies on my Amazon storefront.
And… feel free to add more activities to make this your own. The whole idea is to create a training camp experience that ties in with skills a Superhero might need.
Backyard Birthday Carnival
A backyard birthday carnival is such a fun summer kids party theme and surprisingly easy to pull together with a few fun games and budget-friendly decorations.
Set up a selection of 3-5 classic carnival games and activities (most of which can be homemade) around your backyard, including:
- Knockdown can game: it’s super easy to DIY with upcycled cans or even Solo cups and a few bean bags. Set it up on a picnic table or folding table
- Ring toss: DIY with old soda or wine bottles, a fresh coat of paint, and plastic rings.
- Duck pond matching game: Grab an inflatable pool and a few dozen rubber ducks. Write numbers 1-12 on the bottom of your ducks and repeat (two ducks should have the same number). Give the kids a net and give them three trys to match a pair of ducks.
- Balloon darts: Set up a cork board and attach several inflated balloons to it using sticky dots. Grab a pack of darts and let the kids take turns trying to pop as many balloons as they can.
- Face painting station: Can you, or someone you know draw?! Set-up a little face painting station.
A few fun extras to really make this theme complete: a cotton candy station, red and white striped streamer decorations (to make it look like the big top!), and of course… balloons!
Find done-for-you carnival games and extras on my Amazon.
Backyard Birthday Adventure
Have a kid who loves to use his or her imagination outdoors? This backyard birthday adventure is the perfect summer party theme!
Here’s what you need to create a fun, adventure-themed scavenger hunt birthday party.
- First, they need a mission! Create or buy scavenger hunt bingo cards for your little adventurers. Their task is to complete their Bingo card first to win.
- Make their mission more fun by incorporating:
- Mini backpacks that they can each decorate with stickers or puffy paint
- Binoculars, so they really feel legit!
- Survival snacks (think trail mix, mini water bottles, granola bars)
- Last but not least, don’t forget your prize(s) for the Bingo winner!
Grab all these scavenger hunt party supplies on my Amazon storefront.
Outdoor Summer Birthday Party Themes for Kids
Next up are several outdoor summer birthday party themes that work in any outdoor space.
Night at the Movies
A trip to the movie theater for 5+ kids really adds up…heck it adds up for just two people!
Create an epic night at the movies summer birthday party right in your own backyard or public outdoor space.
Here’s what you’ll need:
- A projector and stand (You can DIY your own, or grab one from my supply list below)
- A DIY “concession stand” with fresh popcorn, fizzy drinks, and a selection of candy boxes (you can grab these at the Dollar Store!)
- A bunch of cozy spaces for outdoor movie viewing (no need to buy anything extra, use what you’ve got!)
- A must-see double feature! (Rent a few new releases on Prime, or pick a couple of your kiddo’s favorites)
Here’s where you can grab all the movie night supplies you’ll need to create a cozy movie theater experience right at home.
And if you REALLY want to push this summer birthday party over the top… make it a sleepover!
Garden Tea Party
Have a kiddo who loves to dress up? Pretends she’s a super sophisticated adult? I know I did!
Plan an adorable and budget-friendly summer tea party in the garden for her and her friends.
Here’s what you do:
- Collect mismatched cups and saucers for all the kids to use. You can always find a ton of them at any thrift store.
- Serve miniature treats, like biscuits, cookies, and finger sandwiches on a few fancy tiered displays (again, grab them at the thrift store!)
- Set your tables with coordinated table linens in soft pastels and small floral arrangements
- A fun extra is to get adorable hat and glove sets for all the girls, so they really feel like little ladies
Find all the supplies I’d grab for a beautiful tea party setup on my Amazon storefront.
Outdoor Art Party
The biggest downside to art parties is the mess. But, it’s summer! Take the party (and the mess!) outdoors and have fun with it! Especially if you have a kid with a love for creativity, maybe a budding Picasso, give them the art party they’ll never stop talking about.
Here’s how to set this up:
Pick your canvas:
- Option 1: Giant canvas or craft paper roll (all the kids collaborate on one giant art piece)
- Pros: very affordable and interactive
- Cons: kids can’t take home their art (unless you cut it up)
- Option 2: Individual canvases that each kid decorates on their own
- Pros: everyone gets to leave with their own art piece
- Cons: more expensive and more supplies are needed
Get your gear:
- Paint in a variety of colors
- Painting palletes (or paper plates)
- Variety of paint brushes in different sizes and shapes
- Sponges to create unique texture
- Artist smocks (protect their clothes + a party favor to take home)
- Drop cloth or plastic tablecloths (optional for protecting any work surface)
This is a fun, creative summer birthday party idea I would have LOVED if I were a kid. Grab everything you need for either option in my art party supply list.
Water-Themed Summer Birthday Party Ideas for Kids
Is your kid begging to go to the water park this year? Bring the water park to them! From pool parties, to DIY water parks, here are three ideas for recreating that water park experience in your own backyard.
DIY Water Park Party
The waterpark is such a memorable experience, but let’s face it… it’s PRICEY. Especially if your kiddo wants to invite all of their classmates to their birthday bash. Instead, this water-themed summer birthday party idea is a great way to have the waterpark fun, without the price tag.
Here’s a few fun ideas for bringing the water park experience to you (for hundreds less)!
- Jumbo slip and slide, or side-by-side racer so kids can compete in head-to-head races
- Splash pad or inflatable sprinkler
- Super soakers for some team-based water games
I’ve rounded up the best water park party supplies you can pick and choose from to create your experience.
Plan a few organized races or team games to get everything started and then let your kids just… be kids!
Epic Pool Party
Next up on this list of summer birthday ideas is a poolside party. This idea obviously only works if you have access to a pool (sorry to burst your bubble for those hoping for a pool party for under $100 with NO pool – I’m not a magician!).
If you ARE blessed by the pool gods, then you’ve got an instant party set-up that just needs a few accessories to make it a celebration.
Here are the essentials:
- A collection of hilarious pool floaties (trust me). Think giant pizza slices, Doritos bag… even a giant fake floating turd (they actually make this)
- 2-3 entertaining pool games or activities
- water blasters
- classic beach balls
- diving toys
- volleyball or basketball
- inflatable slide
Find all of these pool party supplies and more on my Amazon list.
Add a few fun extras like sunnies, or water goggle favors, and you’ve got yourself one epic pool partay! Just doon’t forget the sunscreen.
Under the Sea Party
OK, next up on our summer birthday party ideas list… Under the Sea! This idea could be combined with the pool party ideas above, but here are some additional mermaid-specific elements to up the “under the sea” theme.
For the pool:
- Mermaid pool floats or tails
- Irridescent mermaid beach balls
- Diving buried treasure chest
More out-of-pool activities:
- Set up a mermaid bracelet-making station where your party guests can craft their own treasures
- Create a buried treasure experience with sand instead of water! Just buy an under the bed storage bin, fill it with sand and buried treasure linked above for the kids to dig through with their sand tools.
- Another fun under-the-sea party activity is a mermaid slime-making station. Here’s what you’ll need to make Ocean slime.
Grab all these “under the sea” themed summer birthday party supplies on my Amazon shop!
Cheap Summer Birthday Party Food Ideas for Kids
You don’t need a huge catering budget to feed a group of hungry kids at a summer birthday party. The easiest summer party foods for kids are simple, easy to grab, and work well outdoors.
Focus on a few fun snacks, one main food item, and drinks that help the party feel special without creating extra stress.
Build-Your-Own Hot Dog Bar
Hot dogs are one of the easiest and most affordable birthday party foods for summer. Set out toppings like shredded cheese, ketchup, mustard, pickles, and crushed chips so kids can customize their own plates.
DIY Pizza Picnic
Order a few large pizzas and spread picnic blankets around the backyard for an easy, low-stress meal setup that still feels fun and intentional for a summer birthday party.
Individual Snack Cups
Pre-fill cups with popcorn, pretzels, fruit, or chips so kids can grab snacks while running between games and activities. This also keeps outdoor birthday parties a little less messy.
Popsicles Instead of Cake
Skip an expensive custom cake and create a popsicle station instead. Mix colorful popsicles in galvanized tubs or coolers for an easy dessert that also helps everyone cool down.
Lemonade Drink Station
A simple lemonade station instantly makes a backyard birthday party feel more themed. Add sliced lemons, striped paper straws, and a handwritten sign for an easy setup that looks cute in photos.
Easy Decoration Ideas for Kids Summer Birthday Parties
You don’t need over-the-top decorations to make a backyard summer birthday party feel special. A few simple focal points can completely transform your space while still keeping the setup realistic and budget-friendly.
Create a Simple Balloon Backdrop
There are so many easy DIY balloon decorations you can make that don’t take a ton of time or effort. Balloon centerpieces, columns, or even flowers add a little fun and whismy to your summer birthday party. Just be sure to keep them out of direct sun which can cause them to pop.
Hang Photos or Paper Decorations From a Fence
Backyard fences are perfect for easy party decorating. Tape up photos, streamers, paper fans, or themed signs to fill empty space without needing expensive rentals or backdrops.
Add Colorful Tablecloths and Matching Plates
One of the easiest ways to make a party feel coordinated is simply choosing a color palette and repeating it across the table setup, balloons, and serving pieces.
Set Up a Backyard Birthday Photo Spot
Create a simple photo backdrop area using balloons, a birthday banner, and a colorful fringe backdrop, so kids have a fun place to take pictures during the party.
Grab the Printable Summer Birthday Party Planning Checklist
Whether your kid loves water games, backyard movie nights, scavenger hunts, or carnival-style parties, you don’t need a huge budget to create a summer birthday they’ll actually remember. A few simple decorations, fun activities, and easy food ideas can go a long way toward making the day feel special without creating extra stress for you.
And if you want help keeping everything organized, grab my printable party planning checklist to map out your decorations, food, activities, and timeline before the party day chaos begins.