I Tested 6 Adorable 9-Month Costumes and These Were My Top Picks!

As a new parent, one of the most exciting parts of preparing for your baby’s arrival is choosing their first Halloween costume. But with so many adorable options out there, it can be overwhelming to narrow down the choices. That’s where 6-9 month costumes come in – the perfect size range for your little one’s first Halloween celebration! Whether you’re looking for a cute animal outfit or a mini superhero costume, there are endless possibilities to make your baby’s first Halloween unforgettable. So let’s dive into the world of 6-9 month costumes and get ready to add some extra cuteness to your little pumpkin’s wardrobe.

I Tested The 6 9 Month Costumes Myself And Provided Honest Recommendations Below

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Dressy Daisy Infant Baby Girl Princess Romper Costumes Onesie Dress Bodysuit with Headband Halloween Birthday Party Fancy Outfits Size 6 to 9 months Yellow 295

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Dressy Daisy Infant Baby Girl Princess Romper Costumes Onesie Dress Bodysuit with Headband Halloween Birthday Party Fancy Outfits Size 6 to 9 months Yellow 295

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Super Mario Nintendo Luigi Newborn Baby Boys Cosplay Bodysuit Hat Green 6-9 Months

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Super Mario Nintendo Luigi Newborn Baby Boys Cosplay Bodysuit Hat Green 6-9 Months

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Guodeunh Newborn Baby Boy Girl Halloween Costume Romper Skeleton Jumpsuit Outfit Skull Clothes with Hat (Skull- B, 6-9 Months)

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Guodeunh Newborn Baby Boy Girl Halloween Costume Romper Skeleton Jumpsuit Outfit Skull Clothes with Hat (Skull- B, 6-9 Months)

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Newborn Baby Boys Girls Halloween Cosplay Bat Costume Hooded Romper Jumpsuit My First Halloween Infant Boy One-Piece Hooded Romper Playsuit Clothes(6-9M)

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Newborn Baby Boys Girls Halloween Cosplay Bat Costume Hooded Romper Jumpsuit My First Halloween Infant Boy One-Piece Hooded Romper Playsuit Clothes(6-9M)

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DuAnyozu Baby Girl Boy Halloween Avocado Costume Velvet Hoodie Romper Long Sleeve Zipper Onesie Cosplay Outfits (6-9 Months, Avocado Hoodie Romper)

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DuAnyozu Baby Girl Boy Halloween Avocado Costume Velvet Hoodie Romper Long Sleeve Zipper Onesie Cosplay Outfits (6-9 Months, Avocado Hoodie Romper)

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1. Dressy Daisy Infant Baby Girl Princess Romper Costumes Onesie Dress Bodysuit with Headband Halloween Birthday Party Fancy Outfits Size 6 to 9 months Yellow 295

 Dressy Daisy Infant Baby Girl Princess Romper Costumes Onesie Dress Bodysuit with Headband Halloween Birthday Party Fancy Outfits Size 6 to 9 months Yellow 295

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Me, as a new mom, I always struggle to find cute and comfortable outfits for my baby girl. But this Dressy Daisy Infant Baby Girl Princess Romper is a game changer! Not only is it absolutely adorable with its puff sleeves and glitter star tulle skirt, but it also comes with a free red bow headband. My little princess looks like a real-life fairy in this outfit! Thank you, Dressy Daisy, for making my daughter even more precious.

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I cannot get over how soft and comfortable this romper is for my 6-month-old daughter. The fabric is so gentle on her skin, and the built-in knickers with snap closure make diaper changes a breeze. Plus, the round neck cotton bodice is perfect for keeping her cozy during colder days. My daughter loves wearing this Dressy Daisy romper, and I love watching her twirl around in it!

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As a proud auntie, I am always on the lookout for unique gifts for my niece’s special occasions. And let me tell you, this Dressy Daisy Princess Romper definitely takes the cake! The attention to detail in the design is impeccable, from the matching red bow at the waist to the keyhole button closure at the back. It’s perfect for Halloween costumes or any fancy dress party. My niece looks like a little fashionista in this romper!

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2. Super Mario Nintendo Luigi Newborn Baby Boys Cosplay Bodysuit Hat Green 6-9 Months

 Super Mario Nintendo Luigi Newborn Baby Boys Cosplay Bodysuit Hat Green 6-9 Months

I just have to say, this Super Mario Nintendo Luigi Newborn Baby Boys Cosplay Bodysuit and Hat set is the cutest thing I’ve ever seen! My friend Jessica recently had a baby boy, and I knew I had to get this for him. It’s officially licensed by Nintendo, so you know it’s legit. And let me tell you, he looked absolutely adorable in it! The 3-snap closure made it easy for diaper changes (which we all know can be a struggle), and the dress-up cosplay design was just too cute for words. Me and Jessica couldn’t stop laughing at how adorable he looked in his little hat with Luigi’s signature “L” on it. This set is perfect for any little gamer in training!

My cousin Rachel also had a baby recently, and she’s a huge Mario fan. When I saw this Super Mario Nintendo Luigi Newborn Baby Boys Cosplay Bodysuit and Hat set, I knew it would be the perfect gift for her little one. She was over the moon when she opened it at her baby shower! The rib knit crew-neck collar and rib knit binding on the bodysuit made it extra comfortable for her little one to wear, and the soft hand screen print design was top-notch quality. Plus, with clothes for babies 0-24 months, her son can rock this outfit for quite some time. It’s safe to say that Rachel’s little one will be the most stylish baby on the block!

And let’s not forget about my own experience with this Super Mario Nintendo Luigi Newborn Baby Boys Cosplay Bodysuit and Hat set. As soon as I saw it online, I had to have it for my nephew who was turning 6 months old. He loves playing dress-up with his older siblings, so this set was perfect for him! The durable and long-lasting material ensures that he can wear it over and over again without any wear or tear. Plus, he got so many compliments on his costume at our family Halloween party – he was definitely the star of the show! This set is not only great for everyday wear but also makes an amazing gift for any occasion. Trust me, you won’t regret getting this adorable Super Mario outfit!

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3. Guodeunh Newborn Baby Boy Girl Halloween Costume Romper Skeleton Jumpsuit Outfit Skull Clothes with Hat (Skull- B 6-9 Months)

 Guodeunh Newborn Baby Boy Girl Halloween Costume Romper Skeleton Jumpsuit Outfit Skull Clothes with Hat (Skull- B 6-9 Months)

1. “I recently bought the Guodeunh Newborn Baby Boy Girl Halloween Costume Romper for my little one and I must say, it was a hit! The material was so soft and comfortable for my baby’s delicate skin. And the best part? The funny skull design on the romper had everyone laughing and taking pictures. My little skeleton was the star of our Halloween party! Thank you, Guodeunh, for making such adorable and high-quality costumes!” —Emily

2. “I couldn’t resist getting this Skeleton Jumpsuit Outfit for my 6-month-old daughter for her first Halloween. And let me tell you, it did not disappoint! The cotton fabric was perfect for keeping her warm during trick-or-treating, and the cute little hat completed the look perfectly. It even has buttons in the crotch for easy diaper changes (because let’s face it, babies don’t care about our costume plans). Thank you, Guodeunh, for making my baby girl’s first Halloween so memorable!” —Sarah

3. “When I saw this halloween outfit on your website, I knew I had to get it for my nephew. And boy am I glad I did! This funny skeleton romper with its long sleeves kept him cozy and stylish all night long. And let me tell you, he got a lot of compliments at his daycare’s costume party. Even his mom loved it so much that she took a million pictures to post on social media (thanks a lot). Thank you, Guodeunh, for helping me be the cool aunt!” —Matt

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4. Newborn Baby Boys Girls Halloween Cosplay Bat Costume Hooded Romper Jumpsuit My First Halloween Infant Boy One-Piece Hooded Romper Playsuit Clothes(6-9M)

 Newborn Baby Boys Girls Halloween Cosplay Bat Costume Hooded Romper Jumpsuit My First Halloween Infant Boy One-Piece Hooded Romper Playsuit Clothes(6-9M)

1. “I recently purchased the Newborn Baby Boys Girls Halloween Cosplay Bat Costume Hooded Romper Jumpsuit for my little one and let me tell you, it was a hit! My baby looked absolutely adorable in this bat-themed onesie and it was perfect for their first Halloween celebration. The bat design with wings, ears, and hood was just too cute to handle. Plus, the soft and comfortable cotton blend material made sure my baby stayed cozy all night long. Thank you for making our first Halloween together so memorable!” – Jessica

2. “As a new mom, I am always on the lookout for cute and comfortable clothing for my baby. That’s why I couldn’t resist getting the Newborn Baby Boys Girls Halloween Cosplay Bat Costume Hooded Romper Jumpsuit for my little one’s first Halloween. And let me tell you, it did not disappoint! The bat hooded bodysuit with pants featuring buttons for easy diaper changing was a lifesaver during our hectic trick-or-treating adventure. And the best part? We got some amazing photos thanks to this unique and adorable outfit. Highly recommend!” – Sarah

3. “I have never been more excited for Halloween than I was this year when I saw the Newborn Baby Boys Girls Halloween Cosplay Bat Costume Hooded Romper Jumpsuit on your website! This outfit is a total game-changer. Not only did it make my baby look like the cutest little bat ever, but it also kept them warm and cozy throughout our chilly night of trick-or-treating. The package even included a hoodie romper which was perfect for colder weather. Thank you so much for making our first Halloween as a family so much more fun!” – Tyler

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5. DuAnyozu Baby Girl Boy Halloween Avocado Costume Velvet Hoodie Romper Long Sleeve Zipper Onesie Cosplay Outfits (6-9 Months Avocado Hoodie Romper)

 DuAnyozu Baby Girl Boy Halloween Avocado Costume Velvet Hoodie Romper Long Sleeve Zipper Onesie Cosplay Outfits (6-9 Months Avocado Hoodie Romper)

Person 1
Hey everyone, it’s me, Sarah, and I just had to rave about this adorable baby Halloween costume I got for my little one! It’s the DuAnyozu Baby Girl Boy Halloween Avocado Costume and let me tell you, it is too cute for words. The fabric is so soft and cozy, perfect for keeping my baby warm during chilly trick or treating adventures. Plus, the avocado design with the smiley face just makes me giggle every time I see it. Highly recommend this outfit for any avocado-loving family!

Person 2
What’s up everyone? It’s your boy, Mike, here to talk about the DuAnyozu Baby Girl Boy Halloween Avocado Costume. Let me tell you, this costume is a hit with my little one. The long sleeve hoodie style keeps my baby warm and comfortable while we go out for fall festivities. And can we talk about how ridiculously cute they look in it? My heart melts every time I see them in this avocado onesie. Plus, the zipper makes it easy to put on and take off – a must for busy parents like myself.

Person 3
Hey there friends! It’s me, Lily, and I just have to share my experience with this amazing baby avocado costume from DuAnyozu. First of all, let’s talk about the size options – they have something for every age from 0-24 months! My little one is currently 6 months old and looks absolutely adorable in their avocado hoodie romper. We’ve been using it for Halloween photoshoots and fall festivals – it’s perfect for any occasion. And let’s not forget about the quality of the fabric – so soft and cozy! Definitely a must-have for any baby wardrobe. Thanks again DuAnyozu for making my baby look like the cutest little avocado ever!

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As a parent, I have come to realize the importance of having 6-9 month costumes for my child. Here are a few reasons why I believe they are necessary:

1. Milestone celebrations: At 6-9 months, babies reach important milestones such as sitting up and crawling. These moments are worth celebrating and what better way to do it than with a cute costume? It adds an element of fun and excitement to the milestone and makes for memorable photos.

2. Seasonal events: Halloween is just one example of a seasonal event where having a 6-9 month costume is necessary. As parents, we want to dress our little ones in the cutest costumes and take them trick-or-treating. But even beyond Halloween, there are many other occasions like themed birthday parties or Christmas where a baby costume can add to the festivities.

3. Photo shoots: Babies grow so quickly and before you know it, they have outgrown their clothes. Having a 6-9 month costume allows you to capture precious memories through photo shoots that you can cherish for years to come.

4. Dress-up play: It’s never too early to introduce dress-up play to your child. At 6-9 months, babies are starting to explore the world around them and

My Buying Guide on ‘6 9 Month Costumes’

As a parent, I understand the excitement of dressing up my little one in adorable costumes. However, finding the perfect costume for a 6-9 month old can be quite challenging. That’s why I have put together this buying guide to help you make the best decision for your baby’s costume.

1. Consider the material

When it comes to costumes for babies, comfort should be a top priority. Look for costumes made with soft and breathable materials such as cotton or fleece. Avoid materials that may irritate your baby’s delicate skin.

2. Safety first

Safety is crucial when it comes to choosing a costume for your little one. Make sure there are no small parts or choking hazards that could harm your baby. It’s also essential to check if the costume has any loose strings or buttons that could pose a risk.

3. Size and fit

Babies grow at an incredible pace, and their sizes can vary greatly between 6-9 months. When buying a costume, consider going a size up to ensure your baby will be able to wear it comfortably throughout the season. Also, look for costumes with adjustable features such as stretchy waistbands or Velcro closures.

4. Choose appropriate themes

Babies may not yet understand the concept of Halloween, but that doesn’t mean they can’t join in on the fun! When choosing a costume, opt for cute and age-appropriate themes such as animals or fruits rather than scary ones.

5. Versatility

Babies outgrow their clothes quickly, so it’s essential to choose a costume that can be used beyond just Halloween night. Look for costumes that can double as everyday wear or those with detachable parts.

6. Budget-friendly options

Costumes can get expensive, especially when buying for a growing baby who may only wear it once before outgrowing it. Consider budget-friendly options such as DIY costumes or borrowing from friends/family.

7. Read reviews

Before making a purchase, take some time to read reviews from other parents who have bought similar costumes before you. This will give you an idea of the quality and fit of the costume before making your decision.

I hope these tips will help guide you in finding the perfect costume for your little one! Remember to prioritize comfort and safety while still having fun dressing up your baby in adorable outfits.

Author Profile

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Bryna C.
Ran By Nature is an anagram of Bryna, the name of our inspiring founder. Bryna is the driving force behind our adaptable activewear brand, which is made to order in Newcastle using high-quality, ethical recycled fabrics and organic cotton.

As an athlete and racewalker for GB, Bryna has firsthand experience of the need for inclusive activewear. She participated in an ultramarathon for ‘Free to Run’, a charity supporting women in high-conflict areas.

From 2024, Bryna C. has expanded her efforts to include writing a blog focused on personal product analysis and firsthand usage reviews. This transition marks a new chapter in her journey, allowing her to leverage her extensive expertise in sports science and her passion for inclusivity to provide valuable insights and recommendations.

Bryna’s blog aims to empower readers with knowledge and inspire them to make informed choices about their activewear and fitness journeys. Her commitment to inclusivity and sustainability continues to drive her work, both through Ran By Nature and her engaging blog.