These 16 Plus-Size Beach Wedding Guest Dresses Are Perfect for a Seaside Celebration

Serve looks in one of these beachy styles.
Collage of three plus size beach wedding guest dresses
Photos, From Left to Right: Anthropologie, Show Me Your Mumu, ASOS
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by
Jessica Booth
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Jessica Booth
The Knot Fashion Contributor
  • Jessica is a freelance writer who covers topics such as weddings, parenting, wellness, commerce, health and food.
  • Jessica has written for sites including Cosmopolitan, Delish, Bustle, Romper, Refinery 29, Reviewed, Parents, Brides, People, Forbes, The Daily Beast and many more.
  • Jessica has a degree in journalism and lives on Long Island in New York.
Updated Sep 12, 2023
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Whenever you're invited to a wedding, you want to make sure your attire is a good fit with the venue. If you're heading down to the seaside for a ceremony and reception, you'll want a great plus-size beach wedding guest dress that works whether you're outside or inside. You'll find that these options will be similar to a plus-size summer wedding guest dress as well. While what you wear always ultimately depends on the dress code of the event, many beach weddings tend to have a more casual feel, especially if they take place during the day.

When looking for the perfect plus-size beach wedding guest dress, you want to find something that is comfortable whether you find yourself in the sand with a bit of a breeze, or inside a room with air conditioning. Feel free to play around with bright colors and bold patterns, as well as summery touches like strapless necklines and high-low hemlines.

Plus-Size Beach Wedding Guest Dresses

When shopping for plus-size wedding guest dresses for the beach, look for something that works whether it's hot and sunny or a little bit breezy. Take into consideration whether or not you'll be outside on uneven terrain or in the sand, especially when it comes to choosing a long or short hemline. Look for pieces that can be layered or versatile picks that can be dressed up or down.

Eloquii Kimono Sleeve Maxi Dress

Pink kimono sleeve plus size summer wedding guest dress from Eloquii
Photo: Eloquii

Satin might not sound like the best fit for the beach, but this one has a more flowy fit that makes it a little different. It hits just above the ankles, just in case you find yourself in the sand, and the kimono sleeves add a little extra protection in case it's extra breezy. This bright pink color is fun for summer weddings.

Size Range: 14-32 | Dress Code: Semi-formal, beach formal, black-tie optional

By Anthropologie Slim Strapless Ruched Dress

Blue Slim Plus Size Strapless Beach Wedding Guest Ruched Dress
Photo: Anthropologie

Simple and versatile, this strapless blue dress can be worn to so many different occasions and can also be easily more dressed up or dressed down. The shade of blue is perfect for the beach (it may almost mimic the water), and the strapless neckline is ideal for a warm summer day.

Size Range: 1X - 3X | Dress Code: Cocktail, semi-formal, casual, daytime

Reformation Juliette Dress Es

Emerald sleeveless A line plus size beach wedding guest dress
Photo: Reformation

Another simple and versatile option, this Reformation dress feels just a bit more elevated. This is thanks in part to the fitted bodice, A-line skirt that include a slit, and thin straps. The sweetheart neckline makes it feel more feminine. This is great layered with a blazer for chilly beach nights, or left on its own.

Size Range: 14-24 | Dress Code: Cocktail, semi-formal, casual, daytime

Show Me Your Mumu Christie Maxi Dress

Multicolored one shoulder plus size beach wedding guest maxi dress
Photo: Show Me Your Mumu

A beach wedding is generally a bit more casual than other types of venues (although always check the dress code to be sure), especially if it takes place during the day. That makes it the ideal time to wear something as colorful and bold as this maxi dress. The one-shoulder style and flowy, sarong-like fit make it feel especially perfect for the beach.

Size Range: XS-3X | Dress Code: Cocktail, semi-formal, casual, daytime

City Chic Rebecca Maxi Dress

Teal plus size halter neck maxi beach wedding guest dress
Photo: City Chic

Even if there's a chance you'll be walking on the sand for a bit, a flowy maxi dress just seems like it works with the vibe of a beach wedding. Thanks to the halter neckline and pleated skirt of this dress, it also feels more dressed up, so it's great for a beach wedding that has a fancier dress code. Sophisticated and comfortable, this is a versatile choice in a beautiful color.

Size Range: 12-24 | Dress Code: Semi-formal, formal, cocktail

ASOS Design Curve Ruffle Off-the-Shoulder Maxi Dress

Plus size ruffle cut out off the shoulder beach wedding guest maxi dress with hi low hem in blue floral print
Photo: ASOS

This beautiful floral maxi dress feels perfect for a seaside ceremony. The high-low hem works well if you're on the sand or outside, and the off-the-shoulder sleeves give it a more bohemian and beachy feel. The ruffled sleeves and waist, as well as the right accessories, make this feel more elevated.

Size Range: 12-26 | Dress Code: Semi-formal, formal, black-tie optional

Jessakae Gem Dress

Blue plus size puff sleeve mini beach wedding guest dress
Photo: Jessakae

If you prefer to wear something shorter rather than a midi or maxi, this baby blue option is whimsical and chic. An empire waistline and smocked back keeps it comfortable and airy, and the half sleeves are ideal in case it's a little breezy. The color is also perfect with the ocean as a backdrop.

Size Range: XXS - 6X | Dress Code: Cocktail, daytime/casual

Eloquii Ruched One Shoulder Dress

Neon yellow one shoulder plus size summer wedding guest dress from Eloquii
Photo: Eloquii

Bright yellow is such a great and underrated color for a wedding, especially one that is outside and/or during the day. This one stands out thanks to the bold color, but the rest of the dress is kept simple, with comfortable ruching and a one-shoulder design.

Size Range: 14-32 | Dress Code: Cocktail, daytime/casual

Arula Arabella Floral Midi Dress

Floral Plus Size Off-the-shoulder Midi Beach Wedding Guest Dress
Photo: Arula

Despite its length, this midi dress has a bit more of a casual feel than some other options on this list, making it a great choice for a daytime wedding or casual dress code. The longer sleeves are a good option for beach weddings when the temperatures are a little lower. And because this one is more casual, you'll find that you'll wear it again and again.

Size Range: X - C | Dress Code: Daytime/casual, beach formal

Reformation Alaina Dress Es

Blue floral plus size crew neck mini beach wedding guest dress
Photo: Reformation

This blue floral dress hits above-the-knee, so it's a lovely cocktail dress option, or a good pick for a daytime or more casual wedding. The open back keeps you cool in case it's warm out, and this dress is ideal for those who don't want to show off a lot of cleavage. The sweet ruffles on the sleeves and the hem make it more feminine.

Size Range: 14–24 | Dress Code: Daytime/casual, cocktail

Show Me Your Mumu Midge Midi Dress

Orange daisy plus size strapless midi beach wedding guest dress
Photo: Show Me Your Mumu

The bold pattern, bright colors, and cute flowers on this dress make this dress feel like the perfect fit for a beach wedding. The strapless neckline is great for summer weddings. You can easily layer with a shawl or light cardigan for breezy nights, or you can leave it as is.

Size Range: XS-3X | Dress Code: Daytime/casual cocktail

City Chic Sadie Dress

Black plus size v-neck midi beach wedding guest dress
Photo: City Chic

Keep things simple with this classic black tank dress, which features a v-neck, midi length, and thinner straps. This is the ultimate versatile wedding guest dress. You can dress it up with the right jewelry, shoes, and accessories like a shawl, or you can leave it simple and more casual.

Size Range: 12-24 | Dress Code: Daytime/casual, cocktail

ASOS Luxe Curve Puff Sleeve Jacquard Mini Dress

Plus size puff sleeve jacquard mini beach wedding guest dress with embellished bust detail in blue print
Photo: ASOS

Pretty details like a rhinestone embellishment on the bust, puff sleeves, and a delicate floral pattern make this dress stand out. Even though it's short, it has an elevated feel to it, making it a good choice for an evening beach wedding.

Size Range: 12-26 | Dress Code: Daytime casual, cocktail, beach formal

ASOS Design Curve Flutter Sleeve Mini Dress

Coral plus size flutter sleeve v neck pleat mini beach wedding guest dress
Photo: ASOS

The bright color of this dress is really what makes it work for a summertime beach wedding. A ruffled skirt and bodice keep it from being too simple. This is another versatile pick that can be worn for a variety of events.

Size Range: 12-26 | Dress Code: Daytime/casual, cocktail, beach formal

City Chic Va Va Voom Cold Shoulder Dress

Navy Plus Size Cold Shoulder Beach Wedding Guest Dress
Photo: Nordstrom

This curve-hugging dress definitely has a more dressed up feel that makes it better for more formal beach weddings. A cold shoulder and front slit give this major sex appeal, and it has a kind of contemporary and classic look at the same time.

Size Range: 12-24 | Dress Code: Cocktail, Beach formal, semi-formal

Jessakae Ophelia Dress

Gold plus size flutter sleeve tulle beach wedding guest dress
Photo: Jessakae

With a billowing skirt, flowy sleeves, and light material, this maxi dress is gorgeous and whimsical. In yellow, it's ideal for a beach wedding or a summertime wedding, but it also comes in a few other shades if you want something more muted.

Size Range: XXS-6X | Dress Code: Semi-formal, black-tie optional

Where to Buy Plus-Size Dresses for Beach Wedding Guests

There are more than a few websites and stores that sell beautiful and versatile plus-size dresses for beach wedding guests, whether you want a formal wedding guest dress or something more beach casual. Shop around to find where to buy wedding guest dresses.

ASOS Curve

Looking through the huge inventory of dresses from ASOS can feel overwhelming, but can also definitely be worth it. The site sells a wide variety of dresses, ranging from casual daytime looks to black-tie gowns. The prices also vary too, and dresses can cost as little as $50 and over $200 depending on the brand you're looking at. If you want something more unique and colorful, this is also a great place to shop.

Size Range: 12-26 | Prices From: $50

Anthropologie

Anthropologie has a beautiful selection of classic and timeless plus-size dresses for wedding guests. Some are more whimsical and colorful, while others are more versatile and simple. You can find brand names or options made by Anthropologie. However, expect to pay a bit more – the wedding guest dresses are generally a few hundred dollars each.

Size Range: XXS-3X | Prices From: $98

Eloquii

A plus-size fashion site, Eloquii has tons of dresses to look through for almost any dress code. They also have a range of classic dresses and more fun options, with lots of different colors and a wide range of sizes. The prices are also reasonable, and usually fall between $80 and $150.

Size Range: 14-32 | Prices From: $80

Show Me Your Mumu

Looking for something colorful, fun, and unique? Check out Show Me Your Mumu. The site sells beautiful clothes that are high quality and bound to stand out. They also have seasonal options and picks that would be perfect for summer or beach weddings.

Size Range: XS-3X | Prices From: $150

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