What to Wear to a Summer Wedding in 2025

If the couple included a dress code in the invite, trust us—they mean it. Whether it’s formal, cocktail, or something cute like “garden chic,” they’re giving you a style roadmap. Not sure what it all actually means? We’ve got you. This summer wedding guest outfit guide breaks down what to wear (and what to skip) based on the dress code, so you can show up looking perfectly on-theme and totally put-together.

Casual Wedding Guest Clothes

A casual dress code doesn’t mean just any old sundress—it’s still a wedding, after all. Think gauzy, whimsical dresses that look a little ethereal while allowing airflow to keep you cool. Florals are always a safe (and stylish) bet for summer, and airy fabrics keep things easy breezy.

One dress we love? The Lulus In My Dreams Mauve Floral Print Midi Dress, it’s the perfect blend of modern boho and polished romance, making it ideal for a casual ceremony that still leans a bit fancy. Get your hands on it with a Lulus promo code. 

Semi-Formal Favorites

A semi-formal outfit sits in that sweet spot between casual and formal attire, less dressy than cocktail attire but more polished than business casual. Think elevated elegance without going full glam. A flowy midi dress with elevated details, a tailored jumpsuit, or posh separates can all hit the right note.

You can’t go wrong with solid-color neutrals and jewel tones, especially in summer-friendly fabrics that still feel refined. Long and sleek silhouettes work beautifully here as long as they’re lightweight (pass on structured or lined options). One piece we love? The Pontee Plissé One-Shoulder Midi Dress in a gorgeous orchid hue. The one-shoulder neckline and single long sleeve give it just the right mix of romance and sophistication, perfect for a look that feels put-together but not overdone. 

Cocktail-Ready Outfits

Cocktail attire hangs between dressed-up and party-ready. Think upscale date-night looks like sleek midi dresses, posh jumpsuits, and heels that can handle a night on the dance floor. To keep things summer weather-appropriate, opt for breathable fabrics like chiffon, crepe, rayon that won’t leave you overheating by the time toasts begin. Hemlines for cocktail dresses can be knee-length or midi, but it’s best to skip anything too short or revealing—save the daring cuts for another night out.

One look we’re crushing on right now is the Lulus Cascading Crush Cobalt Blue Tiered Bustier Midi Dress. With its structured bustier top and petal-like tiers, it feels like a tulip in full bloom—elegant, with a pinch of edge.

Black-Tie (Without the Sweat)

Finding the right outfit for black-tie weddings in the summer can feel tricky as you want to look luxe, not overheat. The goal? Formal and glamorous, but still breathable and light. Think floor-length gowns in lightweight satin, silk, or chiffon, with thoughtful details like metallic accents, draped silhouettes, or open backs that add elegance and airflow.

The Frankie Silk Dress by Trieste Border gets the black-tie code right. While it is lightly lined, this 100% silk charmeuse number is slinky, sophisticated, and light as air—exactly what you want for a summer soirée. The thin straps help the cooling factor by keeping shoulders and arms exposed. 

Pro tip: Order ahead and use a Reformation coupon to score this stunning dress for less. (Image credit: @rosewood.ve)

Sometimes the only hint you have about a wedding’s dress code is the venue, luckily, that’s more helpful than you might think. Whether it's a beach ceremony, held in a barn, or an evening rooftop affair, the setting can help guide your outfit choice. Here’s how to dress for the location and still look stunning and on-theme in the summer heat.

Beach Wedding

Beach weddings call for elegance, but make it light and easygoing. Think flowing maxi dresses, airy fabrics, and open-toed footwear that won’t sink in the sand. Light, sun-washed colors, subtle nautical touches, and playful jewelry all fit the vibe—just make sure it feels effortless, not costume-y. Cotton, linen, and seersucker are perfect fabric picks for keeping cool, and don’t forget to factor in the elements. A little wind, sun, or salty air can throw off even the most thoughtful look, so plan for protection and comfort.

One dress we can’t stop thinking about is the En Saison Cairo Strapless Midi Dress. With romantic rose details and a lace-up back, it’s equal parts flirty and refined. Best of all, it’s totally rewearable, perfect for date nights, brunches, and summer parties. Snag it for less with an Anthropologie promo code. 

Outdoor & Formal

Outdoor weddings with a formal dress code? We get it—that combo can feel like a recipe for outfit stress. But with a just-right dress and accessories, you can stay cool and keep the look polished. A lightweight floral midi is our seasonal go-to: it feels dressy without weighing you down, and it's easy to style with chunk heels or wedges that won’t sink into grass or gravel. Fabrics like rayon, chiffon, and viscose are breathable and more elevated than cotton or linen.

We’re all about the Sachin & Babi Pru Floral Midi Dress for an outdoor wedding guest dress. With its slightly tailored silhouette, sweetheart neckline, and thin spaghetti straps, it’s put-together and romantic without piling on the fabric. Add pearl accents, a swipe of shimmer, and a spritz setting spray to combat the heat and humidity and you’re ready to turn heads. Grab it with an exclusive Saks Fifth Avenue promo code for a chic steal. 

Indoor & Air-Conditioned

If the summer wedding is indoors (hello, hotel ballroom), you’ve got a bit more freedom with structure and fabric without worrying about getting too warm. Think sleek fabrics, elegant silhouettes, and coordinated accessories. Don’t forget to bring a lightweight wrap or shawl—because let’s be honest, you never know how chilly the AC will be. 

We think slip dresses, tailored suits, and anything with a hint of shine feel right at home here, like this 100% Washable Silk Sweetheart Dress from Quince. It’s softly structured, lightweight, and made from hypoallergenic silk that looks glowing under soft lighting. With a bustier-style top, smocked elastic back, and invisible zipper, it’s as comfortable as it is gorgeous. Bonus: it’s machine washable (yes, really), so no need to head to the drycleaners. Sign up for Quince emails to score a discount on this lovely frock.

Barn or Rustic Venue

A barn or vineyard wedding might sound casual, but don’t assume you can roll up in denim. These venues often call for semi-formal attire—just with a rustic twist. Before you plan your look, double-check the dress code to make sure you’re striking the right balance.

For a charming countryside celebration, tiered maxi dresses, high-low hemlines, and block heels are your best bet. They feel polished but can still handle a little grass or gravel. Romantic details like ruffles, eyelet, and lace add a playful, wedding-ready touch.

Our fave for a down-home event is the Chelsea28 Floral Tiered Maxi Dress in the dreamy Blue-Ivory Bloomtastic print. It’s sweet and summery, with just a bit of stretch to keep things comfy even on muggy days. It’s the perfect mix of country charm and graceful style. (Image credit: @rosiepatterson_)

Once you’ve nailed the dress code and decoded the venue, it’s time to get into the subtler details of dressing for the summer months. From shifts in weather to color palettes that feel especially on-point, each month brings its own vibe and a chance to tailor your look accordingly. Here’s how to dress for every part of wedding season while dodging the heat.

June Dress Styles

Depending on your location, June is perfect for summer-spring transition pieces. Focus on light layers and pastel tones. Our top June wedding guest look is the Hutch Plunge Neck Tiered Tulle Dress in an understated Sky Floral pattern. Romantic and flattering, this tiered dress features pleats and a dramatic plunge neckline. Get it for less with a Nordstrom promo code. 

July Heatproof Looks

During peak summer, lean on sleeveless silhouettes, breathable shoes, and some anti-sweat hacks to avoid personal misery on the couple's happiest day. Skip silk (sweat marks are real), bodycon styles (hello, sticky), and anything with heavy layering that clings in the heat. Instead, go for floaty fabrics like chiffon, cotton blends, or tulle—materials that create space between you and the summer air. We love the movement and flow of the Rosalina Floral Side Slit Dress by ASTR the Label for this very reason. Made from cooling, breathable viscose, this floral dress with strategically flattering ruffles is a July vision.

August Elegance

Late-summer weddings call for a shift in tone—think deeper, sun-soaked hues like berry, marigold, and terracotta paired with breezy, elevated fabrics. You’ll want something that looks dressed-up but still keeps you cool when the heat peaks.

One standout look? The Farm Rio x Anthropologie V-Neck Tiered Maxi Dress. With foil-like floral accents, a flattering V-neckline, and a tiered skirt that moves beautifully, it’s equal parts dramatic and breathable. Made from lightweight viscose, it’s perfect for toasty temps and twirling on the dance floor. Pair it with gold or silver strappy sandals for a look that says effortless elegance.

Being a wedding guest doesn’t have to break the bank. Whether you’re shopping on a tight budget or ready to splurge a little, there are plenty of gorgeous summer-ready guest styles at every price point. From affordable finds to investment pieces you'll wear again and again, dressing for a summer wedding can be stylish and smart.

Under $100 Steals

You don’t need a designer label to turn heads. Some of our favorite summer wedding guest dresses have come from tried-and-true budget-friendly spots like Target, Lulus, ASOS, Hello Molly, and BloomChic. The secret? Look for luxe-feeling fabrics, eye-catching details, and silhouettes that mimic high-end styles.

One pick we’re loving right now: the ASOS DESIGN Cape Overlay Ruffle Bias Maxi Dress in vibrant green. With its dramatic drape and fluttery details, it looks way more expensive than it is. Style it with gold or black stilettos and a beaded clutch to amp up the “Is that designer?” vibes.

Mid-Range Finds ($100–$250)

If your budget allows for a little more wiggle room, you’ll find plenty of stylish, versatile options from brands like Mango, Tuckernuck, COS, & Other Stories, Reformation, and ASTR the Label. The best part? Many of these dresses can double as go-to looks for bridal showers, work events, or fancy brunches.

One standout is the Hyacinth House Brilliant Pink Floral Bonnie Midi Dress. With its vibrant floral print and tailored-meets-bouncy silhouette, it feels fancy yet playful—perfect for everything from garden weddings to semi-formal soirées. Style it with a woven or straw handbag and gold or tan flat sandals for a relaxed, summery feel. Shop with a Tuckernuck promo code to make it even more affordable or check out our rundown of trending wedding guest dresses under $250 for more picks. 

Splurge-Worthy Showstoppers

When the dress code calls for drama (or you're just ready to treat yourself) turn to elevated retailers like Moda Operandi, FARFETCH, MESHKI, Luisaviaroma, and Anthropologie for wedding guest dresses that feel like wearable art. These picks are investment-worthy and often have that heirloom feel you’ll cherish (and re-wear) for years.

Our top splurge for the season is the Hutch Gabriella V-Neck Drop-Waist Maxi Dress in bold lime green. With its floaty silhouette, gathered skirt, plunging neckline, and drop-waist detail, it channels midsummer princess energy in the best way. Finish the look with linear drop pearl earrings and nude or beige flats or sandals for an effortlessly elegant ensemble. (Image credit: @kels.ander)

When temps climb, the right accessories can make or break your comfort (and your outfit). In the summer, it's all about choosing pieces that look great and help you stay cool. Think lightweight, functional, and fuss-free.

Accessories for Summer Weddings

Say yes to chic sunglasses, structured clutches, pretty handheld fans, and wide-brim sun hats that offer actual shade. One of our favorite wedding-day companions? The understated BTB Los Angeles Gigi Framed Woven Raffia Clutch Bag, it's just roomy enough for your wedding day essentials, but light enough to carry all night long.

Summer Wedding Guest Footwear

For outdoor weddings, skip stilettos that sink into the ground for wedges or chunky heeled sandals. Flats are also appropriate for an outdoor formal. For that perfect cross between casual and formal, we love Bibi Lou Cross-Strap Platform Sandals for some height.

Jewelry for Summer Weddings

Pick jewelry that won't stick or snag in the heat. Look for pieces that feel playful and add sparkle like lightweight medallions, sweat-resistant metals, and decorative hair clips that lock up hair. To add a dash of color and drama, try bright gemstones, or keep things sleek with minimalist metal pieces. The SHASHI Double Tsuki Cuff Bracelet makes the right kind of statement. (Image credit: @catherinevilhem)