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Photo by Rebecca Yale Photography
Perhaps one of the most popular dress codes for weddings is semi-formal attire, but searching for a dress that fits this ambiguous label can be hard to pin down. Is a sundress too casual? Is a satin midi too dressy? What hemline is appropriate? With all these questions running through your mind, it can be a bit overwhelming trying to find the right look. The good news is that, while there are many interpretations of this dress code, popular online retailers have pages upon pages of semi-formal dresses to peruse.
When shopping for a semi-formal wedding guest dress, keep the season and venue in mind. A spring or summer wedding is a great opportunity to play with brighter colors, lightweight fabrics, and fun patterns. For winter or fall nuptials, break out the jewel-toned dresses in lush fabrics like velvet. Dressing for a semi-formal wedding also allows for diverse dress lengths, as mini, knee-length, midi, and floor-length frocks are all acceptable depending on the design.
To help narrow down your search, we researched and selected the best options available for every style, budget, and season. A few of our top finds include the Reformation Twilight Dress, the Yumi Kim Petra Dress, and the Celebration Time Tiered Midi Dress.
Read on for the best semi-formal wedding guest dresses.
Best Budget
Lulu’s Celebration Time Tiered Midi Dress
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Luluâs
Size: XXS-XL | Materials: Polyester | Length: Midi
Shopping for multiple dresses to wear to different weddings can get expensive, but luckily there are tons of budget-friendly options out there. Consider this stylish and under-$100 tiered midi dress from Lulu’s, available in six gorgeous colors. We especially love this sweet lavender option for spring.
Price at time of publish: $69
Best One-Shoulder
Baobab x REVOLVE Marea Beach Maxi Dress
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REVOLVE
Size: XS-XL | Materials: Sheen satin | Length: Midi
This satin number is the perfect balance of sexy and chic, making it appropriate for any semi-formal wedding you may be attending. The striking emerald green hue is sure to make a statement, while the one-shoulder neckline, draped skirt, and high-slit create dynamic and sexy details.
Price at time of publish: $225
Best Wrap Dress
Zimmermann Silk Wrap Mini Dress
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REVOLVE
Size: XS-L | Materials: Silk charmeuse | Length: Mini
A classic wrap dress is always a go-to for semi-formal occasions, and we love this pink blush option from Zimmermann—though it's also available in black, sage, and biscuit. Style this feminine frock with gold jewelry and a pair of nude pumps.
Price at time of publish: $595
For the Sophisticated Guest
Michael Costello x Revolve Marisol Mini Dress
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REVOLVE
Size: XXS-XL | Materials: Viscose, Rayon | Length: Mini
While this dress seems formal at a glance, the short hemline adds a bit of whimsy to a sophisticated piece. We can picture this looking extra chic when paired with delicate pearl accessories and strappy heels.
Price at time of publish: $147
For a Spring Wedding
Lulu's Cascading Crush Tiered Bustier Midi Dress
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Lulu's
Size: XS-XL | Materials: Polyester | Length: Midi
Heading to a semi-formal wedding this spring? You won’t want to miss this stylish pleated midi from Lulus. These pretty pink florals would look gorgeous for a garden ceremony, but it's also available in a variety of other colors and prints that work well for the season.
Price at time of publish: $79
Most Dynamic
Shona Joy Noemi Ruched Mini Dress
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REVOLVE
Size: 2-10 | Materials: Viscose, polyester | Length: Mini
Get ready to swoon over this charming mini dress that features an intricate mix of subtle patterns and cuts in a romantic ocean blue color that's perfect for beach weddings. The high-neck collar, draping sleeves, and tiered hemline make this a no-fail option.
Price at time of publish: $380
Best Floral Print
Reformation Twilight Dress
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Reformation
Size: 0-12 | Materials: Viscose | Length: Midi
Reformation is known for its semi-formal dresses, so it’s hard to pick a favorite. However, this pastel purple floral print number is definitely a winner. It also comes in several other beautiful colors and prints worth considering depending on the season and venue.
Price at time of publish: $278
Best Color
Ulla Johnson Carine Dress
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Ulla Johnson
Size: 00-16 | Materials: Polyester | Length: Midi
This midi dress comes in a striking deep purple color that is undeniably stunning. The eye-catching tiered detailing on the puff sleeves, the deep V-neckline, and the flattering tie waistband make it worth the splurge. We also love the tuberose option for a daytime summer wedding.
Price at time of publish: $690
For a Daytime Wedding
Yumi Kim Petra Dress
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REVOLVE
Size: XXS-XL | Materials: Viscose | Length: Mini
This floral-printed mini is a sweet and romantic option for daytime wedding festivities. The puff sleeves add a bit of drama to the look, while the high neckline and tiered skirt add a flattering and unique touch.
Price at time of publish: $153
Best Mini
Hello Molly Strut All Night Dress
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Hello Molly
Size: XS-L | Materials: Satin | Length: Mini
This classic blue mini dress is elegant enough to wear to a semi-formal wedding while still having a bit of an edge. We love the delicate sweetheart neckline and the subtle side slit for a sexy flair.
Price at time of publish: $59
For a Fall Wedding
ASTR The Label Gracie Satin Midi Dress
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ASTR The Label
Size: XS-XL | Materials: Polyester, Elastane | Length: Midi
Deep wine colors are always a favorite when it comes to fall weddings, and they can easily transition from day to night. This chic gown has a cowl neckline, an open back cut-out, and a side slit for a fresh and dynamic design.
Price at time of publish: $128
Best Ruffles
1.State Shelia Ruffle Tiered Maxi Dress
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Bloomingdale's
Size: XXS-XXL | Materials: Polyester | Length: Midi
For a playful, summer semi-formal wedding ensemble, don’t miss this ruffled strapless dress. The blush pink adds a romantic element to this already sweet silhouette. Pair it will neutral accessories for a simple yet pretty look.
Price at time of publish: $89
Most Classic
Sachin & Babi Harper Dress
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Sachin & Babi
Size: 0-14 | Materials: Stretch Crepe | Length: Mini
This elegant and conservative dress will stun at any semi-formal spring or summer celebration. The unique flutter sleeve adds a bit of surprise to an otherwise classic cut. We especially love this light blue hue for a beachside ceremony.
Price at time of publish: $295
Most Relaxed
River Island Green Floral Frill Midi Swing Dress
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River Island
Size: 2-14 | Materials: Polyester | Length: Midi
Comfort is key when it comes to searching for dresses for wedding season, which is why we are such fans of this relaxed number from River Island. Not only is it flowy and comfortable, but the intricate hemline and delicate yet colorful print also make fun and bold.
Price at time of publish: $78
Best Cutout
Significant Other Jacy Dress
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Significant Other
Size: 2-12 | Materials: Viscose rayon | Length: Midi
While cutouts may be a daring choice for a wedding, we love the simplicity of this dress. The brown color is a chic and fashion-forward option at any time of the year, but you can also choose an all-black or terracotta color.
Price at time of publish: $248
Best Little Black Dress
Sau Lee Remi Silk Mini Dress
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Sau Lee
Size: 08 | Materials: Silk | Length: Mini
No closet is complete without the perfect little black dress. This flirty option is an elevated staple and is fit for any semi-formal wedding you have this season. Pair it with stilettos and a simple clutch for an utterly chic look.
Price at time of publish: $168
Best Slip Dress
BHLDN Cali Satin Cowl-Neck Midi Slip Dress
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Anthropologie
Size: 0-22W | Materials: Satin charmeuse | Length: Midi
When in doubt, a slip dress is always a safe bet for a semi-formal affair. This midi comes in 14 different colors, so there is an option for any and every style. No matter the season, this is a style you can wear again and again.
Price at time of publish: $168
Best Maternity
Pietro Brunelli A-line Maternity Slip Dress
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A Pea In The Pod
Size: XS-XL | Materials: Polyester | Length: Ankle-length
Moms-to-be no longer have to sacrifice style for functionality. This satiny maternity dress shows off your belly while staying effortlessly chic for any semi-formal affair. Pair it with flats for a simple and comfortable fit.
Price at time of publish: $125
Most Simplistic
ELLIATT Plateau Dress
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REVOLVE
Size: XXS-XL | Materials: Cotton blend | Length: Midi
No frills are needed with this simple and sleek midi dress from ELLIATT. The cheery yellow shade is perfect for a summer daytime wedding, while the off-the-shoulder neckline and high slit add a hint of elegance.
Price at time of publish: $225
For a Beach Wedding
Staud Landry Dress
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Staud
Size: XS-L | Materials: Cotton | Length: Midi
Heading to a semi-formal garden wedding? Opt for this pretty pink dress that has a relaxed and romantic vibe without being too casual. Pair it with simple kitten heals and loose waves for an ultra-feminine finish.
Price at time of publish: $350
What to Look for in Semi-Formal Guest Attire
Setting and season
When it comes to semi-formal affairs, the most important thing to keep in mind is the setting, season, and time of day. As we mentioned before, semi-formal can have many different interpretations, so considering these specifics can help you determine what dress is appropriate for the wedding you’re attending. For example, opt for brighter colors and fun patterns during the day, such as those found on the River Island Green Floral Frill Midi Swing Dress. For evening nuptials, cocktail dresses and polished jumpsuits are both appropriate options. Essentially, you want to look elevated yet understated.
Material and fit
Material is also something to look for in semi-formal attire. Satin fabrics, lightweight chiffon, or viscose are good choices for a semi-formal dress. However, more cottony materials may be too casual for the occasion, while overly embellished fabrics will likely be too dressy. It's all about finding a balance. We love the Lulu’s Celebration Time Tiered Midi Dress or the Sachin & Babi Harper Dress for a casual yet sophisticated ensemble.
Why Trust Brides
Contributing writer Melony Forcier is a recent graduate starting her career path in beauty and fashion journalism. Before graduating, she interned with both Boston Magazine and Foundation PR. Additionally, she served as a fashion editor for Boston University's lifestyle magazine, The Buzz.