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Add Some Patterns

Adding a pattern to the groom's summer wedding look, like a checked shirt, instantly adds some interest (and personal style). Choosing a navy blue color instead of the typical black or gray lends a laid-back but dressed-up feel to his look — just right for a casual, warm-weather wedding. Shop This Look: Boss Isaac Slim Fit Check Dress Shirt, $178; nordstrom.com Eton Check Slim Fit Dress Shirt, $245; bloomingdales.com H&M Regular Fit Oxford Shirt, $25; hm.com

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Light Colors

Incorporating pale colors, such as gray, sky blue or lilac, keeps any groom's attire looking light and airy, which is stylish — and practical — for a summer wedding. Try adding a light pink tie to make this look pop even more. Shop This Look: Calvin Klein Steel Men’s Slim-Fit Non-Iron Performance Herringbone Point Collar Dress Shirt, $37; macys.com John Varvatos Star USA Micro Stripe Slim Fit Stretch Dress Shirt, $98; bloomingdales.com 1901 Lucaya Solid Silk Tie, $25 at nordstrom New Look Tie and Pocket Square Set in Pink, $16; asos.com

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Go With Light Gray

Light gray is a summer celebration staple, and it makes any groom look and feel sophisticated. This suit's muted palette makes a chic backdrop for the wedding's bright colors. Shop This Look: Alfani Men's Stretch Performance Slim-Fit Jacket, $360; macys.com Alfani Men's Stretch Performance Solid Slim-Fit Pants, $135; macys.com Express Classic Light Gray Cotton Pindot Suit Jacket, $127 (orig. $228); express.com Express Classic Light Gray Cotton Pindot Suit Pant, $59 (orig. $98); express.com

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Navy blue and black with bow tie groom attire or summer wedding
Photo: Kate Holstein

Use Solid Colors

A sharp dark blue-and-black suit is formal groom attire done right. Adding a black bow tie makes this look even dressier but still summer appropriate. Shop This Look: Express Extra Slim Blue Satin Accent Tuxedo Jacket, $248; express.com Express Extra Slim Blue Satin Accent Tuxedo Pant, $98; express.com Perry Ellis Men's Slim-Fit Stretch Navy Shawl-Collar Tuxedo, $425; macys.com

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Add A Patterned Bow Tie

Again, light gray works for a variety of outdoor, warm-weather events — and the addition of a patterned bow tie makes this look all his own. Suspenders add another classic and elegant touch. Shop This Look: Paul Smith Floral-Pattern Silk Bow Tie, $125; barneys.com Brooks Brothers Dot Silk Bow Tie, $89.50; nordstrom.com Brooks Brothers Textured Split Stripe Bow Tie, $60; brooksbrothers.com

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Light, Bright & Beachy

If you're exchanging vows under the summer sun, things can get pretty toasty. We're pretty certain your groom would prefer an outfit he won't overheat in. This light beige look will keep him feeling and looking cool. You can also add a casual touch by rolling up the sleeves. Shop This Look: Heart & Dagger Skinny Vest in Linen, $24; asos.com I.N.C. Men's Collins Slim-Fit Vest, $40; macys.com Perry Ellis Regular-Fit Linen Vest, $80; dillards.com

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Gray suit with no tie for a Summer wedding
Photo: Erich McVey

Opt For No Tie

Have him lose the tie for a less formal look. As long as his suit is properly tailored, his wedding-day outfit will still be elegant and appropriate. Shop This Look: Original Penguin Men's Slim-Fit Stretch Gray/Brown Windowpane Suit, $200; macys.com H&M Blazer Skinny Fit, $70; hm.com H&M Suit Pants Skinny Fit, $43; hm.com Vince Camuto Men's Slim-Fit Comfort Stretch Sateen French Cuff Dress Shirt, $40; macys.com

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Classic black and white groom attire for a summer wedding
Photo: Tessa Barton

Stick To The Classics

Sometimes a traditional black suit and white shirt is the best choice for a summer wedding. Adding dark brown shoes gives the classic look a modern spin. Shop This Look: Express Extra Slim Black Performance Stretch Wool-Blend Suit Pants Black Men's, $118; express.com J.M. Haggar Premium Slim-Fit Stretch Flat-Front Suit Pants, $50 (orig. $100); kohls.com Tommy Bahama Men's Sea Glass Breezer Linen Shirt, Created for Macy's, $100; macys.com Johnston & Murphy Carlson Cap Toe Oxford, $169; nordstrom.com

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Add A Vest

Swap his jacket for a vintage-inspired vest. It's still buttoned-up for the big day but will keep your groom cool and comfortable. Shop This Look: J.Crew Ludlow Suit Vest in Italian Wool, $110 (orig. $135); jcrew.com H&M Suit Vest, $25; hm.com

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Light gray and pastel groom attire for a summer wedding
Photo: Erich McVey

Choose Pastels

Pastels are perfect for outdoor weddings. Soft shades and light fabrics are a great mix for almost any summer wedding, no matter the vibe. Shop This Look: Boohoo Herringbone Skinny Fit Suit Jacket, $77 (orig. $110); us.boohoo.com Boohoo Herringbone Skinny Fit Suit Trouser, $35 (orig. $50); us.boohoo.com Tommy Hilfiger Men's Modern-Fit TH Flex Stretch Blue Chambray Suit Jacket, $275; macys.com Tommy Hilfiger Men's Modern-Fit TH Flex Stretch Blue Chambray Suit Pants, $120; macys.com