Is there anything more beautiful than watching a loved one tie the knot on a warm summer day? The sun is in the sky and love is in the air—but nice weather comes with its own unique wardrobe challenges. If you're wondering what to wear to a summer wedding, you've come to the right place. We're sharing expert insight on exactly how to choose the right outfit according to dress code, venue, and, of course, season. These tips will help you stay cool and comfortable (without throwing traditional guest etiquette out the window). Keep reading to find out the biggest dos and don'ts of summer wedding guest attire, whether you plan on donning a dress or a seasonal summer suit.