1. Afternoon formal wedding.
Go for a light grey suit and a crisp lavender shirt. Its a fresh look and will set you apart from the rest. A tie is probably optional if the wedding is before sunset, but be sure to honor the couple's dress code.
2. Informal daytime wedding.
Get yourself a khaki suit. The cotton will keep you dramatically cooler than a wool suit and it has a fun air about it. Watch the pockets- they define how formal it can be made. Look for pockets with a flap to keep it from becoming too casual.
3. Daytime beach wedding.
Try a linen suit or even just the slacks. It's nice and breathable to keep you from getting overheated and just formal enough to fit in at a wedding. Just watch how light the color gets so you don't get into a competition with the bride. And don't fight the wrinkles, its all part of linen's charm.
4. Evening formal wedding.
The black suit will suffice here, hopefully you are in an air conditioned room to prevent heat stroke. Get yourself a great pair of wingtips and a bold tie to complete the look.
5. Black tie wedding.
This is a no-brainer. Wear a tux, gentlemen. If you want to get creative go with a navy or brighter blue (not too bright) tuxedo. A tux should never be worn during the day so be sure to analyze the announced dress code before deciding its appropriate.
Stop by 9tailors to design your perfect tuxedo or suit. Make an appointment here. And remember they just got some new khaki fabrics in so treat yourself to something different!