Quote Originally Posted by paintflinger View Post
A suit in a light colored linen would be appropriate and very comfortable. Paired with a white linen button down dress shirt and a navy pocket square and you should be good to go. Brown, light tan, or navy suede loafer are the way to go. Not particularly cooling on the feet, but they match the level of dressiness that the casual suit/shirt combo brings.

As a side note, a tropical weight wool, especially one in a loose weave like Fresco, will be a better option than linen imo. Linen, once wet, takes a good while to dry and can be wrinkly. Linen shirt could be swapped out for a polo shirt, but that is much less classy for a groom's attire imo.
Awesome advice. Have any specific links you could share?