You can often wear sleeveless, strapless, and halter wedding dresses for an outdoor summer wedding, and may choose to wear a matching jacket at night when the sun goes down. [2] X Research source You should, on the other hand, feel appropriately formal in dress pants and a button-down shirt with a suit jacket over it. Dress shoes that can be comfortably danced in are a must. Opt for a tuxedo if the wedding is very formal, or if you are a member of the wedding party.
A beach wedding is likely going to be windy and humid, so you will want your attire to endure those conditions. Consider avoiding a short dress that could become revealing in a strong wind, and wear a lightweight shirt under a suit jacket in order to reduce sweating. Pack deodorant in a bag, just to be safe.
A wedding at a vineyard would require far dressier clothes than a backyard wedding. If you have any doubts, ask your hosts for their honest advice on appropriate apparel.
A nighttime wedding might get chilly, so take along a shrug, cardigan, wrap or jacket for the cool evening air. A noon wedding on a day without overhead cloud cover may get uncomfortably warm, so consider that and take sunblock. A hat is an option too, a dressy straw hat, a classic Panama hat or even a Stetson depending on the wedding theme.
If choosing between a knee-length dress or floor-length gown, go for the gown. If you are torn between loafers and dress shoes, go for the dressier and more formal shoes.
There is no need to overdo your look with a hat or armful of bracelets. Go for the simplest options, as this will allow you more freedom and comfort.