If you are still deciding on the date for your wedding then you might want to check the tides. For beach weddings you want to have as much room as possible to set up the ceremony site, especially if you have a group of over 20 people. For portrait sessions low tides are also great because it gives us a lot of room to work.
Some beaches are narrow, and at high tide there is no room at all! Fortunately at low tide these beaches open up a nice area of sand that will easily accommodate you and your guests.
However, if there is going to be a high tide for your wedding don’t fret. There is always, somewhere, a spot above the tide line that will accomodate you. Your wedding planner will be able to advise you on this. Also, if you are there a day or two early you can scope the area and find a good spot.