I am NOT on island right now, but looking at windguru.com, which is usually pretty accurate, it looks like you are going to have good size waves (and winds) coming from the East for a few more days. That will effect east & north facing beaches also, like Bay Rouge.

Your best bet will be on the west side of the island, like Plum Bay (Baie Prune) or Baie Longue. They won't be perfectly calm, but better than beaches located on the east of north sides of the island.

Looks like it will calm down a bit by Saturday.