kwickert:I am thinking it might be a bit cool, Blackbeards site suggests a 6mm or better... :11: of course you mileage may vary.
6mm is overkill at any time of the year in the Bahamas. The most I ever wore during the 2 years we lived there was 1/4" (3mm) with an Aeroskin sleeveless vest.
Bonne chance,