Last year we did the BVI''s in August, which was technically the start of "hurrican season" and didn''t see one day without sunshine and clear skies. Obviously, there is a chance some weather will develop, but it''s just like everyone said before: less tourists, more time to enjoy the local atmosphere without trying to climb over the many who are in
line before you, and it is almost possible to
anchor at an island and be the only inhabitants... (there''s a little spot we anchored last year for two days - we only saw one other boat pull up and snorkel for a couple hours, then take off. It was a pretty amazing feeling owning your own little island for a couple days). I don''t think that''s possible in the winter, as there are boats clogging each mooring ball and the rest have taken the good anchorages.
I recommend it highly, as the prices for charters are also lower. We went to Conch Charters in the BVI''s and got two weeks for the price of one! There are deals like that out there, and the summer months are the times to get them.
Have fun,
Ben