If you go back in history the season is traditionally Mid December to Mid April with May arguably the wettest month with more inches of rain coupled with more days of rain. Each year the weather will be little different so you always expect the edges of the better weather season to change some. Sometime after April 1 each year the sea across the Atlantic will start to warm up and weather will become less predictable from a very humid baking flat calm to tropical storm weather. April and the Fall are the periods historically with rain on the most days during the periods when the weather is switching over.