The weather will be fine. For many years we visited the island in April and November, but lately we choose to go for a month in November and travel elsewhere in April. The weather has always been great both months. We find the water is warmer in November and we have never encountered much rain. If it rains a all, we find the showers come during the night when we are sleeping and we are greeted by sunshine during the day. The weather in SXM is tropical so a few showers will be all you see unless a tropical storm is really headed your way. It is not hurricane season so it is rather doubtful that you will have 5 days of rain. That never happens in SXM!