I was there in the 1st week of December last on a cruise and the weather then is very good as the hurricane season finishes in November.
The temperatures in the caribbean is similar all year round at about 82 C.
It was brilliant sitting on sunset beach with the aircraft 50 feet above you head and the airport is pretty busy too.
There cannot be a much better way to while away a day than sitting at the Sunset Beach bar drinking Buds and feeding on a tasty burger while watching the planes land. The pictures you have probably seen don't really do it justice. If you get fed up you can go for a dip in the lovely azure sea, damn fine place.