At this time of year, we expect early morning and evening temperatures to be in the mid-70s (°F) and in the mid-80s (°F) throughout the majority of the day.
The water temperature in March averages the low-80s (°F). Since weather patterns are increasingly unpredictable, we recommend checking temperatures online at The Weather Channel or Weather Underground a few days before the trip departs.
Humidity is high in the tropics; fortunately, the trade winds help to keep it cooler.