What is the weather usually like in March? We will be staying in the Wailea area the 2nd week of March 2010. We plan to visit all the south beaches and drive up to the Upcountry one of the days. We've been to Maui three times before, always in June. This time we wanted to go duirng whale season . I'm curious, is the weather similar to June's (85 +- air temp; water warm enough for snorkeling)? Or is there a real noticable difference?