Traveling to Thailand in May. For the beach part of the trip I'm thinking around Karon on Phuket. Having researched and searched forum entries, I know May could be a bit wet/rainy. Should I consider the west coast, gulf coast, or ? island for the best warmth/dry weather? Looking to chill, hang on the beach, swim, etc. for 4-5 days somewhere before returning to BKK. Thanks in advance for any advise.