Phuket is a year-round destination with a tropical monsoon climate. The rainy monsoon season is from September until October. The high season is between November and March, when there no rains and the Andaman Sea is calm. The average air temperature: 25-33C/77-91F The water temperature: 27-30C/81-85F The visibility: around 20m/66ft The currents may vary, but generally stay mild.
What to see
The reefs around the area are in healthy condition, with corals and rich marine life, including large numbers of jacks, trevallies, barracudas, honeycomb grouper, bamboo sharks, leopard sharks, sea snakes, moray eels, pufferfish, dainty seahorses, giant barrel sponges, sea whips, black corals, and gorgonians.