Phuket sits on Thailand’s southern peninsula, where the rainfall pattern differs from the rest of the country: the west coast follows the typical May-to-October southwest monsoon, while the east coast gets an extended rainy season lasting into December and January thanks to the northeast monsoon.
On Thailand’s Andaman coast, the island’s rainy season follows the typical southwest monsoon pattern, with steep hillside terrain adding flash-flood risk during intense storms. This extended rain season means the southern peninsula’s east coast is often at its wettest and most flood-prone right when the rest of Thailand is entering its dry season, and radar is essential for tracking these later-season storms that can catch residents off guard. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map