Heavy rains in southern Thailand in late March caused floods and landslides that killed at least 45 and left thousands stranded when airports, railways and roads were closed. The provinces of Chumphon, Nakhon Si Thammarat, Surat Thani, Trang, Krabi and Phatthalung had the worst flooding. Eighty districts in eight provinces were declared disaster areas, with a million people affected.
The Thai Navy evacuated tourists from the resort islands of Koh Tao and Koh Samui; an estimated 13,000 tourists were stranded on Koh Samui. Flights into the area were grounded, and hundreds of passengers were stuck at airports in Bangkok waiting for the waters to subside.