Thailand in December
December is the peak of high season — dry across most of the country, pleasant temperatures, and New Year's celebrations that draw huge crowds and push prices up significantly.
Weather by Region
Phuket/Krabi: dry, pleasant season. Koh Samui/Koh Phangan: still at the tail end of their rainy season early in the month, usually improving by the end. North: cool evenings and nights.
Crowds and Prices
The absolute peak of the year, especially around New Year's. Popular hotels in Phuket and Koh Samui can fill up half a year in advance, and prices around December 31 can be especially high.
Events This Month
New Year's Eve celebrations — parties and special events on islands like Phuket and Koh Samui, with early booking essential for popular restaurants and hotels.
Recommended Destinations for December
Who Should Visit
Anyone who wants to celebrate New Year's in Thailand and is willing to book well ahead and pay a premium. Anyone flexible on dates should consider early November or January-February instead, less crowded and expensive.