Thailand in November
November marks the start of the dry high season on the west coast (Phuket, Krabi) — but right at this time, Koh Samui can still be wet, since its rainy season runs until December.
Weather by Region
Phuket/Krabi: the dry, pleasant season begins. Koh Samui/Koh Phangan: still within their rainy season, which usually runs until December.
Crowds and Prices
Start of high season — prices and crowds begin gradually rising toward December.
Recommended Destinations for November
Who Should Visit
Anyone planning the Andaman side (Phuket/Krabi) — excellent timing. Anyone planning Koh Samui should check the forecast closely, since it's still its rainy season.