The weather in Surat Thani, Thailand is characterized by a warm and humid climate year-round. The hottest months are typically March to May, with temperatures often reaching up to 36°C during the day, while the coolest months are January and December, with temperatures ranging from 19-32°C. June to August is also hot, with temperatures consistently above 35°C. From September to November, the temperature cools slightly, but remains warm throughout the year. Overall, Surat Thani's climate is tropical, with high humidity levels and plenty of sunshine throughout the year.