The weather in and around Trat is very comfortable with warm temperatures throughout the year. The region is influenced by the northeastern and southwestern winds, which sometimes limit sea transport to a group of islands particularly from May to October when the southwest monsoon blows. During this period the western coast can be wet and stormy and occasionally unsafe for ferries and smaller boats to lift anchor. However, visitors can still visit the islands via the normally more popular routes, most of which are to the northeast of Ko Chang, anyway.