Andaman Sea

West of the Mergui Archipelago, the Andaman Sea forms a broad passage between the Malay Peninsula and the Andaman Islands. Hundreds of islands fringe the Tenasserim coast to the east, sheltering channels used by local boats. Farther offshore, vessels are exposed to the seasonal monsoon. The southwest winds bring the rainy season, while the northeastern winds of the drier months alter the conditions for travel across the sea.