Hoi An General information The buildings and street plans of The Ancient Town of Hoi An reflect the influences, both indigenous and foreign, that combined to produce this unique heritage site. In the first century, the city possessed the largest harbor in Southeast Asia and was known as Lam Ap Pho (Champa City). Between the seventh and tenth centuries, the Cham (people of Champa) controlled the strategic spice trade and with this came tremendous wealth. The former harbor town of the Cham, remained an important Vietnamese trading center throughout the sixteenth and seventeenth centuries where Chinese from various provinces, Japanese, Dutch and Indians settled. During this period of the China trade, the town was called Hai Pho (Seaside Town) in Vietnamese. Originally, Hai Pho was a divided town with the Japanese settlement across the “Japanese Bridge” (16th-17th century). The bridge is a unique, covered structure built by the Japanese. It is the only known covered bridge with a Buddhist pagoda attached to one side. Weather Summary Hoi An has a tropical climate and sees significant rainfall during most months. There is risk of typhoon from late October to mid-December with most precipitation falling in October, however the rainy season continues until February. March experiences the least amount of rainfall which leads Hoi An into the dry season from March to September. The average temperature in Hoi An is 25.9°C (78.62°F), the warmest month of the year is June with temperatures averaging 29.4°C (84.92°F) and the lowest temperatures of the year are seen in January with an average of 21.6°C (70.88°F).