Mekong Delta Weather. Weather in Mekong River Delta is characterized by many features between tropical and equatorial climate. During the year the average temperature of the Southwest region is about 28 degrees Celsius and has a year-round stability. The weather is rainy and harmonious and very little affected by storms and natural disasters. The climate is divided into 2 seasons, clearly the rainy season and the dry season. May to November is a long rainy season, the rest from December to April is the dry season. Especially during the year, the floating season starts from July to November according to the solar calendar and there are floating seasons in September and October, depending on each year. Tourism in the Southwest region every season has its own characteristics, beauty and personality, attracting people.



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