Vietnam vacations in September fall during the rainy season, when the whole country is under the rule of the monsoon. In North Vietnam, you can hardly wait for sunny days, landscapes are covered with fog and roads are washed out. However, in the southern regions, the situation is not much better, although the rains are beginning to subside. The situation is complicated by the fact that with the onset of fall, Vietnam is hit by typhoons.
For example, on Fuquoc Islands, you'll face strong wind gusts. Take time to swim and spend time on the beach in Nha Trang and Phan Thiet. But the South China Sea during a vacation in Vietnam in the fall will be dirty and muddy, so that neither swimming nor diving will not give you much pleasure. Fans of kiting and surfing will have a great time. But be careful, as typhoons can turn a fun pastime into a very dangerous endeavor.
If your tour to Vietnam in September falls on the second day, you will get to Independence Day with its large-scale parades and fireworks. And Mid-Autumn Day will delight you with the picturesque spectacle of hundreds of sky lanterns.