What is the Halong Bay Vietnam weather September?

Halong Bay Vietnam weather September offers a good balance of warm weather, comfortable humidity, and fewer crowds compared to the peak summer months, though you should still be prepared for occasional rain. You can expect milder temperatures, with an average around 27-28°C.

Is there any public holiday in Vietnam in September?

September 2nd commemorates President Ho Chi Minh's declaration of Vietnam's independence from French colonial rule in 1945. Therefore, if you are planning to visit Halong Bay in September, especially around the 1st to the 4th of September, be aware that it will likely be a peak travel period for locals, potentially leading to larger crowds and the need to book accommodations and tours well in advance.