Remember, north Vietnam has four seasons while the south basically has only two, wet and dry. Wet season is south is normally from September through December.
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| Vietnam best time of year (review and guide) |
Anytime is actually good time for Vietnam due to its geographic north and south spread. In the south after January will be more dry, while up north cooler weather will dominate during winter times.
But it depends. In the South, including Saigon, the dry season is from December to April. The rest of the year it’s rainy especially in October when there can be flooding. That said, even in rainy season it may just rain hard for one hour a day and then be okay the rest of the day. The plus also is that after rains humidity goes way down. In the North, December and January can be pretty cold.
And I can say that: The best time to visit Vietnam is spring (February to April) and autumn (August to October). The temperatures are more moderate and rainfall is lighter. In spring, March and April have the lowest rainfall across all destinations and temperatures are pleasant, though still cool in the far north.
If you plan to see the whole country, deciding on the best time to visit Vietnam can be complicated. Vietnam is over 1,000km (600 miles) in length and has huge regional diversity, however as a truly year-round destination, travel to any part of Vietnam during any season is possible. Some more are information are as follow:
Sapa: March to June, September and October. The cooler climate makes Sapa ideal and when the weather is warmer and days are mainly sunny. Read more: The best time to visit Sapa
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| Vietnam best time of year (review and guide) |
Hanoi: Year around. Hot and humid in Summer, cool and dry in winter. As a Vietnam lover for 5 times visiting and living there, I realize that we should visit Vietnam in September of January, February and March. It's not too hot, not too cold, not too rainy and no moonsoon. September is autumn in Hanoi, the HoanKiem lake and atmosphere around Hanoi city are romantic. September's also great for beaches in the Central. Great idea. And January, February, March are spring. The weather is cool and beautiful. But it's also high season in Vietnam.Read more: Best time to visit Hanoi
Halong bay: March to June , September and October. Spring and Autumn offer the best chance of warm days and clear skies. Read more: Best time to visit and travel Halong Bay
Hue: January to August. Heavy rains in October and November and hot days from may to August.
Hoi An: February to July. When rest of the Vietnam experiences the summer down pours, Hoi An remains relatively hot and dry until July, perfect for a beach escape.
Nha Trang: February to August. Warm year round, sunny days abound from February to August. Read more: The best time to visit Nha Trang
Dalat: Year Around. The alpine region is temperate year- round and ideal for escaping the summer heat.
Saigon: Year round. Speaking for the South Vietnam especially Ho Chi Minh City. November and December for some awesome weather and nice Christmas decoration. Definitely the end of January and the beginning of February, don't you dare miss the Vietnamese Tet! Don't come in the summer because it has high airfare and it's raining a lot.
Vietnam best time of year (review and guide) - http://www.wikichoices.com/2016/12/vietnam-best-time-of-year.html