Vietnam has a complicated climate. In the north, autumn (Sept to Dec) is the nicest season. At this time of year it's warm, dry and sunny, though you'll need warm clothes up in the mountains and Ha Long Bay. Winter (Dec to Feb) can be surprisingly cold with temperatures as low as 10°C. Things warm up in March then get hot in May, though the rainy season starts in June and brings heavy downpours and flooding. By mid Sept, it's perfect weather.
The central region has a wet climate, particularly around Hué. The dry season lasts from Feb - May although there are occasional shock typhoons in April and May. After this it gets wetter and hotter (averaging 30°C) until the rainy season in Sept, which eases off from Nov - Jan.
The lower east coast and the south have a dry season from Dec to late April/May, and rain from May - Nov. Most rain falls in brief downpours. Daytime temperatures rarely fall below 20°C.
BY AIR: The main carriers (to Ho Chi Minh City and Hanoi) include:
There are 16 domestic airports in Vietnam, all operated by Vietnam Airlines. Most connect with both Ho Chi Minh City and Hanoi; Phu Quoc connects only with Ho Chi Minh City.
It is recommended that you have a diphtheria, Hepatitis A, Tetanus and Yellow Fever injection before going to Vietnam. Malaria protection will also be required. Click here for details.