The best time to visit Vietnam is any time. One of the principal tourist lures of the country is its equitable climate. There are not any extremes of climate here, nor are there extremes of temperatures here. What you have are three principal seasons, hot, rainy and cold, with variations in temperature and the rainfall across the various regions of the country.

Vietnam is a country with widespread differences in the altitude and there arises temperature and seasonal variations in the climate of the various regions due to this reason. Thus, in the mountainous regions of the country, you have relatively cooler climates and the temperatures during the winter can plummet below the freezing point. If the mere thought is sending shivers down your spine, then you know when to go to Vietnam: definitely not in the winter.

In the northern part of Vietnam, the winter months from November to April are cold and clammy and the summers are hot (the summer months are from May to October), but bearably so.
If your Vietnam vacations are in the southern part of the country, avoid the sweltering summer season from end-February to May. Down south, the wettest months are from June to August, and these are definitely not the best time to visit Vietnam. December to April is dry around these parts.

If you are wondering when to go to Vietnam, forget about the months from July to November. These are the typhoon months and you stay steer clear off them.

Plan your tours to Vietnam with a consideration to the Vietnamese seasons. After all, you would not want the rains to play the spoilsport or the tropical storms tearing down your itinerary.