It’s hard to answer exactly when is the best time to visit Vietnam because the country’s climate is very diverse. From the North to the Central then the South, ones may go through chilly mountaintops, sunny coastline, cool highland and steamy jungle. Thanks to this diversity and opposing monsoon pattern among the three region, there is always a high season somewhere in Vietnam throughout a year.
The North is the coolest region of Vietnam where its seasons are clearly divided into four seasons: spring, summer, fall and winter. Amongst which, rainy season occur from summer to autumn while dry season falls between the other two. Winter in Northern Vietnam usually bring extremely cold but dry weather, especially in the Northwest altitudes like Spa, Dien Bien or Lao Cai where snow falling occasionally in sub-zero condition. Hanoi and its surrounding province like Ninh Binh, Hai Phong or Quang Ninh has a milder climate in winter but much hotter and wetter with high humidity (80% on average) in rainy season (May-October) should worry things.
Best time to visit the North: from October to April
Reason: when this area of Vietnam having its driest days and most favored temperature. This also includes your opportunity to enjoy the most festive time of a year in Vietnam when Tet Holiday takes place.
The central coastal area occupies the most beautiful beaches of Vietnam where monsoon season is opposed to that of the North. Hence, while the North having its dampest month, from June to October, this area going through its driest days and vice-versa. During its damp season, the area suffers from severe flood which damage uncountable properties and money annually. In general, although the Central Coast has both hot and cold season, its climate more likely to resemble steam climate of the South.
In opposite to the great heat of the Central Coast, the Central Highland, expanding from the inland to Southern end of Truong Son Mountain (Annamite Range), possesses temperate climate with its precipitation double fold of the country’s average. Highland areas like Da Lat and Pleiku are the two best representative of this kind of weather. Dry months seem to be more favored by travelers, lasting from November to March.
Best time to visit the central: from June to October
Reason: to avoid constant rainy days and enjoy sunshine on beaches.
The area includes Ho Chi Minh City and the vast Mekong Delta Zone is freaking hot with only one dry and one rainy season occurs between December-April and May-November respectively. Average temperature recorded in this steamy hot zone has been recorded is from 21 to 32 Degree Celsius. February and March should be ideal to visit Southern Vietnam since its heat is not too high while the rainfall stays at its lowest rate.
Best time to visit the South: February - April
Reason: dry and warm weather and many festivals will take place
Read more: Guide to Best time to visit Vietnam