Vietnam is located in both a tropical and a temperate zone. It is characterized by strong monsoon influences, but has a considerable amount of sun, a high rate of rainfall, and high humidity.
Temperatures are high all year round for southern and central Vietnam; but northern Vietnam has a definite cooler season as the north monsoon occasionally advects cold air in from China.
Frost and some snow may occur on the highest mountains in the north for a few days a year. In the southern Vietnam, the lowlands are sheltered from outbreaks of colder northerly air and the dry season is warm to hot with much sunshine.
Bài 2;Vietnam is a tropical country. The climate is often hot and humid. In North Vietnam there are four seasons: spring, summer, autumn and winter. In summer it is hot and sometimes very hot but in winter it is very cold. In South Vietnam there are only two seasons: the rainy season and the dry season. It rains a lot from May to November. In the dry season it is very hot. Sometimes there are storms in the North and floods in the South.
Any way I prefer spring because the weather at that time is very nice, and the landscapes are very beautiful.