Weather in Red River Delta is characterized by the tropical climate with four seasons: spring, summer, fall and winter. Weather in this region is also diversified by the difference in topography creating various natural landscapes.
Cat Ba weather is portrayed by characteristics of tropical monsoon climate. There are two main seasons in Cat Ba: wet season and dry season. Yet, it is possible to distinguish four small distinct seasons in Cat Ba through changes of landscapes.
Haiphong weather is portrayed by the tropical monsoon climate with a cold dry winter and a hot humid summer. The average temperature in Haiphong is about 32°C in summer and 20°C in winter. It is rainy most from May to October.
Hanoi weather is characterized by tropical climate with the influence of tropical monsoon, hot and rainy summer, and cold and dry winter. Hot and rainy season in Hanoi runs from May to September, while cold and dry one lasts from April to October.
Ninh Binh weather is portrayed by features of the tropical monsoon climate. Weather in Ninh Binh is also described with for distinct seasons: spring, summer, autumn and winter. The average temperature is about 23°C.