Tan An Long An has a tropical monsoon climate with two seasons per year: dry season from December through April, rainy season from May through November. It rains more at the end of the rainy season in October and November. The hottest month of the year is April where for several weeks the temperatures reach 36oC or more daily.
Thanh Son District, Phu Tho Province, has a tropical monsoon climate: summer from April through July, autumn from late August through October, winter from November through February, spring from February through March. From June through October, there may be typhoons that cause flash floods or landslides in Thanh Son.
Thu Dau Mot Binh Duong has a tropical monsoon climate with two seasons per year: dry season from December through April, rainy season from May through November. It rains more at the end of the rainy season in October and November. The hottest month is normally April.
Tuy Hoa Phu Yen has a tropical monsoon climate with two seasons per year: dry season from late February through July, rainy season from late August through January. From December through January, Tuy Hoa experiences cool temperatures (18-22oC) and from May to August Tuy Hoa has hot temperatures (28-40oC).
Uong Bi Quang Ninh Province has a tropical monsoon climate: summer from May through July, autumn from late August through October, winter from November through February, spring from February through April. From June through October or sometimes November, Quang Ninh may be affected by tropical depressions or typhoons.
Viet Tri District, Phu Tho Province, has a tropical monsoon climate: summer from April through July, autumn from late August through October, winter from November through February, spring from February through March. From June through October, there may be typhoons that cause flash floods or landslides in Viet Tri.
Vinh Yen Vinh Phuc has a tropical monsoon climate with four seasons per year: spring from late February through March, summer from late April through August, autumn from August through October and winter from November through January.

Ba Vi Ha Tay has a tropical monsoon climate with four seasons per year: spring from late February through March, summer from late April through August, autumn from August through October and winter from November through January.
Phong Chau District, Phu Tho Province, has a tropical monsoon climate: summer from April through July, autumn from late August through October, winter from November through February, spring from February through March. From June through October, there may be typhoons that cause flash floods or landslides in Phong Chau.
Yen Lap District, Phu Tho Province, has a tropical monsoon climate: summer from April through July, autumn from late August through October, winter from November through February, spring from February through March. From June through October, there may be typhoons that cause flash floods or landslides in Yen Lap.
Song Thao District, Phu Tho Province, has a tropical monsoon climate: summer from April through July, autumn from late August through October, winter from November through February, spring from February through March. From June through October, there may be typhoons that cause flash floods or landslides in Song Thao.
Ha Nam has a tropical monsoon climate: summer from May through July, autumn from late August through October, winter from November through February, spring from February through April.