 The highest rainfall is around 2712–3670 mm which happens in the rainy season months of September to May cover 50% area of the western part of the Pandeglang Regency and rainfall 335–453 mm in the month from September to May cover 50% area of the northern part of the Serang Regency, the entire area of the city of Cilegon, 50% area of the Tangerang Regency and the entire area of the city of Tangerang.In the dry season, the highest rainfall of 615–833 mm in April–December cover 50% area of the northern part of the Serang Regency, the whole area of the city of Cilegon, 50% area of the northern part of the Tangerang Regency and the entire area of the city of Tangerang, while the bulk the lowest rainfall in the dry season as much as 360–486 mm in the month of June to September 50% coverage area of southern Tangerang Regency and 15% area of southeastern Serang Regency.Banten Province is subdivided into four regencies ("kabupaten") and four autonomous cities ("kota"), listed below with their populations at the 2010 and (intermediate) 2015 Censuses, together with the latest (mid 2019) official estimates.