The heaviest rainfall ranges from during the rainy season from September to May, covering half of the western Pandeglang Regency. Rainfall from covers half of Tangerang Regency, the northern Serang Regency, and the cities of Cilegon and Tangerang. In the dry season (from April to December), the peak rainfall of covers half of the northern Serang and Tangerang Regencies and the cities of Cilegon and Tangerang. The lowest dry-season rainfall, from June to September, covers half of the southern Tangerang Regency and 15 percent of southeastern Serang Regency.
The heaviest rainfall ranges from during the rainy season from September to May, covering half of the western Pandeglang Regency. Rainfall from covers half of Tangerang Regency, the northern Serang Regency, and the cities of Cilegon and Tangerang. In the dry season (from April to December), the peak rainfall of covers half of the northern Serang and Tangerang Regencies and the cities of Cilegon and Tangerang. The lowest dry-season rainfall from June to September, covers half of the southern Tangerang Regency and 15 percent of southeastern Serang Regency.