The BKMG breaks down the Bali weather map into 15 zones.
According to BKMG, the rainy season began in October in parts of Tabanan, Ginayar, the middle of Badung and a part of Bangli. During the first to third weeks of October the rainy season will commence in the southern portions of Jembrana, parts of Tabanan, eastern Buleleng, eastern and northern Gianyar, northwest Bangli.
The region of Bali receiving the least rainfall is the Nusa Penida islands, receiving rain for only 3 months of the year due to reasons of topography and the low amount of vegetative cover.
Meanwhile, Tabanan traditionally receives the largest amount of rainfall in Bali, reflected in the high level of rice cultivation found in that region.
