Weather is probably a major factor when you plan your trip to South Tangerang, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually September and October, with an average temperature of 28°C, while the coldest months are July and August, with an average of 27°C. The rainiest months in South Tangerang are February, January, March and December, with each month seeing an average of 289 mm of rainfall.