Weather is probably a major factor when you plan your trip to Subang, 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 27°C, while the coldest months are July and August, with an average of 26°C. The rainiest months in Subang are December, March, February and January, with each month seeing an average of 348 mm of rainfall.