Weather will likely play an important role when you plan your trip to Karawang, and keep 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 temp of 82°F, while the coldest months are July and August with an average of 80°F. The rainiest months in Karawang are February, January, March, and December, with each month seeing an average of 13 inches of rainfall.