Weather is probably a major factor when you plan your trip to Sentul City, 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 81°F, while the coldest months are July and August with an average of 79°F. The rainiest months in Sentul City are February, March, January, and December, with each month seeing an average of 13 inches of rainfall.