If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Gading Serpong: The hottest months are usually October and September with an average temp of 82°F, while the coldest months are July and August with an average of 81°F. The rainiest months in Gading Serpong are February, December, March, and January, with each month seeing an average of 11 inches of rainfall.