Taking into account the local weather in Bantarpanjang is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually October and September with an average temp of 76°F, while the coldest months are August and July with an average of 75°F. The rainiest months in Bantarpanjang are December, February, March, and January, with each month seeing an average of 24 inches of rainfall.