Taking into account the local weather in Brangsong is an important factor for planning your visit, especially if you plan to spend your trip poolside. 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 80°F. The rainiest months in Brangsong are January, December, February, and March, with each month seeing an average of 15 inches of rainfall.