Weather will likely play an important role when you plan your trip to Song Cau, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually June and August with an average temp of 83°F, while the coldest months are January and February with an average of 75°F. The rainiest months in Song Cau are November, October, December, and September, with each month seeing an average of 13 inches of rainfall.