Visiting local bars in Chalong is more fun when you know what the weather holds. These temperatures and rainfall averages can help you decide the best time for bar hopping. The hottest months are usually March and April with an average temp of 83°F, while the coldest months are January and February with an average of 81°F. The rainiest months in Chalong are September, October, July, and August, with each month seeing an average of 14 inches of rainfall.