Visiting local bars in Poptun is more fun when the weather is good. These temperatures and rainfall averages can help you determine the best time for bar-hopping. The hottest months are usually April and May, with an average temperature of 25°C, while the coldest months are January and February, with an average of 22°C. The rainiest months in Poptun are September, October, June and August, with each month seeing an average of 244 mm of rainfall.