Visiting local bars in Poptun is more fun in good weather. These temperatures and rainfall averages can help you choose the best time for bar hopping. The hottest months are usually April and May with an average temp of 78°F, while the coldest months are January and February with an average of 71°F. The rainiest months in Poptun are September, October, June, and August, with each month seeing an average of 10 inches of rainfall.