Visiting local bars in Pangkalan Bun is more fun in good weather. These rainfall averages and temperatures can help you decide the best time for bar hopping. The hottest months are usually October and September with an average temp of 80°F, while the coldest months are July and August with an average of 80°F. The rainiest months in Pangkalan Bun are March, November, April, and December, with each month seeing an average of 13 inches of rainfall.