Visiting local bars in Chaiyaphum is better when you know what the weather holds. These rainfall averages and temperatures can help you determine the best time for bar hopping. The hottest months are usually April and March with an average temp of 84°F, while the coldest months are January and December with an average of 76°F. The rainiest months in Chaiyaphum are September, August, July, and May, with each month seeing an average of 11 inches of rainfall.