Visiting local bars in Kotamobagu is better in good weather. These rainfall averages and temperatures can help you decide the best time for bar hopping. The hottest months are usually September and October with an average temp of 81°F, while the coldest months are February and March with an average of 79°F. The rainiest months in Kotamobagu are January, May, December, and November, with each month seeing an average of 13 inches of rainfall.