Visiting local bars in Koidu Town 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 February and March with an average temp of 81°F, while the coldest months are December and January with an average of 76°F. The rainiest months in Koidu Town are September, August, July, and October, with each month seeing an average of 20 inches of rainfall.