Planning for the weather is a good way to make your trip to Koutaba relaxing and enjoyable, especially when you're splurging. The hottest months are usually February and March with an average temp of 75°F, while the coldest months are July and August with an average of 68°F. The rainiest months in Koutaba are August, September, July, and June, with each month seeing an average of 11 inches of rainfall.