August in Kapan is the warmest month of the year. In August, the weather in Kapan is typically warm. Average daily high temperature in August is about 25 degrees above zero. On average, Kapan has 28 sunny, 2 partly cloudy, and 1 rainy day in August. The rains are usually light. August as well as June, July, and September is considered the most comfortable time to visit Kapan.