August in Kaluga is the sunniest month of the year. In August, the weather in Kaluga is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Kaluga has 14 sunny, 9 partly cloudy, 7 rainy, and 1 cloudy day in August. The rains are usually light. August as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Kaluga.