In August, the weather in Zelenogorsk is typically warm. Average daily high temperature in August is about 19 degrees above zero. On average, Zelenogorsk has 21 rainy, 7 sunny, 2 partly cloudy, and 1 cloudy day in August. The rains are usually moderate. August as well as January, February, April, and May is considered the most uncomfortable time to visit Zelenogorsk.