In August, the weather in Svetlogorsk is typically warm. Average daily high temperature in August is about 12 degrees above zero. On average, Svetlogorsk has 15 rainy, 8 cloudy, 5 sunny, and 3 partly cloudy days in August. The rains are usually moderate. August as well as January, February, March, and May is considered the most uncomfortable time to visit Svetlogorsk.