In August, the weather in Sunnyside-Tahoe City is typically warm. Average daily high temperature in August is about 25 degrees above zero. On average, Sunnyside-Tahoe City has 24 sunny, 4 rainy, and 3 partly cloudy days in August. The rains are usually light. August as well as June, July, and September is considered the most comfortable time to visit Sunnyside-Tahoe City.