August in Ussuriysk is the rainiest and the warmest month of the year. In August, the weather in Ussuriysk is typically warm. Average daily high temperature in August is about 25 degrees above zero. On average, Ussuriysk has 14 rainy, 7 cloudy, 5 sunny, and 5 partly cloudy days in August. The rains are usually heavy. August as well as January, March, and November is considered the most uncomfortable time to visit Ussuriysk.