August in Hemsin is the rainiest, the cloudiest, and the warmest month of the year. In August, the weather in Hemsin is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, Hemsin has 26 rainy, 3 sunny, and 2 partly cloudy days in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Hemsin.