August in Slonim is the sunniest month of the year. In August, the weather in Slonim is typically warm. Average daily high temperature in August is about 23 degrees above zero. On average, Slonim has 13 sunny, 10 partly cloudy, 7 rainy, and 1 cloudy day in August. The rains are usually moderate. August as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Slonim.