August in Marianske Lazne is the sunniest month of the year. In August, the weather in Marianske Lazne is typically warm. Average daily high temperature in August is about 20 degrees above zero. On average, Marianske Lazne has 13 sunny, 13 partly cloudy, and 5 rainy days 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 Marianske Lazne.