August in Prague is the sunniest month of the year. In August, the weather in Prague is typically warm. Average daily high temperature in August is about 23 degrees above zero. On average, Prague has 14 partly cloudy, 12 sunny, 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 Prague.