August in Asuncion is the windiest month of the year. In August, the weather in Asuncion is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Asuncion has 17 sunny, 12 partly cloudy, and 2 rainy days in August. The rains are usually light. August as well as September is considered the most comfortable time to visit Asuncion.