August in Puerto Aventuras is the hottest month of the year. In August, the weather in Puerto Aventuras is typically hot. Average daily high temperature in August is about 30 degrees above zero. On average, Puerto Aventuras has 17 rainy, 13 sunny, and 1 partly cloudy day in August. The rains are usually heavy. August as well as June, July, September, and October is considered the most uncomfortable time to visit Puerto Aventuras.