August in Baní is the hottest month of the year. In August, the weather in Baní is typically hot. Average daily high temperature in August is about 28 degrees above zero. On average, Baní has 17 rainy, 13 sunny, and 1 partly cloudy day in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Baní.