August in Olinda is the coldest month of the year. In August, the weather in Olinda is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Olinda has 16 rainy, 11 sunny, and 4 partly cloudy days in August. The rains are usually moderate. August as well as January, February, March, and April is considered the most uncomfortable time to visit Olinda.