August in Ollantaytambo is the windiest month of the year. In August, the weather in Ollantaytambo is typically warm. Average daily high temperature in August is about 16 degrees above zero. On average, Ollantaytambo has 20 rainy, 7 partly cloudy, and 4 sunny 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 Ollantaytambo.