August in Rishikesh is the rainiest and the cloudiest month of the year. In August, the weather in Rishikesh is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Rishikesh has 27 rainy and 4 sunny days in August. The rains are usually heavy. August as well as July is considered the most uncomfortable time to visit Rishikesh.