July in Khao Lak is the cloudiest month of the year. In July, the weather in Khao Lak is typically hot. Average daily high temperature in July is about 28 degrees above zero. On average, Khao Lak has 27 rainy, 2 cloudy, and 2 partly cloudy days in July. The rains are usually heavy. July as well as April, May, June, and August is considered the most uncomfortable time to visit Khao Lak.