June in Huatulco is the rainiest and the cloudiest month of the year. In June, the weather in Huatulco is typically warm. Average daily high temperature in June is about 26 degrees above zero. On average, Huatulco has 27 rainy, 2 cloudy, and 1 sunny day in June. The rains are usually heavy. June as well as July, August, and September is considered the most uncomfortable time to visit Huatulco.