October in Guardalavaca is the rainiest month of the year. In October, the weather in Guardalavaca is typically hot. Average daily high temperature in October is about 29 degrees above zero. On average, Guardalavaca has 19 rainy, 10 sunny, and 2 partly cloudy days in October. The rains are usually heavy. October as well as September is considered the most uncomfortable time to visit Guardalavaca.