March in Guardalavaca is the sunniest and the coldest month of the year. In March, the weather in Guardalavaca is typically warm. Average daily high temperature in March is about 26 degrees above zero. On average, Guardalavaca has 21 sunny, 8 partly cloudy, and 2 rainy days in March. The rains are usually moderate. March as well as February is considered the most comfortable time to visit Guardalavaca.