October in Santa Marta is the rainiest and the cloudiest month of the year. In October, the weather in Santa Marta is typically warm. Average daily high temperature in October is about 27 degrees above zero. On average, Santa Marta has 21 rainy, 7 cloudy, 2 partly cloudy, and 1 sunny day in October. The rains are usually heavy. October as well as September is considered the most uncomfortable time to visit Santa Marta.