October in Sitges is the cloudiest month of the year. In October, the weather in Sitges is typically warm. Average daily high temperature in October is about 21 degrees above zero. On average, Sitges has 12 sunny, 11 rainy, 7 partly cloudy, and 1 cloudy day in October. The rains are usually heavy. October as well as January, February, March, and April is considered the most uncomfortable time to visit Sitges.