January in Positano is the rainiest, the windiest, the cloudiest, and the coldest month of the year. In January, the weather in Positano is typically warm. Average daily high temperature in January is about 12 degrees above zero. On average, Positano has 17 rainy, 10 sunny, 2 cloudy, and 2 partly cloudy days in January. The rains are usually heavy. January as well as February is considered the most uncomfortable time to visit Positano.