January in Olbia is the windiest and the cloudiest month of the year. In January, the weather in Olbia is typically warm. Average daily high temperature in January is about 11 degrees above zero. On average, Olbia has 14 partly cloudy, 10 sunny, 6 rainy, and 1 cloudy day in January. The rains are usually moderate. January as well as February, March, and November is considered the most uncomfortable time to visit Olbia.