October in Tybee Island is the sunniest month of the year. In October, the weather in Tybee Island is typically warm. Average daily high temperature in October is about 23 degrees above zero. On average, Tybee Island has 20 sunny, 6 partly cloudy, and 5 rainy days in October. The rains are usually heavy. October as well as April, May, and November is considered the most comfortable time to visit Tybee Island.