In October, the weather in Wilhelmshaven is typically warm. Average daily high temperature in October is about 13 degrees above zero. On average, Wilhelmshaven has 17 rainy, 9 cloudy, 4 sunny, and 1 partly cloudy day in October. The rains are usually moderate. October as well as January, February, March, and November is considered the most uncomfortable time to visit Wilhelmshaven.