In October, the weather in Cleethorpes is typically warm. Average daily high temperature in October is about 13 degrees above zero. On average, Cleethorpes has 14 rainy, 10 cloudy, 4 sunny, and 3 partly cloudy days in October. The rains are usually moderate. October as well as January, February, March, and June is considered the most uncomfortable time to visit Cleethorpes.