In October, the weather in Geilo is typically cold. Average daily high temperature in October is about 1 degree above zero. On average, Geilo has 9 rainy, 9 cloudy, 7 snowy, 4 sunny, and 2 partly cloudy days in October. The rains are usually moderate. October as well as May, June, July, and August is considered the most uncomfortable time to visit Geilo.