January weather forecast in London

January in London is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in London is typically freezing. Average daily high temperature in January is about 1 degree below zero. On average, London has 10 cloudy, 8 partly cloudy, 7 snowy, 3 rainy, and 3 sunny days in January. The snowfalls are usually moderate. January as well as February, March, April, and October is considered the most uncomfortable time to visit London.