London Weather December 2024 In Degrees. Expect 8°c daytime maximum temperatures in the shade with on average 1 hours of sunshine per day in london in december. On average, london has 12 cloudy, 10 rainy, 5.

Average daily high temperature in december is about 7 degrees above zero. Explore comprehensive december 2024 weather forecasts for london, including daily high and low temperatures, precipitation risks, and monthly temperature trends.