Weather In London October 2025. Weather ☀ ⛅ london ☀ ⛅ october ☀ ⛅ information on temperature, sunshine hours, water temperature & rainfall in october for london. Check the temperatures, chance of rain and more in london during october.

30dayweather long range weather forecasts predict ideal conditions for a storm. Expect 15°c daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in greater london in october.