Monthly climate ·London weather in December
In December, London averages around 9° by day and 4° at night, with 12 rain days a month — about a 37% chance of rain on any given day.
By day
9°C
At night
4°C
Daily rain chance
37%
Rain days a month
12
Monthly precipitation
67 mm
Sunshine hours a day
3.4
Average of 2016–2025 (Open-Meteo archive). Typical climate — not a forecast.
Is December a good time to visit London?
December is cold in London — around 9° by day and 4° at night on average. Pack warm clothing and keep plans flexible.
Every month in London
Frequently asked questions
- What is the weather in London in December?
- In December, temperatures in London average between 4° at night and 9° by day, with 12 rain days a month (average of 2016–2025).
- How much rain falls in London in December?
- London gets about 67 mm of rain in December on average, spread over roughly 12 rain days.
- Is December a good time to visit London?
- December is cold in London — around 9° by day and 4° at night on average. Pack warm clothing and keep plans flexible.