Weather in London in December
December in London is cold with average temperatures around 4.9°C (40.8°F). Moderate rainfall of 71mm spread over 13 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
7.4°C
45.3°F
Low
2.5°C
36.5°F
Precipitation
71 mm
2.8 inches
~13 rainy days
Conditions
Humidity
94%
Comparison to Adjacent Months
December is 2.6°C cooler than November.