London Weather in December – Average Temperature and Rainfall
- High
- 9.0°
- Low
- 4.0°
- Rainfall
- 67 mm
- Rainy season
- 12d
- max
- 14.8°
- min
- -5.5°
December
- Early
- 8.6° 24.4 mm
- Mid
- 8.9° 22.1 mm
- Late
- 9.4° 20.4 mm
Summary
The climate figures for London are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 719 mm.
The rainy season runs –. The wettest month is October with 78.3 mm across 12 rain days; the driest is April at just 40.2 mm.
The hottest month is July (average high 22.9°C) and the coolest is January (7.6°C).
The most comfortable time to visit London is April — less rain and milder heat.
Monthly averages
Common questions
Will it rain in London today?
No. The chance of rain today is only about 0%.
How hot is it in London today?
Between 12°C and 22°C, with a felt maximum of 21°C.
What is the weather in London tomorrow?
Tomorrow: overcast, 16–23°C, with a 0% chance of rain.