London weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: May – September
What is the weather like in London in December?
In December, London is cold: daytime highs average 8 °C, and nights cool down to about 3 °C. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 11 rainy days and 57 mm in total. All in all, December is not an ideal month for a holiday in London.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 27 | 14 | 16 |
| Day | 10° | 8° | 7° |
| Night | 5° | 3° | 2° |
| Sun | 2 h | 2 h | 2 h |
| Rain days | 11 | 11 | 11 |
More details for December
- Daylight
- 7 h 53 min07:59 – 15:52
- UV index
- 0 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 22 km/haverage daily peak
- Cloud cover
- 73 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snow
- Time zone
- UTC+0Europe/London
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %48 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Warm jacket
- Rain jacket or umbrella
London in December: quick answers
Is London hot in December?
No. In December, London is cold: daytime highs average 8 °C and nights drop to about 3 °C.
Does it rain much in London in December?
Rain is frequent, with about 11 rainy days and 57 mm in total.
London month by month
The whole year in LondonAll destinations: United KingdomWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)