Hottest (avg)
#11 / 12
London in December
December weather, climate averages, and packing tips.
Avg High
Avg Low
Rain
Daylight 8h
What to expect
As winter continues, December brings, where temperatures are dropping quickly. Thermometers typically reach 8°C / 46°F, with evenings cooling to 3°C / 37°F.
Skies are often overcast, and you should be prepared for regular rainfall (approx. 14 wet days). With only around 7.9 hours of daylight, the sun sets early, so plan outdoor activities for the morning or midday.
December in context
How it compares to the rest of the year in London.
Wettest (avg)
#3 / 12
Daylight Hours
#12 / 12
Windiest (avg)
#3 / 12
Highest UV
#12 / 12
Most Humid
#1 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 7.9 hours
- UV index (max)
- 1
- Typical sun hours
- 07:58 – 15:53
Rain & Snow
- Total
-
- Rainy days
- 14
- Cloud cover
- 73%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 88%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is December a good time to visit London?
Typical December days in London reach highs of 8°C (46°F) with nights around 3°C (37°F). It usually feels chilly by day and cold after dark. It is among the wetter months, so it is wise to have some indoor backup plans or flexible activities.
What are temperatures like in December?
Daytime temperatures in December typically peak near 8°C (46°F), while nights drop to around 3°C (37°F). Expect chilly afternoons and cold evenings.
How much does it rain in December?
Rainfall in December averages 60 mm (2.4 in) across roughly 14 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in December?
You can expect about 8 hours of daylight in December. Sunrise is typically around 07:58 and sunset near 15:53. Daylight is quite limited, and it can feel like a short-day season.
How strong is the sun in December?
UV levels are usually low (around 1), so standard sun protection is enough.
Is it windy in December?
In December, average wind speeds are around 16 km/h (10 mph), with gusts on the windiest days reaching about 67 km/h (42 mph). On the ground, it is it is a notably windy place, and strong gusts are fairly common.