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London in December: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in London in December will be like? Take a look at our weather guide for London, based on historical data.
Check flight prices to London on Avionero:
December

Weather in London in December 2024

OK Weather
Chill
☁️
Cloudy
December could be a good time to visit London, as the weather is generally fine. The average high temperature is around +46°F, and there are typically 4 sunny days in December. However, expect about 7 rainy days, and total monthly rainfall of approximately 58 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • December is usually the wettest month of the year in London;

Average weather

☀️
+46°F
Avg. max. temperature
+9°F
Min.
+61°F
Max.
58 mm
Total precipitation
81%
Avg. humidity
3 m/s
Avg. wind
4 ☀️
Sunny Days
20 ⛅️
Cloudy
7 🌦
Rainy
Our opinion: London has OK weather in December.

Average temperature in London in December

Here are the expected maximum, average and minimum temperatures in London for December based on the historical data.
Last Year
Historical Data

Going from a maximum of +57°F during the day to a minimum of +25°F during the night, the temperature in December averages around +46°F.

The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +50°F to +57°F.

Is London warm or cold in December?

London is typically chill in December.

Maximum temperatures go down compared to the previous month from +52°F to +46°F. The minimum temperature also goes down from +43°F to +39°F.

Pack a jumper and a jacket as there will be cooler temperatures.

December is one of the coolest months in London, here is the comparison with other months:

Climate in London in December

London weather looks like this, on average, in December and the surrounding months.
NovemberDecemberJanuary
Avg. temperature
+52°F+46°F+46°F
Min. temperature
+25°F+9°F+12°F
Max. temperature
+64°F+61°F+61°F
Rainfall
60 mm58 mm53 mm
Wind
3 m/s3 m/s3 m/s
Humidity
81%81%80%
Air pressure
1012 HPa1013 HPa1014 HPa
Sunny days
443
Cloudy days
192020
Rainy days
777
Snowy days
001

December weather is still as ok as in November. It’s getting colder in December. From +52°F in the day, the average maximum temperature lowers to +46°F. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 60 mm to 58 mm. Humidity levels don’t change as the month goes on, averaging around 81%. The average wind speed doesn’t change much during December, staying around 3 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.

January brings much the same weather, it remains ok.

Wind

Wind speed in London in December based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in London is gradually increasing during December, going from 1 m/s to 6 m/s over the course of the month.

Rain

Amount of rainfall in mm during December in London based on historical data.
Last Year
Historical Data
Typically, there is a 52% chance of rain on an average day in December, with total rainfall of approximately 80 mm. The maximum amount of rainfall per day is around 22 mm, which is considered light rain. December is a pretty wet month with over 16 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
December is one of the rainiest months in London, here is a comparison with other months, total mm:
London wettest month is October, where a typical day has a 26% chance of precipitation and 67 mm of rainfall per day. February, on the other hand, is the driest month with a mere 17% chance of precipitation and 44 mm of rainfall per day.

Snow

Amount of snow in mm during December in London based on historical data.
Last Year
Historical Data
Typically, there is a 0% chance of snow on an average day in December, with a total monthly snowfall of approximately 2 mm.

December is one of the snowiest months in London.

Here’s how December is compared with other months in the amount of snow, total mm:

How was the weather last December in London?

This is the weather in London in December 2023:
1 December
☁️
+49°F
2 December
☁️
+46°F
3 December
☁️
+46°F
4 December
☁️
+42°F
5 December
☁️
+47°F
6 December
☁️
+46°F
7 December
☁️
+41°F
8 December
☀️
+40°F
9 December
☀️
+39°F
10 December
☀️
+39°F
11 December
🌫️
+34°F
12 December
☁️
+33°F
13 December
☁️
+34°F
14 December
☁️
+33°F
15 December
☀️
+34°F
16 December
☀️
+37°F
17 December
☁️
+41°F
18 December
🌧️
+49°F
19 December
🌧️
+56°F
20 December
🌧️
+56°F
21 December
☁️
+52°F
22 December
☁️
+53°F
23 December
☁️
+55°F
24 December
☀️
+51°F
25 December
🌧️
+53°F
26 December
☀️
+51°F
27 December
🌧️
+51°F
28 December
🌧️
+53°F
29 December
☁️
+50°F
30 December
🌧️
+56°F
31 December
🌧️
+58°F
In December 2023 London had 7 sunny days, 15 cloudy days, and 8 rainy days. The average maximum temperature was +46°F, with an absolute maximum of +57°F and a minimum of +34°F. The average humidity was 88%, with a maximum of 98% and a minimum of 66%. The average wind speed was 3 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in December?

Climate Change Over the Years

This is how London climate has changed over the last 43 years.

The climate in London in December has not changed that much over the last 43 years.

The average temperature was the lowest in 1981 (+39°F) and the highest in 2015 (+57°F). The driest year was 2016 with only 11 mm of rainfall, and the wettest year was 2019 with 145 mm.

FAQ

Frequently asked questions about the weather in London in December:

Is December a good time to visit London?

It’s always a good time to visit London, but the weather is changeable in December, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in London in December?

Not really, December is not the best time to sunbathe, unless you visit a local solarium.

Is London rainy in December?

London is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in London in December?

Usually, it’s not very sunny in London in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in United Kingdom

Check out the weather for other cities in United Kingdom.

Monthly weather in London

Source of the data

For this page, we’ve looked at the typical weather in London, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.