Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December brings an average high-temperature of a frosty 7.8°C (46°F), subtly diverging from November's 10.4°C (50.7°F). The nights of December cool down to an average low of 3.5°C (38.3°F), subtly lower than daytime highs.Humidity
The most humid month in London is December, with an average relative humidity of 88%.Rainfall
In London, in December, during 11.1 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 151.7 rainfall days, and 370mm (14.57") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In London, United Kingdom, in December, during 1.2 snowfall days, 9mm (0.35") of snow is typically accumulated. In London, during the entire year, snow falls for 7.7 days and aggregates up to 50mm (1.97") of snow.Daylight
The month with the shortest days in London is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 7:44 am and sunset at 3:54 pm. On the last day of December, in London, sunrise is at 8:06 am and sunset at 4:01 pm GMT.
Sunshine
The average sunshine in December in London is 4.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What are the temperatures in London in December?
What is the most humid month in London?
What is the average humidity in December in London?
How much does it rain in London in December?
How much does it snow in London in December?
What is the month with the shortest days in London?
How many hours of daylight does London have in December?
When are sunrise and sunset in December in London?
How many hours of sunshine does London have in December?
What are the months with the lowest UV index in London?
How high is the UV index in December in London?
Average temperature in December
London, United Kingdom
- Average high temperature in December: 7.8°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in December
London, United Kingdom
- Average pressure in December: 1014.5mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in December
London, United Kingdom
- Average wind speed in December: 17km/h
The windiest month (with the highest average wind speed) is February (17.3km/h).
The calmest month (with the lowest average wind speed) is September (12.6km/h).
Average humidity in December
London, United Kingdom
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
London, United Kingdom
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is June (45mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in December
London, United Kingdom
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is September (9.8 days).
Average snowfall in December
London, United Kingdom
- Average snowfall in December: 9mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
London, United Kingdom
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
London, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
London, United Kingdom
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in December
London, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
London, United Kingdom
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 49).
Average visibility in December
London, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and December (9km).
The months with the lowest visibility are September and November (8km).
London, United Kingdom
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