December weather forecastMillwall, United Kingdom
December
Weather in December
December, the first month of the winter in Millwall, is also a frosty month, with an average temperature ranging between max 7.7°C (45.9°F) and min 3.5°C (38.3°F).Temperature
On the advent of December, Millwall's average high-temperature exhibits a minor adjustment to a chilly 7.7°C (45.9°F) from November's 10.3°C (50.5°F). Millwall encounters a negligible difference from daytime peaks throughout the December nights, with a low-temperature average of 3.5°C (38.3°F).Humidity
December is the most humid month, with an average relative humidity of 88%.Rainfall
In Millwall, in December, it is raining for 12.1 days, with typically 32mm (1.26") of accumulated precipitation. In Millwall, during the entire year, the rain falls for 148.8 days and collects up to 306mm (12.05") of precipitation.Snowfall
Months with snowfall in Millwall are January through April, November and December. In Millwall, in December, during 1.8 snowfall days, 11mm (0.43") of snow is typically accumulated. In Millwall, during the entire year, snow falls for 9.1 days and aggregates up to 48mm (1.89") of snow.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of December, sunrise is at 7:44 am and sunset at 3:54 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:01 pm GMT.
Sunshine
In December, the average sunshine is 4.2h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Millwall, United Kingdom
- Average high temperature in December: 7.7°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 (14.3°C).
The coldest month (with the lowest average low temperature) is January (2.1°C).
Average pressure in December
Millwall, 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
Millwall, United Kingdom
- Average wind speed in December: 17.1km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is September (12.7km/h).
Average humidity in December
Millwall, 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
Millwall, United Kingdom
- Average rainfall in December: 32mm
The wettest month (with the highest rainfall) is June (33mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Millwall, United Kingdom
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is September (9.6 days).
Average snowfall in December
Millwall, United Kingdom
- Average snowfall in December: 11mm
The month with the highest snowfall is February (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Millwall, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.5 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
Millwall, United Kingdom
- Average daylight in December: 7h and 54min
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 12min
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 30min).
Average sunshine days in December
Millwall, United Kingdom
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in December
Millwall, 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, March, November and December (UV index 2).
Average cloud cover in December
Millwall, United Kingdom
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 49).
Average visibility in December
Millwall, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
