December weather forecastWesterham, United Kingdom
December
Weather in December
The first month of the winter, December, is still a chilly month in Westerham, United Kingdom, with an average temperature ranging between max 7.9°C (46.2°F) and min 3.6°C (38.5°F).Temperature
With the onset of December, Westerham's average high-temperature clocks in at a chilly 7.9°C (46.2°F), showing a minor fluctuation from the previous month. During the nights of December, the average low-temperature in Westerham holds at an icy 3.6°C (38.5°F).Humidity
The most humid month is December, with an average relative humidity of 89%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.5 days and typically aggregates up to 38mm (1.5") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Westerham, in December, snow falls for 2.3 days, with typically accumulated 17mm (0.67") of snow. In Westerham, United Kingdom, during the entire year, snow falls for 11.9 days and aggregates up to 69mm (2.72") of snow.Daylight
With an average of 8h and 0min of daylight, December has the shortest days of the year.On the first day of December in Westerham, sunrise is at 7:42 am and sunset at 3:55 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 4:01 pm GMT.
Sunshine
In Westerham, United Kingdom, the average sunshine in December 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 low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Westerham, United Kingdom
- Average high temperature in December: 7.9°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in December: 3.6°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 (2.4°C).
Average pressure in December
Westerham, United Kingdom
- Average pressure in December: 1014.7mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in December
Westerham, United Kingdom
- Average wind speed in December: 17.3km/h
The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is September (12.9km/h).
Average humidity in December
Westerham, United Kingdom
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in December
Westerham, United Kingdom
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is December (38mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in December
Westerham, United Kingdom
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is September (9.7 days).
Average snowfall in December
Westerham, United Kingdom
- Average snowfall in December: 17mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Westerham, United Kingdom
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is February (4.2 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
Westerham, United Kingdom
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 4h and 12min
The months with the most sunshine are July and August (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Westerham, United Kingdom
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in December
Westerham, 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
Westerham, United Kingdom
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 47).
Average visibility in December
Westerham, 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).
