December weather forecastSemley, United Kingdom
December
Weather in December
The first month of the winter, December, is still a chilly month in Semley, United Kingdom, with an average temperature fluctuating between 8°C (46.4°F) and 3.5°C (38.3°F).Temperature
The arrival of December brings an average high-temperature of a chilly 8°C (46.4°F), subtly diverging from November's 10.2°C (50.4°F). Semley's December nights witness minimal differential from the daytime temperatures, with averages of 3.5°C (38.3°F).Humidity
The most humid month is December, with an average relative humidity of 91%.Rainfall
The month with the most rainfall is December, when the rain falls for 13 days and typically aggregates up to 56mm (2.2") of precipitation.Snowfall
January through March, November and December are months with snowfall in Semley. In Semley, during December, snow falls for 1.3 days and regularly aggregates up to 8mm (0.31") of snow. In Semley, during the entire year, snow falls for 7.3 days and aggregates up to 32mm (1.26") of snow.Daylight
December has the shortest days of the year in Semley, United Kingdom, with an average of 8h and 0min of daylight.On the first day of December, sunrise is at 7:50 am and sunset at 4:05 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:11 pm GMT.
Sunshine
In Semley, the average sunshine in December is 3.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Semley, United Kingdom. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Semley, United Kingdom
- Average high temperature in December: 8°C
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in December
Semley, 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 (1010.5mbar).
Average wind speed in December
Semley, United Kingdom
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is February (16.8km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).
Average humidity in December
Semley, United Kingdom
- Average humidity in December: 91%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (80%).
Average rainfall in December
Semley, United Kingdom
- Average rainfall in December: 56mm
The wettest month (with the highest rainfall) is December (56mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Semley, United Kingdom
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is September (11.4 days).
Average snowfall in December
Semley, United Kingdom
- Average snowfall in December: 8mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Semley, United Kingdom
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (2.4 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
Semley, 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: 3h and 48min
The month with the most sunshine is July (Average sunshine: 7h and 54min).
The months with the least sunshine are February and November (Average sunshine: 3h and 42min).
Average sunshine days in December
Semley, United Kingdom
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in December
Semley, United Kingdom
- Average UV index in December: 2
The month with the highest UV index is 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
Semley, United Kingdom
- Average cloud cover in December: 61
The month with the most cloud cover is November (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 50).
Average visibility in December
Semley, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are February and March (9km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (8km).
