December weather forecastGuernsey, Guernsey
December weather for Guernsey, Guernsey: In Guernsey, Guernsey, during December, the rain falls for 21.4 days and regularly aggregates up to 70mm (2.76") of precipitation. December has the shortest days of the year in Guernsey, with an average of 8h and 12min of daylight.
December
Weather in December
December ushers in the winter season in Guernsey with temperatures falling to an average low of 9.2°C (48.6°F). Despite the cold, the month rarely sees any snowfall, adding to its uniqueness. As the days grow shorter and darker, preparations for holiday festivities glow brighter. While the winter solstice marks the shortest day of the year, the promise of longer days ahead never fails to spark hope. The year concludes on a quieter note, preparing the island for a weather cycle renewal with the upcoming new year.Temperature
Guernsey's average high-temperature in December sits at a fresh 11.1°C (52°F), showing little difference from the previous month. During December, Guernsey perceives a slight decrease in temperature from daytime highs, settling at an average low of 9.2°C (48.6°F).Humidity
The months with the lowest humidity in Guernsey are November and December, with an average relative humidity of 77%.Rainfall
In Guernsey, Guernsey, during December, the rain falls for 21.4 days and regularly aggregates up to 70mm (2.76") of precipitation. In Guernsey, during the entire year, the rain falls for 196.3 days and collects up to 557mm (21.93") of precipitation.Snowfall
February through December are months without snowfall in Guernsey.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Guernsey, Guernsey.On the first day of the month, sunrise is at 07:45 and sunset at 16:13. On the last day of December, in Guernsey, sunrise is at 08:06 and sunset at 16:20 GMT.
Sunshine
January, November and December, with an average of 3.9h of sunshine, are months with the least sunshine in Guernsey.UV index
The average daily maximum UV index in December in Guernsey is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Exercise prevention - Warding off sunburn is urged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guernsey, Guernsey
- Average high temperature in December: 11.1°C
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).
- Average low temperature in December: 9.2°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).
Average pressure in December
Guernsey, Guernsey
- Average pressure in December: 1016.5mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in December
Guernsey, Guernsey
- Average wind speed in December: 36km/h
The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity in December
Guernsey, Guernsey
- Average humidity in December: 77%
The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).
Average rainfall in December
Guernsey, Guernsey
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).
Average rainfall days in December
Guernsey, Guernsey
- Average rainfall days in December: 21.4 days
The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).
Average snowfall in December
Guernsey, Guernsey
- Average snowfall in December: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Guernsey, Guernsey
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Guernsey, Guernsey
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).
Average sunshine days in December
Guernsey, Guernsey
- Average sunshine days in December: 5.3 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).
Average UV index in December
Guernsey, Guernsey
- Average UV index in December: 3
The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in December
Guernsey, Guernsey
- Average cloud cover in December: 63
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Guernsey, Guernsey
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
