December weather forecastSilloth, United Kingdom
December
Weather in December
The first month of the winter, December, is still a chilly month in Silloth, United Kingdom, with an average temperature fluctuating between 3°C (37.4°F) and 6.4°C (43.5°F).Temperature
The onset of December brings an average high-temperature of a still frosty 6.4°C (43.5°F), nearly matching the November temperature. December nights in Silloth witness a slight temperature decrease, averaging at a cold 3°C (37.4°F).Humidity
The months with the highest humidity in Silloth are January, November and December, with an average relative humidity of 88%.Rainfall
In Silloth, United Kingdom, in December, during 20.6 rainfall days, 69mm (2.72") of precipitation is typically accumulated. In Silloth, during the entire year, the rain falls for 218.8 days and collects up to 652mm (25.67") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, in Silloth, United Kingdom, it is snowing for 2.1 days. Throughout December, 16mm (0.63") of snow is accumulated. In Silloth, during the entire year, snow falls for 10.9 days and aggregates up to 93mm (3.66") of snow.Sea temperature
In Silloth, the average seawater temperature in December is 9.8°C (49.6°F).Note: Navigating the 9.8°C (49.6°F) at 13°C (55.4°F) is no joy, and temperatures less than 10°C (50°F) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
With an average of 7h and 18min of daylight, December has the shortest days of the year in Silloth.On the first day of December in Silloth, sunrise is at 8:14 am and sunset at 3:50 pm. On the last day of the month, sunrise is at 8:37 am and sunset at 3:56 pm GMT.
Sunshine
In Silloth, the average sunshine in December is 3.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Silloth. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Silloth, United Kingdom
- Average high temperature in December: 6.4°C
The warmest month (with the highest average high temperature) is July (16.8°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (11°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in December
Silloth, United Kingdom
- Average pressure in December: 1009.8mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1007.8mbar).
Average wind speed in December
Silloth, United Kingdom
- Average wind speed in December: 20.7km/h
The windiest month (with the highest average wind speed) is December (20.7km/h).
The calmest month (with the lowest average wind speed) is June (13.1km/h).
Average humidity in December
Silloth, United Kingdom
- Average humidity in December: 88%
The months with the highest relative humidity are January, November and December (88%).
The month with the lowest relative humidity is April (82%).
Average rainfall in December
Silloth, United Kingdom
- Average rainfall in December: 69mm
The wettest month (with the highest rainfall) is August (70mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in December
Silloth, United Kingdom
- Average rainfall days in December: 20.6 days
The month with the highest number of rainy days is August (22.2 days).
The month with the least rainy days is April (14.5 days).
Average snowfall in December
Silloth, United Kingdom
- Average snowfall in December: 16mm
The month with the highest snowfall is January (42mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Silloth, United Kingdom
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Silloth, United Kingdom
- Average sea temperature in December: 9.8°C
The best month for swimming (with the highest average sea temperature) is August (15.8°C).
The coldest month (with the lowest average sea temperature) is February (7.1°C).
Average daylight in December /
Average sunshine in December
Silloth, United Kingdom
- Average daylight in December: 7h and 18min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is May (Average sunshine: 7h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Silloth, United Kingdom
- Average sunshine days in December: 6.7 days
The month with the most sunshine days is April (12.1 days).
The month with the least sunshine days is August (6 days).
Average UV index in December
Silloth, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Silloth, United Kingdom
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 50).
Average visibility in December
Silloth, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
