December weather forecastStenness, United Kingdom
December
Weather in December
December, the first month of the winter in Stenness, is also a frosty month, with an average temperature ranging between max 8.5°C (47.3°F) and min 6.5°C (43.7°F).Temperature
Stenness experiences an average high-temperature of a still frosty 8.5°C (47.3°F) with the onset of December, subtly varied from November's 9.6°C (49.3°F). In December, Stenness experiences a marginal drop in temperature, with averages of 6.5°C (43.7°F) at night.Humidity
January and December, with an average relative humidity of 75%, are the least humid months.Rainfall
The wettest months are January and December, with an average 60mm (2.36") of rainfall.Snowfall
January through April, November and December are months with snowfall. In Stenness, United Kingdom, in December, snow falls for 0.8 days, with typically accumulated 4mm (0.16") of snow. Throughout the year, in Stenness, there are 4.8 snowfall days, and 23mm (0.91") of snow is accumulated.Daylight
With an average of 6h and 18min of daylight, December has the shortest days of the year in Stenness.On the first day of December in Stenness, sunrise is at 8:40 am and sunset at 3:23 pm. On the last day of the month, sunrise is at 9:06 am and sunset at 3:26 pm GMT.
Sunshine
The month with the least sunshine in Stenness, United Kingdom, is December, with an average of 3.1h of sunshine.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Stenness, United Kingdom. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Stenness, United Kingdom
- Average high temperature in December: 8.5°C
The warmest month (with the highest average high temperature) is August (14.2°C).
The month with the lowest average high temperature is February (7°C).
- Average low temperature in December: 6.5°C
The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is February (5.5°C).
Average pressure in December
Stenness, United Kingdom
- Average pressure in December: 1003.7mbar
The months with the highest atmospheric pressure are May and June (1014.4mbar).
The month with the lowest atmospheric pressure is December (1003.7mbar).
Average wind speed in December
Stenness, United Kingdom
- Average wind speed in December: 37.5km/h
The windiest month (with the highest average wind speed) is January (38.7km/h).
The calmest months (with the lowest average wind speed) are June and July (22.5km/h).
Average humidity in December
Stenness, United Kingdom
- Average humidity in December: 75%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and December (75%).
Average rainfall in December
Stenness, United Kingdom
- Average rainfall in December: 60mm
The wettest months (with the highest rainfall) are January and December (60mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in December
Stenness, United Kingdom
- Average rainfall days in December: 23.5 days
The month with the highest number of rainy days is December (23.5 days).
The month with the least rainy days is June (15.5 days).
Average snowfall in December
Stenness, United Kingdom
- Average snowfall in December: 4mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Stenness, United Kingdom
- Average snowfall days in December: 0.8 days
The months with the highest number of snowfall days are February and March (1.2 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
Stenness, United Kingdom
- Average daylight in December: 6h and 18min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 3h and 6min
The month with the most sunshine is June (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in December
Stenness, United Kingdom
- Average sunshine days in December: 4.8 days
The month with the most sunshine days is May (11.4 days).
The month with the least sunshine days is December (4.8 days).
Average UV index in December
Stenness, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June, July and September (UV index 4).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in December
Stenness, United Kingdom
- Average cloud cover in December: 65
The months with the most cloud cover are January and March (Cloud cover 67).
The months with the least cloud cover are April and May (Cloud cover 56).
Average visibility in December
Stenness, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and March (9km).
