Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December observes an average high-temperature of a still frosty 8.5°C (47.3°F), marking an insignificant difference from November's 9.6°C (49.3°F). Nighttime readings in Lyness during December register a minimal drop from daytime highs, averaging at a still chilly 6.5°C (43.7°F).Humidity
The months with the lowest humidity are January and December, with an average relative humidity of 75%.Rainfall
The months with the most rainfall are January and December, with an average 60mm (2.36") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 0.8 days. Throughout December, 4mm (0.16") of snow is accumulated. Throughout the year, in Lyness, there are 4.8 snowfall days, and 23mm (0.91") of snow is accumulated.Daylight
With an average of 6h and 24min of daylight, December has the shortest days of the year.On the first day of December in Lyness, sunrise is at 8:39 am and sunset at 3:24 pm. On the last day of the month, sunrise is at 9:04 am and sunset at 3:27 pm GMT.
Sunshine
With an average of 3.1h of sunshine, December has the least sunshine of the year in Lyness, United Kingdom.UV index
The months with the lowest UV index in Lyness, United Kingdom, are January through March and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes 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 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Lyness?
What are the least humid months in Lyness?
What is the average humidity in December in Lyness?
What is the rainiest month in Lyness?
How many days does it rain in December in Lyness?
How much does it snow in Lyness in December?
What is the month with the shortest days in Lyness?
How many hours of daylight does Lyness have in December?
What time are sunrise and sunset in December in Lyness?
What is the month with the least sunshine in Lyness?
How many hours of sunshine does Lyness have in December?
What are the months with the lowest UV index in Lyness?
What is the UV index reading in December in Lyness?
Average temperature in December
Lyness, 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
Lyness, 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
Lyness, 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
Lyness, 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
Lyness, 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
Lyness, 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
Lyness, 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
Lyness, 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
Lyness, United Kingdom
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in December: 3h and 1min
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
Lyness, 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
Lyness, 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
Lyness, 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
Lyness, 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).
