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 sea temperature 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
A minor adjustment in Lerwick's average high-temperature is noted with the start of December, touching a still chilly 46.2°F from November's 48.4°F. Lerwick notes a steady average temperature of 42.1°F during the nights of December.Humidity
December is the least humid month in Lerwick, with an average relative humidity of 75%.Rainfall
December is the month with the most rainfall. Rain falls for 25.8 days and accumulates 3.54" of precipitation.Snowfall
Months with snowfall are January through May, November and December. In December, in Lerwick, it is snowing for 1.7 days. Throughout December, 0.31" of snow is accumulated. Throughout the year, in Lerwick, there are 9.3 snowfall days, and 1.85" of snow is accumulated.Sea temperature
In Lerwick, in December, the average water temperature is 49.3°F.Note: Entering waters of 49.3°F is life-endangering. A mere moment in 55.4°F waters feels piercing cold, and below 50°F it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
Daylight
The month with the shortest days is December, with an average of 6h and 0min of daylight.On the first day of December in Lerwick, sunrise is at 8:41 am and sunset at 3:05 pm. On the last day of the month, sunrise is at 9:08 am and sunset at 3:07 pm GMT.
Sunshine
December has the least sunshine of the year, with an average of 2.1h of sunshine.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Lerwick?
What is the least humid month in Lerwick?
What is the average humidity in December in Lerwick?
What is the wettest month in Lerwick?
How many days does it rain in December in Lerwick?
How many days does it snow in December in Lerwick?
What is the water temperature in December in Lerwick?
What is the month with the shortest days in Lerwick?
How many hours of daylight does Lerwick have in December?
When are sunrise and sunset in December in Lerwick?
What is the month with the least sunshine in Lerwick?
How many hours of sunshine does Lerwick have in December?
What are the months with the lowest UV index in Lerwick?
How high is the UV index in December in Lerwick?
Average temperature in December
Lerwick, United Kingdom
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is August (57.2°F).
The month with the lowest average high temperature is February (44.2°F).
- Average low temperature in December: 42.1°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is February (40.8°F).
Average pressure in December
Lerwick, United Kingdom
- Average pressure in December: 29.6"Hg
The months with the highest atmospheric pressure are May and June (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.6"Hg).
Average wind speed in December
Lerwick, United Kingdom
- Average wind speed in December: 23.2mph
The windiest month (with the highest average wind speed) is January (24mph).
The calmest month (with the lowest average wind speed) is July (14mph).
Average humidity in December
Lerwick, United Kingdom
- Average humidity in December: 75%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is December (75%).
Average rainfall in December
Lerwick, United Kingdom
- Average rainfall in December: 3.54"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is June (1.26").
Average rainfall days in December
Lerwick, United Kingdom
- Average rainfall days in December: 25.8 days
The month with the highest number of rainy days is December (25.8 days).
The month with the least rainy days is June (14.8 days).
Average snowfall in December
Lerwick, United Kingdom
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Lerwick, United Kingdom
- Average snowfall days in December: 1.7 days
The months with the highest number of snowfall days are February and March (2.2 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average sea temperature in December
Lerwick, United Kingdom
- Average sea temperature in December: 49.2°F
The best month for swimming (with the highest average sea temperature) is August (55.9°F).
The coldest month (with the lowest average sea temperature) is March (46°F).
Average daylight in December /
Average sunshine in December
Lerwick, United Kingdom
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in December
Lerwick, United Kingdom
- Average sunshine days in December: 2.1 days
The month with the most sunshine days is June (12.1 days).
The month with the least sunshine days is December (2.1 days).
Average UV index in December
Lerwick, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and August (UV index 4).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in December
Lerwick, United Kingdom
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).
Average visibility in December
Lerwick, United Kingdom
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
