December weather forecastBilldal, Sweden
December
Weather in December
The first month of the winter, December, is also a wintry month in Billdal, Sweden, with temperature in the range of an average low of 0.5°C (32.9°F) and an average high of 3.5°C (38.3°F).Temperature
A mild shift in the average high-temperature occurs in December, reducing from a chilly 6.6°C (43.9°F) in November to an icy 3.5°C (38.3°F). Throughout December, Billdal records a steady low-temperature average of 0.5°C (32.9°F), a minor decrease from its daytime counterpart.Humidity
The average relative humidity in December in Billdal is 86%.Rainfall
In Billdal, during December, the rain falls for 15.5 days and regularly aggregates up to 54mm (2.13") of precipitation. Throughout the year, in Billdal, there are 179.3 rainfall days, and 570mm (22.44") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Billdal, Sweden. In December, it is snowing for 4.4 days. Throughout December, 38mm (1.5") of snow is accumulated. Throughout the year, in Billdal, there are 25.6 snowfall days, and 183mm (7.2") of snow is accumulated.Sea temperature
In Billdal, in December, the average water temperature is 5.8°C (42.4°F).Note: Navigating the 5.8°C (42.4°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 6h and 42min of daylight, December has the shortest days of the year in Billdal.On the first day of December, sunrise is at 08:29 and sunset at 15:33. On the last day of the month, sunrise is at 08:54 and sunset at 15:36 CET.
Sunshine
In Billdal, the average sunshine in December is 3.6h.UV index
The months with the lowest UV index are January through March, October through 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 rays for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Billdal, Sweden
- Average high temperature in December: 3.5°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is February (1.6°C).
- Average low temperature in December: 0.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-1.6°C).
Average pressure in December
Billdal, Sweden
- Average pressure in December: 1008.9mbar
The month with the highest atmospheric pressure is April (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in December
Billdal, Sweden
- Average wind speed in December: 20.3km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is June (14.8km/h).
Average humidity in December
Billdal, Sweden
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (73%).
Average rainfall in December
Billdal, Sweden
- Average rainfall in December: 54mm
The wettest month (with the highest rainfall) is August (68mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in December
Billdal, Sweden
- Average rainfall days in December: 15.5 days
The month with the highest number of rainy days is August (19 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in December
Billdal, Sweden
- Average snowfall in December: 38mm
The month with the highest snowfall is January (58mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Billdal, Sweden
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Billdal, Sweden
- Average sea temperature in December: 5.8°C
The best month for swimming (with the highest average sea temperature) is August (18.5°C).
The coldest month (with the lowest average sea temperature) is March (2.6°C).
Average daylight in December /
Average sunshine in December
Billdal, Sweden
- Average daylight in December: 6h and 42min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in December
Billdal, Sweden
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is April (15.3 days).
The month with the least sunshine days is August (9.5 days).
Average UV index in December
Billdal, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Billdal, Sweden
- Average cloud cover in December: 64
The months with the most cloud cover are January, February, November and December (Cloud cover 64).
The month with the least cloud cover is June (Cloud cover 39).
Average visibility in December
Billdal, Sweden
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
