December weather forecast
Unbyn, Sweden

December

Weather in December

December, the first month of the winter in Unbyn, is also a subzero cold month, with temperature in the range of an average high of -4.2°C (24.4°F) and an average low of -8.6°C (16.5°F).

Temperature

In Unbyn, the average high-temperature in December gently drops from -0.9°C (30.4°F) in November to a still freezing cold -4.2°C (24.4°F). December nights in Unbyn anticipate an average temperature of -8.6°C (16.5°F), a modest decline from the daytime.

Humidity

In December, the average relative humidity in Unbyn is 92%.

Rainfall

In Unbyn, in December, during 6.5 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, in Unbyn, Sweden, there are 122.6 rainfall days, and 434mm (17.09") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Unbyn is December, when snow falls for 18.8 days and typically aggregates up to 289mm (11.38") of snow.

Daylight

The month with the shortest days in Unbyn is December, with an average of 3h and 24min of daylight.
On the first day of the month, sunrise is at 09:15 and sunset at 13:28. On the last day of December, sunrise is at 09:54 and sunset at 13:17 CET.

Sunshine

With an average of 1.4h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

How cold is December in Unbyn?
The high-temperature in Unbyn during December is -4.2°C (24.4°F) and the low-temperature is -8.6°C (16.5°F).
What is the average humidity in December in Unbyn?
In December, the average relative humidity in Unbyn is 92%.
How many days does it rain in December in Unbyn?
In December, in Unbyn, the rain falls for 6.5 days. Throughout December, 44mm (1.73") of precipitation is accumulated.
When does it snow the most in Unbyn?
The month with the most snowfall is December, when snow falls for 18.8 days and typically aggregates up to 289mm (11.38") of snow.
How many days does it snow in December in Unbyn?
In Unbyn, Sweden, in December, during 18.8 snowfall days, 289mm (11.38") of snow is typically accumulated.
What is the month with the shortest days in Unbyn?
December has the shortest days of the year, with an average of 3h and 24min of daylight.
What is the average length of the day in December in Unbyn?
The average day length in December is 3h and 23min.
What time are sunrise and sunset in December in Unbyn?
In December, on the first day of the month, sunrise is at 09:15 and sunset at 13:28. On the last day of the month, in Unbyn, Sweden, sunrise is at 09:54 and sunset at 13:17 CET.
What is the month with the least sunshine in Unbyn?
With an average of 1.4h of sunshine, December has the least sunshine of the year.
How many hours of sunshine does Unbyn have in December?
The average sunshine duration in December is 1.4h.
When is the lowest UV index in Unbyn?
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the UV index reading in December in Unbyn?
The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Unbyn, Sweden
  • Average high temperature in December: -4.2°C

The warmest month (with the highest average high temperature) is July (19.9°C).
The month with the lowest average high temperature is January (-7.1°C).

  • Average low temperature in December: -8.6°C

The month with the highest average low temperature is July (11.5°C).
The coldest month (with the lowest average low temperature) is February (-12.7°C).

Average pressure in December
Unbyn, Sweden
  • Average pressure in December: 1004.8mbar

The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).

Average wind speed in December
Unbyn, Sweden
  • Average wind speed in December: 10.5km/h

The windiest month (with the highest average wind speed) is March (10.9km/h).
The calmest month (with the lowest average wind speed) is April (9.5km/h).

Average humidity in December
Unbyn, Sweden
  • Average humidity in December: 92%

The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is June (63%).

Average rainfall in December
Unbyn, Sweden
  • Average rainfall in December: 44mm

The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is April (25mm).

Average rainfall days in December
Unbyn, Sweden
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (3.5 days).

Average snowfall in December
Unbyn, Sweden
  • Average snowfall in December: 289mm

The month with the highest snowfall is December (289mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Unbyn, Sweden
  • Average snowfall days in December: 18.8 days

The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Unbyn, Sweden
  • Average daylight in December: 3h and 2min

The month with the longest days is June (Average daylight: 22h and 48min).
The month with the shortest days is December (Average daylight: 3h and 24min).

  • Average sunshine in December: 1h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).

Average sunshine days in December
Unbyn, Sweden
  • Average sunshine days in December: 10.9 days

The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is April (8.6 days).

Average UV index in December
Unbyn, Sweden
  • Average UV index in December: 1

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 1).

Average cloud cover in December
Unbyn, Sweden
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 42).

Average visibility in December
Unbyn, Sweden
  • Average visibility in December: 7km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (5km).

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