December weather forecast
Sønderborg, Denmark

December

Weather in December

Completing the climatological calendar, December in Sønderborg, Denmark, represents typical winter conditions. Temperatures show a significant drop down to an average low of 2.9°C (37.2°F), with an expected occurrence of snowfall. The weather during this month impresses with the least amounts of daylight and sunshine hours. Growing cloud cover, strong winds, and a high relative humidity further emphasis on the chilling winter experience that December offers. As Sønderborg gets veiled under a blanket of snow, the city warmly embraces the holiday season, celebrating the final chapter of the year.

Temperature

December's average high-temperature is an icy 5.3°C (41.5°F), maintaining a close comparison with November's 8.2°C (46.8°F). A mean low-temperature of 2.9°C (37.2°F) is a distinguishing feature of December, indicating a slight dip from daytime highs.

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 87%.

Rainfall

In December, the rain falls for 12.9 days. Throughout December, 22mm (0.87") of precipitation is accumulated. Throughout the year, there are 153.2 rainfall days, and 268mm (10.55") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Sønderborg, in December, snow falls for 4.3 days, with typically accumulated 12mm (0.47") of snow. In Sønderborg, during the entire year, snow falls for 19.3 days and aggregates up to 54mm (2.13") of snow.

Sea temperature

In Sønderborg, in December, the average water temperature is 3°C (37.4°F).
Note: In the scenario of swimming, this is assessed as life-threatening and highly risky. The chilling water causes severe discomfort and induces instant hyperventilation. A specialized swimsuit is necessary to counter thermal damage.

Daylight

December has the shortest days of the year, with an average of 7h and 18min of daylight.
On the first day of the month, sunrise is at 08:22 and sunset at 15:58. On the last day of December, sunrise is at 08:45 and sunset at 16:03 CET.

Sunshine

The average sunshine in December is 3.3h.

UV index

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

How cold does it get in December?
Sønderborg in December has an average high-temperature of 5.3°C (41.5°F) and an average low-temperature of 2.9°C (37.2°F).
What is the most humid month?
January and December, with an average relative humidity of 87%, are most humid months.
What is the average humidity in December?
In December, the average relative humidity is 87%.
How many days does it rain in December?
In December, the rain falls for 12.9 days. Throughout December, 22mm (0.87") of precipitation is accumulated.
How much does it snow in December?
In Sønderborg, during December, snow falls for 4.3 days and regularly aggregates up to 12mm (0.47") of snow.
How cold is the water in December?
In Sønderborg, the average seawater temperature in December is 3°C (37.4°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.
What is the month with the shortest days in Sønderborg?
December has the shortest days of the year, with an average of 7h and 18min of daylight.
What is the average length of the day in December?
In December, the average day length is 7h and 19min.
When are sunrise and sunset in December?
On the first day of December in Sønderborg, sunrise is at 08:22 and sunset at 15:58. On the last day of the month, sunrise is at 08:45 and sunset at 16:03 CET.
How many hours of sunshine does Sønderborg have in December?
In Sønderborg, Denmark, the average sunshine duration in December is 3.3h.
What is the UV index intensity in December?
The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Sønderborg, Denmark
Average temperature in December
Sønderborg, Denmark
  • Average high temperature in December: 5.3°C

The warmest month (with the highest average high temperature) is August (20.3°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in December: 2.9°C

The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is February (0.5°C).

Average pressure in December - Sønderborg, Denmark
Average pressure in December
Sønderborg, Denmark
  • Average pressure in December: 1011.6mbar

The months with the highest atmospheric pressure are April and May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).

Average wind speed in December - Sønderborg, Denmark
Average wind speed in December
Sønderborg, Denmark
  • Average wind speed in December: 22.5km/h

The windiest month (with the highest average wind speed) is December (22.5km/h).
The calmest month (with the lowest average wind speed) is July (16.2km/h).

Average humidity in December - Sønderborg, Denmark
Average humidity in December
Sønderborg, Denmark
  • Average humidity in December: 87%

The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are April, May and August (77%).

Average rainfall in December - Sønderborg, Denmark
Average rainfall in December
Sønderborg, Denmark
  • Average rainfall in December: 22mm

The wettest month (with the highest rainfall) is July (32mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in December - Sønderborg, Denmark
Average rainfall days in December
Sønderborg, Denmark
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (9.4 days).

Average snowfall in December - Sønderborg, Denmark
Average snowfall in December
Sønderborg, Denmark
  • Average snowfall in December: 12mm

The month with the highest snowfall is February (18mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Sønderborg, Denmark
Average snowfall days in December
Sønderborg, Denmark
  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is February (6.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in December - Sønderborg, Denmark
Average sea temperature in December
Sønderborg, Denmark
  • Average sea temperature in December: 3°C

The best month for swimming (with the highest average sea temperature) is August (18°C).
The coldest month (with the lowest average sea temperature) is February (1°C).

Average daylight in December / Average sunshine in December - Sønderborg, Denmark
Average daylight in December /
Average sunshine in December
Sønderborg, Denmark
  • Average daylight in December: 7h and 2min

The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

Average sunshine days in December - Sønderborg, Denmark
Average sunshine days in December
Sønderborg, Denmark
  • Average sunshine days in December: 9.9 days

The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is December (9.9 days).

Average UV index in December - Sønderborg, Denmark
Average UV index in December
Sønderborg, Denmark
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December - Sønderborg, Denmark
Average cloud cover in December
Sønderborg, Denmark
  • Average cloud cover in December: 69

The months with the most cloud cover are February and December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 41).

Average visibility in December - Sønderborg, Denmark
Average visibility in December
Sønderborg, Denmark
  • Average visibility in December: 9km

The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).

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