December weather forecastSønderborg, 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 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: 7h and 18min
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 18min
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: 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: 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: 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: 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).
