December weather forecastRoskilde, Denmark
December
Weather in December
December ushers in the chilly grasp of winter in Roskilde. The plummeting temperature value, reaching as low as 1.8°C (35.2°F) echo the mood of deep winter. Snowfall makes a return, transforming the city into a picturesque winter wonderland. Though daylight is drastically reduced, the city illuminates itself with Christmas decorations, spreading cheerful warmth against the backdrop of the frosty climate. It's the perfect month to appreciate Roskilde’s winter aesthetics amidst the festivities.Temperature
A minor decrease in the average high-temperature is observed during December, shifting from a chilly 7.6°C (45.7°F) in November to an icy 4.5°C (40.1°F). Roskilde encounters a negligible difference from daytime peaks throughout the December nights, with a low-temperature average of 1.8°C (35.2°F).Humidity
January, November and December, with an average relative humidity of 88%, are the most humid months in Roskilde.Rainfall
In December, in Roskilde, the rain falls for 13.4 days. Throughout December, 26mm (1.02") of precipitation is accumulated. In Roskilde, Denmark, during the entire year, the rain falls for 166.6 days and collects up to 341mm (13.43") of precipitation.Snowfall
January through April, November and December are months with snowfall in Roskilde. In December, in Roskilde, it is snowing for 5.5 days. Throughout December, 25mm (0.98") of snow is accumulated. In Roskilde, during the entire year, snow falls for 26.6 days and aggregates up to 122mm (4.8") of snow.Sea temperature
In Roskilde, the average seawater temperature in December is 5.1°C (41.2°F).Note: Unprotected swimming in 5.1°C (41.2°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.
Daylight
The month with the shortest days in Roskilde is December, with an average of 7h and 12min of daylight.On the first day of December, sunrise is at 08:17 and sunset at 15:44. On the last day of the month, sunrise is at 08:40 and sunset at 15:49 CET.
Sunshine
With an average of 3h of sunshine, December has the least sunshine of the year in Roskilde.UV index
The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roskilde, Denmark
- Average high temperature in December: 4.5°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The months with the lowest average high temperature are January and February (2.8°C).
- Average low temperature in December: 1.8°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (-0.6°C).
Average pressure in December
Roskilde, Denmark
- Average pressure in December: 1011.2mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).
Average wind speed in December
Roskilde, Denmark
- Average wind speed in December: 19.1km/h
The windiest month (with the highest average wind speed) is December (19.1km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in December
Roskilde, Denmark
- Average humidity in December: 88%
The months with the highest relative humidity are January, November and December (88%).
The months with the lowest relative humidity are April, May, June and July (77%).
Average rainfall in December
Roskilde, Denmark
- Average rainfall in December: 26mm
The wettest month (with the highest rainfall) is August (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Roskilde, Denmark
- Average rainfall days in December: 13.4 days
The months with the highest number of rainy days are July and August (16.9 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in December
Roskilde, Denmark
- Average snowfall in December: 25mm
The month with the highest snowfall is February (35mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Roskilde, Denmark
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Roskilde, Denmark
- Average sea temperature in December: 5.1°C
The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is February (2.1°C).
Average daylight in December /
Average sunshine in December
Roskilde, Denmark
- Average daylight in December: 7h and 12min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in December
Roskilde, Denmark
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is April (14.6 days).
The month with the least sunshine days is August (9.8 days).
Average UV index in December
Roskilde, Denmark
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Roskilde, Denmark
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Roskilde, Denmark
- Average visibility in December: 9km
The months with the highest visibility are April, June, August and September (10km).
The months with the lowest visibility are January, February, March, May, July, October, November and December (9km).
