December weather forecastMarstal, Denmark

December

Weather in December

December, the first month of the winter in Marstal, is still a cold month, with temperature in the range of an average low of 3.4°C (38.1°F) and an average high of 5.3°C (41.5°F).

Temperature

December brings a slight decrease in the average high-temperature, shifting from a chilly 8.5°C (47.3°F) in November to an icy 5.3°C (41.5°F). During December's nights, Marstal notes a minor temperature decline, reaching an average of 3.4°C (38.1°F).

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 86%.

Rainfall

In Marstal, in December, it is raining for 15.3 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, there are 174.7 rainfall days, and 493mm (19.41") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Marstal. In December, in Marstal, it is snowing for 3.1 days. Throughout December, 15mm (0.59") of snow is accumulated. In Marstal, during the entire year, snow falls for 18.3 days and aggregates up to 74mm (2.91") of snow.

Sea temperature

In December, the average sea temperature is 4.8°C (40.6°F).
Note: During swimming events, this situation presents an imminent life risk. Instantaneous loss of breath control makes clear thinking a near impossibility. A specialized swimsuit is compulsory to limit thermal dissipation.

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 08:18 and sunset at 15:55. On the last day of December, sunrise is at 08:41 and sunset at 16:00 CET.

Sunshine

With an average of 3.2h of sunshine, December has the least sunshine of the year in Marstal.

UV index

The average daily maximum UV index in December in Marstal is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: In December, the UV index of 2 transforms into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. When the Sun is at its strongest around midday, find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Marstal, is 5.3°C (41.5°F), while the average low-temperature is 3.4°C (38.1°F).

January, February and December, with an average relative humidity of 86%, are most humid months in Marstal.

In December, the average relative humidity in Marstal is 86%.

In Marstal, during December, the rain falls for 15.3 days and regularly aggregates up to 34mm (1.34") of precipitation.

In Marstal, during December, snow falls for 3.1 days and regularly aggregates up to 15mm (0.59") of snow.

In Marstal, Denmark, the average seawater temperature in December is 4.8°C (40.6°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

With an average of 7h and 18min of daylight, December has the shortest days of the year in Marstal, Denmark.

In December, the average day length in Marstal is 7h and 19min.

In December, on the first day of the month, sunrise is at 08:18 and sunset at 15:55. On the last day of the month, in Marstal, Denmark, sunrise is at 08:41 and sunset at 16:00 CET.

With an average of 3.2h of sunshine, December has the least sunshine of the year.

The average sunshine duration in December in Marstal is 3.2h.

In Marstal, Denmark, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

8.5°C

5.3°C

3.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

25.1km/h

27.7km/h

26km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.8

3.1

4.9

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

10.5

12.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Marstal, Denmark

Average high temperature in December: 5.3°C

The warmest months (with the highest average high temperature) are July and August (19.8°C).
The month with the lowest average high temperature is February (2.9°C).

Average low temperature in December: 3.4°C

The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).

Average pressure in December
Marstal, Denmark

Average pressure in December: 1011.6mbar

The months with the highest atmospheric pressure are April and May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).

Average wind speed in December
Marstal, Denmark

Average wind speed in December: 26.4km/h

The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is July (18.4km/h).

Average humidity in December
Marstal, Denmark

Average humidity in December: 86%

The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (77%).

Average rainfall in December
Marstal, Denmark

Average rainfall in December: 34mm

The wettest month (with the highest rainfall) is July (64mm).
The driest month (with the least rainfall) is April (16mm).

Average rainfall days in December
Marstal, Denmark

Average rainfall days in December: 15.3 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (10 days).

Average snowfall in December
Marstal, Denmark

Average snowfall in December: 15mm

The month with the highest snowfall is February (22mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Marstal, Denmark

Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in December
Marstal, Denmark

Average sea temperature in December: 4.8°C

The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is January (2.3°C).

Average daylight in December /
Average sunshine in December
Marstal, Denmark

Average daylight in December: 7h and 18min

The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).

Average sunshine in December: 3h and 12min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).

Average sunshine days in December
Marstal, Denmark

Average sunshine days in December: 10 days

The month with the most sunshine days is April (17.2 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in December
Marstal, Denmark

Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Marstal, Denmark

Average cloud cover in December: 70

The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are June and August (Cloud cover 40).

Average visibility in December
Marstal, 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).