December weather forecastSustrum, Germany

December

Weather in December

December, the first month of the winter in Sustrum, is also an icy month, with an average temperature fluctuating between 5.5°C (41.9°F) and 1.8°C (35.2°F).

Temperature

As December arrives, Sustrum's weather displays a minor decrease in high-temperatures, transitioning from November's chilly 8.6°C (47.5°F) to a wintry 5.5°C (41.9°F). The temperature during December experiences a small drop from daytime peaks, recording an average of 1.8°C (35.2°F) at night.

Humidity

December is the most humid month in Sustrum, Germany, with an average relative humidity of 89%.

Rainfall

In Sustrum, in December, it is raining for 16.1 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, in Sustrum, there are 175.1 rainfall days, and 369mm (14.53") of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Sustrum. In Sustrum, Germany, in December, during 2.6 snowfall days, 23mm (0.91") of snow is typically accumulated. Throughout the year, in Sustrum, Germany, there are 13.1 snowfall days, and 80mm (3.15") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 7h and 42min of daylight.
On the first day of December in Sustrum, sunrise is at 08:21 and sunset at 16:18. On the last day of the month, sunrise is at 08:43 and sunset at 16:24 CET.

Sunshine

The month with the least sunshine is December, with an average of 3.1h of sunshine.

UV index

The months with the lowest UV index in Sustrum are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

Sustrum in December has an average high-temperature of 5.5°C (41.9°F) and an average low-temperature of 1.8°C (35.2°F).

The most humid month in Sustrum is December, with an average relative humidity of 89%.

In Sustrum, the average relative humidity in December is 89%.

In Sustrum, during December, the rain falls for 16.1 days and regularly aggregates up to 27mm (1.06") of precipitation.

In Sustrum, in December, during 2.6 snowfall days, 23mm (0.91") of snow is typically accumulated.

With an average of 7h and 42min of daylight, December has the shortest days of the year in Sustrum, Germany.

In December, the average day length in Sustrum is 7h and 41min.

In December, on the first day of the month, sunrise is at 08:21 and sunset at 16:18. On the last day of the month, in Sustrum, Germany, sunrise is at 08:43 and sunset at 16:24 CET.

December has the least sunshine of the year in Sustrum, with an average of 3.1h of sunshine.

The average sunshine duration in December is 3.1h.

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December in Sustrum, Germany, is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sustrum, Germany

  • Average high temperature in December: 5.5°C

The warmest month (with the highest average high temperature) is August (22.1°C).
The month with the lowest average high temperature is January (4.1°C).

  • Average low temperature in December: 1.8°C

The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (0.2°C).

Average pressure in December
Sustrum, Germany

  • Average pressure in December: 1013.7mbar

The month with the highest atmospheric pressure is September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).

Average wind speed in December
Sustrum, Germany

  • Average wind speed in December: 19km/h

The windiest month (with the highest average wind speed) is December (19km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).

Average humidity in December
Sustrum, Germany

  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Sustrum, Germany

  • Average rainfall in December: 27mm

The wettest month (with the highest rainfall) is June (43mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days in December
Sustrum, Germany

  • Average rainfall days in December: 16.1 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (10.4 days).

Average snowfall in December
Sustrum, Germany

  • Average snowfall in December: 23mm

The months with the highest snowfall are January and February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Sustrum, Germany

  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Sustrum, Germany

  • Average daylight in December: 7h and 42min

The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).

  • Average sunshine in December: 3h and 6min

The month with the most sunshine is August (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).

Average sunshine days in December
Sustrum, Germany

  • Average sunshine days in December: 10.1 days

The month with the most sunshine days is March (15.8 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in December
Sustrum, Germany

  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Sustrum, Germany

  • 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 April and August (Cloud cover 45).

Average visibility in December
Sustrum, Germany

  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, October and December (9km).
The months with the lowest visibility are September and November (8km).