December weather forecastNiederkassel, Germany

December

Weather in December

The first month of the winter, December, is also a wintry month in Niederkassel, Germany, with an average temperature fluctuating between 1.5°C (34.7°F) and 5.6°C (42.1°F).

Temperature

As November makes way for December, Niederkassel's average high-temperature eases from a chilly 9.1°C (48.4°F) to a cold 5.6°C (42.1°F). During the month of December, Niederkassel's average nighttime temperature closely mirrors its daytime counterpart, at a still icy 1.5°C (34.7°F).

Humidity

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

Rainfall

In Niederkassel, during December, the rain falls for 14.3 days and regularly aggregates up to 34mm (1.34") of precipitation. In Niederkassel, Germany, during the entire year, the rain falls for 166.3 days and collects up to 358mm (14.09") of precipitation.

Snowfall

January through March, November and December are months with snowfall in Niederkassel. In December, it is snowing for 3.7 days. Throughout December, 21mm (0.83") of snow is accumulated. Throughout the year, in Niederkassel, there are 16.2 snowfall days, and 99mm (3.9") of snow is accumulated.

Daylight

With an average of 8h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:12 and sunset at 16:29. On the last day of December, sunrise is at 08:34 and sunset at 16:36 CET.

Sunshine

With an average of 4h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

The high-temperature during December is 5.6°C (42.1°F) and the low-temperature is 1.5°C (34.7°F).

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

In December, the average relative humidity in Niederkassel is 87%.

In Niederkassel, in December, it is raining for 14.3 days, with typically 34mm (1.34") of accumulated precipitation.

In Niederkassel, during December, snow falls for 3.7 days and regularly aggregates up to 21mm (0.83") of snow.

December has the shortest days of the year in Niederkassel, with an average of 8h and 0min of daylight.

The average day length in December is 8h and 2min.

In December, on the first day of the month, sunrise is at 08:12 and sunset at 16:29. On the last day of the month, sunrise is at 08:34 and sunset at 16:36 CET.

With an average of 4h of sunshine, December has the least sunshine of the year.

The average sunshine duration in December is 4h.

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

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Niederkassel, Germany

  • Average high temperature in December: 5.6°C

The warmest month (with the highest average high temperature) is July (23.7°C).
The month with the lowest average high temperature is January (4.3°C).

  • Average low temperature in December: 1.5°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (0.1°C).

Average pressure in December
Niederkassel, Germany

  • Average pressure in December: 1017mbar

The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).

Average wind speed in December
Niederkassel, Germany

  • Average wind speed in December: 13.9km/h

The windiest month (with the highest average wind speed) is February (14.1km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).

Average humidity in December
Niederkassel, Germany

  • Average humidity in December: 87%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (72%).

Average rainfall in December
Niederkassel, Germany

  • Average rainfall in December: 34mm

The wettest months (with the highest rainfall) are June and August (38mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in December
Niederkassel, Germany

  • Average rainfall days in December: 14.3 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is September (10.9 days).

Average snowfall in December
Niederkassel, Germany

  • Average snowfall in December: 21mm

The month with the highest snowfall is February (34mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Niederkassel, Germany

  • Average snowfall days in December: 3.7 days

The months with the highest number of snowfall days are January and February (4.8 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
Niederkassel, Germany

  • Average daylight in December: 8h and 0min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

Average sunshine days in December
Niederkassel, Germany

  • Average sunshine days in December: 12.1 days

The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in December
Niederkassel, Germany

  • Average UV index in December: 2

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

Average cloud cover in December
Niederkassel, Germany

  • Average cloud cover in December: 60

The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Niederkassel, Germany

  • Average visibility in December: 8km

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