December weather forecast
Rumelange, Luxembourg

December

Weather in December

December sees Rumelange under a thick blanket of snow, re-announcing winter's dominance. It records maximum precipitation of the year at 75mm (2.95"), mostly in the form of snow, and the relative humidity tops the chart with about 91%. Yet, the city emanates a charm peculiar to winter with its snow-covered landscapes and frosty atmosphere. With the countdown to the New Year, the city gets wrapped up in festive decorations and joyous celebrations. Amidst freezing temperatures and short daylight hours, December in Rumelange unfolds a beautiful wintry panorama.

Temperature

As November transitions into December, Rumelange sees a gentle drop in the average high-temperature, transitioning from a frosty 8°C (46.4°F) to a wintry 4.5°C (40.1°F). Rumelange, during the December nights, maintains an average temperature of 0.5°C (32.9°F), closely aligned with its daytime readings.

Humidity

December is the most humid month in Rumelange, with an average relative humidity of 91%.

Rainfall

December is the month with the most rainfall. Rain falls for 17 days and accumulates 75mm (2.95") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Rumelange, Luxembourg. In December, it is snowing for 7.7 days. Throughout December, 84mm (3.31") of snow is accumulated. Throughout the year, there are 32.5 snowfall days, and 279mm (10.98") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 12min of daylight.
On the first day of December in Rumelange, sunrise is at 08:10 and sunset at 16:39. On the last day of the month, sunrise is at 08:31 and sunset at 16:46 CET.

Sunshine

December has the least sunshine of the year, with an average of 2.9h of sunshine.

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 estimate 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:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

How cold is December in Rumelange?
The high-temperature, in December, in Rumelange, records 4.5°C (40.1°F), while the low-temperature is 0.5°C (32.9°F).
What is the most humid month in Rumelange?
December is the most humid month in Rumelange, Luxembourg, with an average relative humidity of 91%.
What is the average humidity in December in Rumelange?
In Rumelange, the average relative humidity in December is 91%.
What is the wettest month in Rumelange?
The month with the most rainfall in Rumelange, Luxembourg, is December, when the rain falls for 17 days and typically aggregates up to 75mm (2.95") of precipitation.
How much does it rain in Rumelange in December?
In Rumelange, Luxembourg, in December, during 17 rainfall days, 75mm (2.95") of precipitation is typically accumulated.
How many days does it snow in December in Rumelange?
In December, in Rumelange, it is snowing for 7.7 days. Throughout December, 84mm (3.31") of snow is accumulated.
What is the month with the shortest days in Rumelange?
With an average of 8h and 12min of daylight, December has the shortest days of the year.
How many hours of daylight does Rumelange have in December?
In December, the average day length is 8h and 15min.
When is the sunrise / sunset in December in Rumelange?
On the first day of December in Rumelange, Luxembourg, sunrise is at 08:10 and sunset at 16:39. On the last day of the month, sunrise is at 08:31 and sunset at 16:46 CET.
What is the month with the least sunshine in Rumelange?
December has the least sunshine of the year in Rumelange, with an average of 2.9h of sunshine.
How long on average sun shines in December in Rumelange?
In Rumelange, Luxembourg, the average sunshine duration in December is 2.9h.
When is the lowest UV index in Rumelange?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
How high is the UV index in December in Rumelange?
In December, the average daily maximum UV index in Rumelange is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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 - Rumelange, Luxembourg
Average temperature in December
Rumelange, Luxembourg
  • Average high temperature in December: 4.5°C

The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (3.4°C).

  • Average low temperature in December: 0.5°C

The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).

Average pressure in December - Rumelange, Luxembourg
Average pressure in December
Rumelange, Luxembourg
  • Average pressure in December: 1018.4mbar

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).

Average wind speed in December - Rumelange, Luxembourg
Average wind speed in December
Rumelange, Luxembourg
  • Average wind speed in December: 15.1km/h

The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

Average humidity in December - Rumelange, Luxembourg
Average humidity in December
Rumelange, Luxembourg
  • Average humidity in December: 91%

The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (76%).

Average rainfall in December - Rumelange, Luxembourg
Average rainfall in December
Rumelange, Luxembourg
  • Average rainfall in December: 75mm

The wettest month (with the highest rainfall) is December (75mm).
The driest month (with the least rainfall) is April (39mm).

Average rainfall days in December - Rumelange, Luxembourg
Average rainfall days in December
Rumelange, Luxembourg
  • Average rainfall days in December: 17 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is September (12.5 days).

Average snowfall in December - Rumelange, Luxembourg
Average snowfall in December
Rumelange, Luxembourg
  • Average snowfall in December: 84mm

The month with the highest snowfall is January (85mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Rumelange, Luxembourg
Average snowfall days in December
Rumelange, Luxembourg
  • Average snowfall days in December: 7.7 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Rumelange, Luxembourg
Average daylight in December /
Average sunshine in December
Rumelange, Luxembourg
  • Average daylight in December: 8h and 1min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).

Average sunshine days in December - Rumelange, Luxembourg
Average sunshine days in December
Rumelange, Luxembourg
  • Average sunshine days in December: 8 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8 days).

Average UV index in December - Rumelange, Luxembourg
Average UV index in December
Rumelange, Luxembourg
  • 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 - Rumelange, Luxembourg
Average cloud cover in December
Rumelange, Luxembourg
  • 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 38).

Average visibility in December - Rumelange, Luxembourg
Average visibility in December
Rumelange, Luxembourg
  • Average visibility in December: 7km

The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are November and December (7km).

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