December weather forecast
Wiltz, Luxembourg

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Weather in December

December welcomes winter back to Wiltz. Frosty temperatures settle in, and the snowfall reappears with increasing frequency. As expected, outdoor activities shift as locals partake in winter sports or retreat by cozy indoor fireplaces. Sunshine hours reach their lowest point due to decreased daylight hours. The end of the year witnesses the heaviest snowfall of 86mm (3.39"), coupled with the maximum relative humidity of 93%.

Temperature

December is marked by a subtle drop in average high-temperatures, transitioning from a frosty 7.3°C (45.1°F) in November to a wintry 4.1°C (39.4°F). Wiltz experiences a steady nighttime temperature of -0.3°C (31.5°F) throughout the month of December.

Humidity

With an average relative humidity of 93%, December is the most humid month.

Rainfall

The month with the most rainfall in Wiltz is December, when the rain falls for 15.4 days and typically aggregates up to 76mm (2.99") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, in Wiltz, it is snowing for 8.1 days. Throughout December, 86mm (3.39") of snow is accumulated. Throughout the year, in Wiltz, Luxembourg, there are 36.3 snowfall days, and 327mm (12.87") of snow is accumulated.

Daylight

With an average of 8h and 12min of daylight, December has the shortest days of the year in Wiltz.
On the first day of December in Wiltz, sunrise is at 08:13 and sunset at 16:37. On the last day of the month, sunrise is at 08:34 and sunset at 16:44 CET.

Sunshine

The month with the least sunshine is December, with an average of 2.6h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

Is it cold in Wiltz during December?

In Wiltz, in December, the average high-temperature is 4.1°C (39.4°F), and the average low-temperature is -0.3°C (31.5°F).

What is the most humid month in Wiltz?

The most humid month in Wiltz is December, with an average relative humidity of 93%.

What is the average humidity in December in Wiltz?

In Wiltz, Luxembourg, the average relative humidity in December is 93%.

What is the wettest month in Wiltz?

December is the month with the most rainfall. Rain falls for 15.4 days and accumulates 76mm (2.99") of precipitation.

How much does it rain in Wiltz in December?

In Wiltz, in December, it is raining for 15.4 days, with typically 76mm (2.99") of accumulated precipitation.

How many days does it snow in December in Wiltz?

In Wiltz, in December, snow falls for 8.1 days, with typically accumulated 86mm (3.39") of snow.

What is the month with the shortest days in Wiltz?

The month with the shortest days in Wiltz, Luxembourg, is December, with an average of 8h and 12min of daylight.

What is the average length of the day in December in Wiltz?

In Wiltz, the average day length in December is 8h and 10min.

What time are sunrise and sunset in December in Wiltz?

In December, on the first day of the month, sunrise is at 08:13 and sunset at 16:37. On the last day of the month, sunrise is at 08:34 and sunset at 16:44 CET.

What is the month with the least sunshine in Wiltz?

The month with the least sunshine in Wiltz is December, with an average of 2.6h of sunshine.

How many hours of sunshine does Wiltz have in December?

In Wiltz, Luxembourg, the average sunshine duration in December is 2.6h.

What are the months with the lowest UV index in Wiltz?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Wiltz.

What is the UV index reading in December in Wiltz?

In Wiltz, Luxembourg, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Wiltz, Luxembourg

Average temperature in December - Wiltz, Luxembourg
  • Average high temperature in December: 4.1°C

The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in December: -0.3°C

The months with the highest average low temperature are July and August (11.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.8°C).

Average pressure in December
Wiltz, Luxembourg

Average pressure in December - Wiltz, Luxembourg
  • Average pressure in December: 1017.8mbar

The months with the highest atmospheric pressure are September and December (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.8mbar).

Average wind speed in December
Wiltz, Luxembourg

Average wind speed in December - Wiltz, Luxembourg
  • Average wind speed in December: 15.9km/h

The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).

Average humidity in December
Wiltz, Luxembourg

Average humidity in December - Wiltz, Luxembourg
  • Average humidity in December: 93%

The month with the highest relative humidity is December (93%).
The month with the lowest relative humidity is April (79%).

Average rainfall in December
Wiltz, Luxembourg

Average rainfall in December - Wiltz, Luxembourg
  • Average rainfall in December: 76mm

The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is April (37mm).

Average rainfall days in December
Wiltz, Luxembourg

Average rainfall days in December - Wiltz, Luxembourg
  • Average rainfall days in December: 15.4 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (11.1 days).

Average snowfall in December
Wiltz, Luxembourg

Average snowfall in December - Wiltz, Luxembourg
  • Average snowfall in December: 86mm

The month with the highest snowfall is February (90mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Wiltz, Luxembourg

Average snowfall days in December - Wiltz, Luxembourg
  • Average snowfall days in December: 8.1 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Wiltz, Luxembourg

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

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is July (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).

Average sunshine days in December
Wiltz, Luxembourg

Average sunshine days in December - Wiltz, Luxembourg
  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is September (13 days).
The month with the least sunshine days is June (7.2 days).

Average UV index in December
Wiltz, Luxembourg

Average UV index in December - Wiltz, Luxembourg
  • Average UV index in December: 2

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

Average cloud cover in December
Wiltz, Luxembourg

Average cloud cover in December - Wiltz, Luxembourg
  • Average cloud cover in December: 76

The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 44).

Average visibility in December
Wiltz, Luxembourg

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

The month with the highest visibility is April (9km).
The months with the lowest visibility are January, October, November and December (7km).

Wiltz, Luxembourg

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