December weather forecast and climate
Grandmetz, Belgium

Weather in December

December, the first month of the winter, in Grandmetz, is still a chilly month, with average temperature ranging between max 6.4°C (43.5°F) and min 2.3°C (36.1°F).

Temperature

In Grandmetz, Belgium, the average high-temperature marginally drops, from 9.7°C (49.5°F) in November, to a still frosty 6.4°C (43.5°F). In Grandmetz, the average low-temperature is 2.3°C (36.1°F).

Humidity

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

Rainfall

The month with the most rainfall in Grandmetz is December when the rain falls for 17.4 days and typically aggregates up to 65mm (2.56") of precipitation.

Snowfall

Months with snowfall are January through March, October through December. In December, it is snowing for 3 days. Throughout December, 19mm (0.75") of snow is accumulated. In Grandmetz, during the entire year, snow falls for 14.5 days, and aggregates up to 110mm (4.33") of snow.

Daylight

With an average of 8.1h of daylight, December has the shortest days of the year.

Sunshine

December has the least sunshine of the year in Grandmetz, with an average of 3.7h of sunshine.

UV index

Months with the lowest UV index in Grandmetz are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Grandmetz?

In December, in Grandmetz, Belgium, the average high-temperature is 6.4°C (43.5°F), and the average low-temperature is 2.3°C (36.1°F).

What is the most humid month in Grandmetz?

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

What is the average humidity in December in Grandmetz?

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

How many days does it rain in December in Grandmetz?

In Grandmetz, Belgium, in December, it is raining for 17.4 days, with typically 65mm (2.56") of accumulated precipitation.

What is the rainiest month in Grandmetz?

The month with the most rainfall is December when the rain falls for 17.4 days and typically aggregates up to 65mm (2.56") of precipitation.

How much does it snow in Grandmetz in December?

In Grandmetz, Belgium, in December, snow falls for 3 days, with typically accumulated 19mm (0.75") of snow.

What is the month with the shortest days in Grandmetz?

The month with the shortest days in Grandmetz is December, with an average of 8.1h of daylight.

How many hours of daylight does Grandmetz have in December?

In December, the average length of the day in Grandmetz, Belgium, is 8.1h.

What is the month with the least sunshine in Grandmetz?

December has the least sunshine of the year in Grandmetz, with an average of 3.7h of sunshine.

How long on average sun shines in December in Grandmetz?

The average sunshine in December in Grandmetz is 3.7h.

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

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

How high is the UV index in December in Grandmetz?

The average daily maximum UV index in December in Grandmetz, Belgium, is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Grandmetz, Belgium

Average temperature in December - Grandmetz, Belgium
  • Average high temperature in December: 6.4°C

The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (5.3°C).

  • Average low temperature in December: 2.3°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 (1°C).

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Average pressure in December
Grandmetz, Belgium

Average pressure in December - Grandmetz, Belgium
  • Average pressure in December: 1016.5mbar

The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).

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Average wind speed in December
Grandmetz, Belgium

Average wind speed in December - Grandmetz, Belgium
  • Average wind speed in December: 18.5km/h

The windiest month (with the highest average wind speed) is December (18.5km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).

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Average humidity in December
Grandmetz, Belgium

Average humidity in December - Grandmetz, Belgium
  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).

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Average rainfall in December
Grandmetz, Belgium

Average rainfall in December - Grandmetz, Belgium
  • Average rainfall in December: 65mm

The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is July (21mm).

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Average rainfall days in December
Grandmetz, Belgium

Average rainfall days in December - Grandmetz, Belgium
  • Average rainfall days in December: 17.4 days

The month with the highest number of rainy days is December (17.4 days).
The month with the least rainy days is September (9.3 days).

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Average snowfall in December
Grandmetz, Belgium

Average snowfall in December - Grandmetz, Belgium
  • Average snowfall in December: 19mm

The month with the highest snowfall is January (42mm).
Months with the least snowfall are April, May, June, July, August and September (0mm).

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Average snowfall days in December
Grandmetz, Belgium

Average snowfall days in December - Grandmetz, Belgium
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is February (4.7 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Grandmetz, Belgium

Average daylight in December / Average sunshine in December - Grandmetz, Belgium
  • Average daylight in December: 8.1h

The month with the longest days is June (Average daylight: 16.4h).
The month with the shortest days is December (Average daylight: 8.1h).

  • Average sunshine in December: 3.7h

The month with the most sunshine is June (Average sunshine: 9.2h).
The month with the least sunshine is December (Average sunshine: 3.7h).

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Average sunshine days in December
Grandmetz, Belgium

Average sunshine days in December - Grandmetz, Belgium
  • Average sunshine days in December: 9.4 days

The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is February (8.3 days).

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Average UV index in December
Grandmetz, Belgium

Average UV index in December - Grandmetz, Belgium
  • Average UV index in December: 2

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

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Average cloud cover in December
Grandmetz, Belgium

Average cloud cover in December - Grandmetz, Belgium
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 62).
Months with the least cloud cover are April and August (Cloud cover 42).

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Average visibility in December
Grandmetz, Belgium

Average visibility in December - Grandmetz, Belgium
  • Average visibility in December: 9km

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

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