December weather forecastNy, Belgium

December

Weather in December

The first month of the winter, December, is still a cold month in Ny, Belgium, with an average temperature varying between 5°C (41°F) and 0.8°C (33.4°F).

Temperature

December is characterized by a mild reduction in the average high-temperature, from a frosty 8.5°C (47.3°F) in November to a wintry 5°C (41°F). Ny logs an average low-temperature of 0.8°C (33.4°F) during the nights of December, subtly lower than its daytime highs.

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 16.6 days and accumulates 66mm (2.6") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Ny. In Ny, in December, during 5.5 snowfall days, 44mm (1.73") of snow is typically accumulated. Throughout the year, there are 26 snowfall days, and 204mm (8.03") of snow is accumulated.

Daylight

With an average of 8h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:16 and sunset at 16:37. On the last day of December, in Ny, Belgium, sunrise is at 08:37 and sunset at 16:44 CET.

Sunshine

With an average of 3.4h of sunshine, December has the least sunshine of the year.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

The high-temperature during December is 5°C (41°F) and the low-temperature is 0.8°C (33.4°F).

The most humid month is December, with an average relative humidity of 91%.

In Ny, Belgium, the average relative humidity in December is 91%.

The month with the most rainfall in Ny, Belgium, is December, when the rain falls for 16.6 days and typically aggregates up to 66mm (2.6") of precipitation.

In Ny, in December, during 16.6 rainfall days, 66mm (2.6") of precipitation is typically accumulated.

In Ny, in December, during 5.5 snowfall days, 44mm (1.73") of snow is typically accumulated.

With an average of 8h and 6min of daylight, December has the shortest days of the year in Ny, Belgium.

In Ny, Belgium, the average day length in December is 8h and 7min.

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

With an average of 3.4h of sunshine, December has the least sunshine of the year in Ny.

In Ny, the average sunshine duration in December is 3.4h.

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ny.

In Ny, Belgium, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Ny, Belgium

  • Average high temperature in December: 5°C

The warmest months (with the highest average high temperature) are July and August (21.7°C).
The month with the lowest average high temperature is January (3.6°C).

  • Average low temperature in December: 0.8°C

The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).

Average pressure in December
Ny, Belgium

  • Average pressure in December: 1017.2mbar

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.2mbar).

Average wind speed in December
Ny, Belgium

  • Average wind speed in December: 16.8km/h

The windiest month (with the highest average wind speed) is December (16.8km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

Average humidity in December
Ny, Belgium

  • Average humidity in December: 91%

The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April and August (79%).

Average rainfall in December
Ny, Belgium

  • Average rainfall in December: 66mm

The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is April (29mm).

Average rainfall days in December
Ny, Belgium

  • Average rainfall days in December: 16.6 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (11.8 days).

Average snowfall in December
Ny, Belgium

  • Average snowfall in December: 44mm

The month with the highest snowfall is January (72mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Ny, Belgium

  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 8h and 6min

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 6min).

  • Average sunshine in December: 3h and 24min

The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in December
Ny, Belgium

  • Average sunshine days in December: 9.2 days

The month with the most sunshine days is March (13.7 days).
The month with the least sunshine days is December (9.2 days).

Average UV index in December
Ny, Belgium

  • 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, March, November and December (UV index 2).

Average cloud cover in December
Ny, Belgium

  • Average cloud cover in December: 67

The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 42).

Average visibility in December
Ny, Belgium

  • Average visibility in December: 8km

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