December weather forecastHeers, Belgium

December

Weather in December

The first month of the winter, December, is still a chilly month in Heers, Belgium, with an average temperature fluctuating between 6°C (42.8°F) and 2.2°C (36°F).

Temperature

The transition into December subtly indicates a reduction in the average high-temperature, down to a still chilly 6°C (42.8°F) from November's frosty 9.5°C (49.1°F). Heers upholds a consistent average temperature of 2.2°C (36°F) throughout the nights of December.

Humidity

December is the most humid month, with an average relative humidity of 88%.

Rainfall

The month with the most rainfall is December, when the rain falls for 16.5 days and typically aggregates up to 51mm (2.01") of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Heers, Belgium, in December, snow falls for 2.6 days, with typically accumulated 28mm (1.1") of snow. In Heers, Belgium, during the entire year, snow falls for 13 days and aggregates up to 99mm (3.9") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 0min of daylight.
On the first day of December, sunrise is at 08:19 and sunset at 16:36. On the last day of the month, sunrise is at 08:40 and sunset at 16:43 CET.

Sunshine

December has the least sunshine of the year, with an average of 3.6h of sunshine.

UV index

The months with the lowest UV index in Heers are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

In December, in Heers, the average high-temperature is 6°C (42.8°F), and the average low-temperature is 2.2°C (36°F).

The most humid month is December, with an average relative humidity of 88%.

In Heers, Belgium, the average relative humidity in December is 88%.

December is the month with the most rainfall in Heers, Belgium. Rain falls for 16.5 days and accumulates 51mm (2.01") of precipitation.

In Heers, Belgium, in December, during 16.5 rainfall days, 51mm (2.01") of precipitation is typically accumulated.

In Heers, in December, during 2.6 snowfall days, 28mm (1.1") of snow is typically accumulated.

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

The average day length in December is 8h and 3min.

On the first day of December, sunrise is at 08:19 and sunset at 16:36. On the last day of the month, sunrise is at 08:40 and sunset at 16:43 CET.

With an average of 3.6h of sunshine, December has the least sunshine of the year in Heers, Belgium.

In December, the average sunshine duration in Heers is 3.6h.

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

In Heers, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
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
Heers, Belgium

  • Average high temperature in December: 6°C

The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (4.8°C).

  • Average low temperature in December: 2.2°C

The month with the highest average low temperature is August (13.5°C).
The coldest months (with the lowest average low temperature) are January and February (0.8°C).

Average pressure in December
Heers, Belgium

  • Average pressure in December: 1016.6mbar

The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.8mbar).

Average wind speed in December
Heers, Belgium

  • Average wind speed in December: 17.8km/h

The windiest month (with the highest average wind speed) is December (17.8km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).

Average humidity in December
Heers, Belgium

  • Average humidity in December: 88%

The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are April and August (75%).

Average rainfall in December
Heers, Belgium

  • Average rainfall in December: 51mm

The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (23mm).

Average rainfall days in December
Heers, Belgium

  • Average rainfall days in December: 16.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (12.5 days).

Average snowfall in December
Heers, Belgium

  • Average snowfall in December: 28mm

The month with the highest snowfall is January (31mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Heers, Belgium

  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is January (4.2 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
Heers, Belgium

  • 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: 3h and 36min

The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).

Average sunshine days in December
Heers, Belgium

  • Average sunshine days in December: 11 days

The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in December
Heers, Belgium

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

Average cloud cover in December
Heers, Belgium

  • Average cloud cover in December: 61

The month with the most cloud cover is December (Cloud cover 61).
The months with the least cloud cover are April and August (Cloud cover 40).

Average visibility in December
Heers, Belgium

  • Average visibility in December: 8km

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