December weather forecastLillo, Belgium

December

Weather in December

The first month of the winter, December, is still a chilly month in Lillo, Belgium, with temperature in the range of an average high of 6.5°C (43.7°F) and an average low of 2.7°C (36.9°F).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from a chilly 9.9°C (49.8°F) in November to a still frosty 6.5°C (43.7°F). Lillo records a consistent average nighttime temperature of 2.7°C (36.9°F) in December, slightly lower than the daytime high.

Humidity

With an average relative humidity of 87%, December is the most humid month in Lillo.

Rainfall

In Lillo, during December, the rain falls for 15.7 days and regularly aggregates up to 45mm (1.77") of precipitation. In Lillo, during the entire year, the rain falls for 179.1 days and collects up to 451mm (17.76") of precipitation.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 2.1 days. Throughout December, 22mm (0.87") of snow is accumulated. Throughout the year, there are 10.6 snowfall days, and 78mm (3.07") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 0min of daylight.
On the first day of December, sunrise is at 08:25 and sunset at 16:38. On the last day of the month, sunrise is at 08:47 and sunset at 16:44 CET.

Sunshine

With an average of 3.8h of sunshine, December has the least sunshine of the year.

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 exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

In Lillo, 6.5°C (43.7°F) is the average high-temperature and 2.7°C (36.9°F) is the average low-temperature during December.

The most humid month is December, with an average relative humidity of 87%.

In December, the average relative humidity is 87%.

In Lillo, in December, it is raining for 15.7 days, with typically 45mm (1.77") of accumulated precipitation.

In Lillo, in December, snow falls for 2.1 days, with typically accumulated 22mm (0.87") of snow.

The month with the shortest days is December, with an average of 8h and 0min of daylight.

In Lillo, the average day length in December is 7h and 58min.

In December, on the first day of the month, sunrise is at 08:25 and sunset at 16:38. On the last day of the month, sunrise is at 08:47 and sunset at 16:44 CET.

December has the least sunshine of the year, with an average of 3.8h of sunshine.

In Lillo, the average sunshine duration in December is 3.8h.

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

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Lillo, Belgium

  • Average high temperature in December: 6.5°C

The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (5.2°C).

  • Average low temperature in December: 2.7°C

The month with the highest average low temperature is August (14.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.4°C).

Average pressure in December
Lillo, Belgium

  • Average pressure in December: 1016mbar

The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).

Average wind speed in December
Lillo, Belgium

  • Average wind speed in December: 17.5km/h

The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).

Average humidity in December
Lillo, Belgium

  • Average humidity in December: 87%

The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are April and August (74%).

Average rainfall in December
Lillo, Belgium

  • Average rainfall in December: 45mm

The wettest month (with the highest rainfall) is June (51mm).
The driest month (with the least rainfall) is April (22mm).

Average rainfall days in December
Lillo, Belgium

  • Average rainfall days in December: 15.7 days

The month with the highest number of rainy days is July (17.6 days).
The months with the least rainy days are February and September (12.5 days).

Average snowfall in December
Lillo, Belgium

  • Average snowfall in December: 22mm

The month with the highest snowfall is February (26mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Lillo, Belgium

  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is February (3.4 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
Lillo, Belgium

  • Average daylight in December: 8h and 0min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in December: 3h and 48min

The month with the most sunshine is July (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

Average sunshine days in December
Lillo, Belgium

  • Average sunshine days in December: 11.9 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in December
Lillo, 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, November and December (UV index 2).

Average cloud cover in December
Lillo, Belgium

  • Average cloud cover in December: 62

The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 41).

Average visibility in December
Lillo, Belgium

  • Average visibility in December: 9km

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