December weather forecastRilland, Netherlands

December

Weather in December

December, the first month of the winter in Rilland, is also a frosty month, with an average temperature fluctuating between 6.6°C (43.9°F) and 3.5°C (38.3°F).

Temperature

A mild drop in Rilland's average high-temperature is observed in December, transitioning from a cool 10°C (50°F) in November to a chilly 6.6°C (43.9°F). Nights in December in Rilland showcase an average temperature of 3.5°C (38.3°F), slightly cooler than the daytime.

Humidity

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

Rainfall

December is the month with the most rainfall in Rilland. Rain falls for 18.9 days and accumulates 62mm (2.44") of precipitation.

Snowfall

Months with snowfall in Rilland are January through April, November and December. In December, in Rilland, it is snowing for 2.7 days. Throughout December, 26mm (1.02") of snow is accumulated. Throughout the year, in Rilland, Netherlands, there are 12.9 snowfall days, and 96mm (3.78") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 7h and 54min of daylight.
On the first day of the month, sunrise is at 08:26 and sunset at 16:38. On the last day of December, in Rilland, sunrise is at 08:48 and sunset at 16:44 CET.

Sunshine

December has the least sunshine of the year in Rilland, with an average of 3.5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rilland. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 in December translates into this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

An average high-temperature, in December, in Rilland, is 6.6°C (43.9°F) and the average low-temperature is 3.5°C (38.3°F).

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

In Rilland, Netherlands, the average relative humidity in December is 87%.

The month with the most rainfall in Rilland, Netherlands, is December, when the rain falls for 18.9 days and typically aggregates up to 62mm (2.44") of precipitation.

In Rilland, Netherlands, in December, during 18.9 rainfall days, 62mm (2.44") of precipitation is typically accumulated.

In Rilland, Netherlands, in December, snow falls for 2.7 days, with typically accumulated 26mm (1.02") of snow.

December has the shortest days of the year, with an average of 7h and 54min of daylight.

The average day length in December in Rilland is 7h and 56min.

On the first day of December in Rilland, Netherlands, sunrise is at 08:26 and sunset at 16:38. On the last day of the month, sunrise is at 08:48 and sunset at 16:44 CET.

The month with the least sunshine is December, with an average of 3.5h of sunshine.

In December, the average sunshine duration in Rilland is 3.5h.

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

In December, the average daily maximum UV index in Rilland is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Rilland, Netherlands

  • Average high temperature in December: 6.6°C

The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (5.6°C).

  • Average low temperature in December: 3.5°C

The month with the highest average low temperature is August (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (1.9°C).

Average pressure in December
Rilland, Netherlands

  • Average pressure in December: 1015.4mbar

The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).

Average wind speed in December
Rilland, Netherlands

  • Average wind speed in December: 18.3km/h

The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest months (with the lowest average wind speed) are July and August (12.7km/h).

Average humidity in December
Rilland, Netherlands

  • Average humidity in December: 87%

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

Average rainfall in December
Rilland, Netherlands

  • Average rainfall in December: 62mm

The wettest month (with the highest rainfall) is December (62mm).
The driest month (with the least rainfall) is April (25mm).

Average rainfall days in December
Rilland, Netherlands

  • Average rainfall days in December: 18.9 days

The month with the highest number of rainy days is August (19.2 days).
The month with the least rainy days is April (14.6 days).

Average snowfall in December
Rilland, Netherlands

  • Average snowfall in December: 26mm

The month with the highest snowfall is February (33mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Rilland, Netherlands

  • Average snowfall days in December: 2.7 days

The month with the highest number of snowfall days is February (4.1 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
Rilland, Netherlands

  • Average daylight in December: 7h and 54min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in December: 3h and 30min

The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days in December
Rilland, Netherlands

  • Average sunshine days in December: 7.5 days

The month with the most sunshine days is April (12.4 days).
The month with the least sunshine days is December (7.5 days).

Average UV index in December
Rilland, Netherlands

  • 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
Rilland, Netherlands

  • Average cloud cover in December: 65

The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 41).

Average visibility in December
Rilland, Netherlands

  • 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).