December weather forecastBilthoven, Netherlands

December

Weather in December

The first month of the winter, December, is still a chilly month in Bilthoven, Netherlands, with an average temperature ranging between min 2.9°C (37.2°F) and max 6.3°C (43.3°F).

Temperature

The transition to December results in a modest reduction in average high-temperature, moving from 9.5°C (49.1°F) in November to a still chilly 6.3°C (43.3°F). December registers an average low temperature of 2.9°C (37.2°F) in Bilthoven, subtly lower than the daytime maximum.

Humidity

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

Rainfall

In December, the rain falls for 8.9 days. Throughout December, 12mm (0.47") of precipitation is accumulated. Throughout the year, in Bilthoven, Netherlands, there are 116.8 rainfall days, and 163mm (6.42") of precipitation is accumulated.

Snowfall

Months with snowfall in Bilthoven are January, February and December. December is the first month it typically snows. Throughout December, in the average 1.6 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, in Bilthoven, there are 6.6 snowfall days, and 23mm (0.91") of snow is accumulated.

Daylight

With an average of 7h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:26 and sunset at 16:30. On the last day of December, in Bilthoven, sunrise is at 08:47 and sunset at 16:36 CET.

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bilthoven. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During December, Bilthoven experiences an average high-temperature of 6.3°C (43.3°F) and a low-temperature of 2.9°C (37.2°F).

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

In Bilthoven, Netherlands, the average relative humidity in December is 88%.

In Bilthoven, Netherlands, in December, during 8.9 rainfall days, 12mm (0.47") of precipitation is typically accumulated.

December is the first month it typically snows in Bilthoven. Throughout December, in the average 1.6 snowfall days, it receives 4mm (0.16") of snow.

The month with the shortest days in Bilthoven is December, with an average of 7h and 48min of daylight.

In December, the average day length in Bilthoven is 7h and 49min.

On the first day of December, sunrise is at 08:26 and sunset at 16:30. On the last day of the month, sunrise is at 08:47 and sunset at 16:36 CET.

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

In December, the average sunshine duration is 3.6h.

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

In December, the average daily maximum UV index in Bilthoven is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

9.5°C

6.3°C

5.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

16.5km/h

19km/h

18.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

19.7

17.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Bilthoven, Netherlands

Average high temperature in December: 6.3°C

The warmest months (with the highest average high temperature) are July and August (22.1°C).
The month with the lowest average high temperature is January (5.1°C).

Average low temperature in December: 2.9°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).

Average pressure in December
Bilthoven, Netherlands

Average pressure in December: 1014.7mbar

The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).

Average wind speed in December
Bilthoven, Netherlands

Average wind speed in December: 17.9km/h

The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).

Average humidity in December
Bilthoven, Netherlands

Average humidity in December: 88%

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

Average rainfall in December
Bilthoven, Netherlands

Average rainfall in December: 12mm

The wettest months (with the highest rainfall) are June and July (19mm).
The driest month (with the least rainfall) is April (8mm).

Average rainfall days in December
Bilthoven, Netherlands

Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is October (7.3 days).

Average snowfall in December
Bilthoven, Netherlands

Average snowfall in December: 4mm

The month with the highest snowfall is February (12mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Bilthoven, Netherlands

Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is February (2.2 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
Bilthoven, Netherlands

Average daylight in December: 7h and 48min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

Average sunshine in December: 3h and 36min

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

Average sunshine days in December
Bilthoven, Netherlands

Average sunshine days in December: 17 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (12.7 days).

Average UV index in December
Bilthoven, 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
Bilthoven, 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 August (Cloud cover 41).

Average visibility in December
Bilthoven, 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).