December weather forecastSliffert, Netherlands
December
Weather in December
December, the first month of the winter in Sliffert, is also a frosty month, with temperature in the range of an average low of 2.5°C (36.5°F) and an average high of 6°C (42.8°F).Temperature
December implies a soft temperature shift, with average high-temperatures reducing from November's frosty 9.4°C (48.9°F) to a still chilly 6°C (42.8°F). A consistent average low of 2.5°C (36.5°F) is noted in Sliffert throughout December, only a small step down from its daytime high.Humidity
With an average relative humidity of 88%, December is the most humid month in Sliffert.Rainfall
The wettest months in Sliffert are July, August and December, with an average 32mm (1.26") of rainfall.Snowfall
January through March, November and December are months with snowfall in Sliffert. In Sliffert, in December, during 3 snowfall days, 17mm (0.67") of snow is typically accumulated. Throughout the year, in Sliffert, there are 12.3 snowfall days, and 79mm (3.11") 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 December, sunrise is at 08:21 and sunset at 16:33. On the last day of the month, sunrise is at 08:43 and sunset at 16:39 CET.
Sunshine
With an average of 3.6h of sunshine, December has the least sunshine of the year in Sliffert, Netherlands.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sliffert, Netherlands
- Average high temperature in December: 6°C
The warmest months (with the highest average high temperature) are July and August (23.1°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in December: 2.5°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 (1.3°C).
Average pressure in December
Sliffert, Netherlands
- Average pressure in December: 1015.7mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in December
Sliffert, Netherlands
- 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 (11.3km/h).
Average humidity in December
Sliffert, 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 (73%).
Average rainfall in December
Sliffert, Netherlands
- Average rainfall in December: 32mm
The wettest months (with the highest rainfall) are July, August and December (32mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in December
Sliffert, Netherlands
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in December
Sliffert, Netherlands
- Average snowfall in December: 17mm
The month with the highest snowfall is February (32mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Sliffert, Netherlands
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is February (4.3 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
Sliffert, 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 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Sliffert, Netherlands
- Average sunshine days in December: 13 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in December
Sliffert, 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
Sliffert, Netherlands
- Average cloud cover in December: 64
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in December
Sliffert, 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).





