Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Olen records a mild change in average high-temperature during December, easing from 9.9°C (49.8°F) in November to a still frosty 6.5°C (43.7°F). Olen maintains a minor drop in temperature during December nights, with averages of 2.7°C (36.9°F).Humidity
The most humid month is December, with an average relative humidity of 87%.Rainfall
In December, the rain falls for 15.7 days. Throughout December, 45mm (1.77") of precipitation is accumulated. In Olen, 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 Olen. In Olen, in December, during 2.1 snowfall days, 22mm (0.87") of snow is typically accumulated. Throughout the year, in Olen, there are 10.6 snowfall days, and 78mm (3.07") of snow is accumulated.Daylight
December has the shortest days of the year in Olen, with an average of 8h and 0min of daylight.On the first day of the month, sunrise is at 08:22 and sunset at 16:36. On the last day of December, sunrise is at 08:44 and sunset at 16:43 CET.
Sunshine
The month with the least sunshine in Olen is December, with an average of 3.8h 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 Olen. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
Is December cold in Olen?
What is the most humid month in Olen?
What is the average humidity in December in Olen?
How much does it rain in Olen in December?
How many days does it snow in December in Olen?
What is the month with the shortest days in Olen?
What is the average length of the day in December in Olen?
What time are sunrise and sunset in December in Olen?
What is the month with the least sunshine in Olen?
How many hours of sunshine does Olen have in December?
What are the months with the lowest UV index in Olen?
What is the UV index reading in December in Olen?
Average temperature in December
Olen, 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
Olen, 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
Olen, 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
Olen, 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
Olen, 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
Olen, 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
Olen, 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
Olen, 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
Olen, 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 5min
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
Olen, 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
Olen, 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
Olen, 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
Olen, 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).
Olen, Belgium
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