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
December
Weather in December
Temperature
December is characterized by a mild reduction in the average high-temperature, from a chilly 9.7°C (49.5°F) in November to a still frosty 6.3°C (43.3°F). Diegem registers a steady nighttime temperature averaging a cold 2.4°C (36.3°F) throughout December.Humidity
December is the most humid month, with an average relative humidity of 88%.Rainfall
December is the month with the most rainfall. Rain falls for 18.2 days and accumulates 60mm (2.36") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Diegem, in December, snow falls for 3.4 days, with typically accumulated 36mm (1.42") of snow. In Diegem, during the entire year, snow falls for 16.4 days and aggregates up to 133mm (5.24") of snow.Daylight
With an average of 8h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 08:23 and sunset at 16:39. On the last day of the month, sunrise is at 08:44 and sunset at 16:46 CET.
Sunshine
The month with the least sunshine 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. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the most humid month?
What is the average humidity in December in Diegem?
What is the rainiest month?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Diegem have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Diegem have in December?
What is the month with the lowest UV index in Diegem?
What is the UV index intensity in December?
Average temperature in December
Diegem, Belgium
- Average high temperature in December: 6.3°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 (5.1°C).
- Average low temperature in December: 2.4°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in December
Diegem, Belgium
- Average pressure in December: 1016.3mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in December
Diegem, Belgium
- Average wind speed in December: 18km/h
The windiest month (with the highest average wind speed) is December (18km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in December
Diegem, Belgium
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are April, July and August (75%).
Average rainfall in December
Diegem, Belgium
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Diegem, Belgium
- Average rainfall days in December: 18.2 days
The months with the highest number of rainy days are May and July (18.8 days).
The months with the least rainy days are February and September (13.7 days).
Average snowfall in December
Diegem, Belgium
- Average snowfall in December: 36mm
The month with the highest snowfall is February (47mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Diegem, Belgium
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is February (5.2 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
Diegem, Belgium
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 24min).
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 0min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Diegem, Belgium
- Average sunshine days in December: 8.9 days
The month with the most sunshine days is March (12.5 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Diegem, 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
Diegem, Belgium
- Average cloud cover in December: 62
The months with the most cloud cover are January and December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in December
Diegem, Belgium
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
