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
The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from 9.7°C (49.5°F) in November to a still chilly 6.3°C (43.3°F). December nights reflect a consistent temperature dip to a cold 2.4°C (36.3°F), a slight descent from daytime peaks.Humidity
With an average relative humidity of 88%, December is the most humid month.Rainfall
December is the month with the most rainfall in Jette. 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 Jette. In Jette, Belgium, in December, snow falls for 3.4 days, with typically accumulated 36mm (1.42") of snow. Throughout the year, in Jette, there are 16.4 snowfall days, and 133mm (5.24") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 0min of daylight.On the first day of the month, sunrise is at 08:23 and sunset at 16:39. On the last day of December, in Jette, sunrise is at 08:45 and sunset at 16:46 CET.
Sunshine
December has the least sunshine of the year, 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 Jette. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Jette in December?
What is the most humid month in Jette?
What is the average humidity in December in Jette?
What is the rainiest month in Jette?
How many days does it rain in December in Jette?
How much does it snow in Jette in December?
What is the month with the shortest days in Jette?
What is the average length of the day in December in Jette?
When is the sunrise / sunset in December in Jette?
What is the month with the least sunshine in Jette?
How long on average sun shines in December in Jette?
What are the months with the lowest UV index in Jette?
How high is the UV index in December in Jette?
Average temperature in December
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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
Jette, 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).
