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
Longeau's December weather features a light decline in high-temperatures, reducing from a frosty 7.5°C (45.5°F) in November to a wintry 4.4°C (39.9°F). The nighttime temperature in Longeau demonstrates a marginal decline, averaging at 0.2°C (32.4°F) during December.Humidity
December is the most humid month in Longeau, with an average relative humidity of 92%.Rainfall
December is the month with the most rainfall. Rain falls for 14.6 days and accumulates 73mm (2.87") of precipitation.Snowfall
January through May, October through December are months with snowfall. The months with the most snowfall in Longeau are January and December, with an average 80mm (3.15") of accumulated snow.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Longeau, Belgium.On the first day of December, sunrise is at 08:12 and sunset at 16:39. On the last day of the month, sunrise is at 08:33 and sunset at 16:46 CET.
Sunshine
With an average of 3h of sunshine, December has the least sunshine of the year in Longeau.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
How cold is it in Longeau in December?
What is the most humid month in Longeau?
What is the average humidity in December in Longeau?
What is the rainiest month in Longeau?
How much does it rain in Longeau in December?
When does it snow the most in Longeau?
How much does it snow in Longeau in December?
What is the month with the shortest days in Longeau?
What is the average length of the day in December in Longeau?
What time are sunrise and sunset in December in Longeau?
What is the month with the least sunshine in Longeau?
How many hours of sunshine does Longeau have in December?
When is the lowest UV index in Longeau?
What is the UV index reading in December in Longeau?
Average temperature in December
Longeau, Belgium
- Average high temperature in December: 4.4°C
The warmest months (with the highest average high temperature) are July and August (21.8°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in December: 0.2°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.1°C).
Average pressure in December
Longeau, Belgium
- Average pressure in December: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in December
Longeau, Belgium
- Average wind speed in December: 15.6km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in December
Longeau, Belgium
- Average humidity in December: 92%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and August (78%).
Average rainfall in December
Longeau, Belgium
- Average rainfall in December: 73mm
The wettest month (with the highest rainfall) is December (73mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in December
Longeau, Belgium
- Average rainfall days in December: 14.6 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in December
Longeau, Belgium
- Average snowfall in December: 80mm
The months with the highest snowfall are January and December (80mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Longeau, Belgium
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Longeau, Belgium
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in December
Longeau, Belgium
- Average sunshine days in December: 9 days
The months with the most sunshine days are April and September (14.7 days).
The month with the least sunshine days is December (9 days).
Average UV index in December
Longeau, Belgium
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Longeau, Belgium
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Longeau, Belgium
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The month with the lowest visibility is November (7km).
Longeau, Belgium
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