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
Flénu experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from 9.5°C (49.1°F) in November to a still chilly 6.2°C (43.2°F). During the month of December, Flénu identifies an average nighttime low-temperature of 2.2°C (36°F), slightly lower than its daytime counterpart.Humidity
December is the most humid month in Flénu, with an average relative humidity of 89%.Rainfall
December is the month with the most rainfall. Rain falls for 15.4 days and accumulates 60mm (2.36") of precipitation.Snowfall
Months with snowfall are January through March, October through December. In Flénu, during December, snow falls for 2.5 days and regularly aggregates up to 20mm (0.79") of snow. Throughout the year, there are 10.3 snowfall days, and 87mm (3.43") of snow is accumulated.Daylight
The month with the shortest days in Flénu is December, with an average of 8h and 6min of daylight.On the first day of the month, sunrise is at 08:23 and sunset at 16:43. On the last day of December, sunrise is at 08:44 and sunset at 16:50 CET.
Sunshine
The months with the least sunshine in Flénu are January and December, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index in Flénu are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 in December translates into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Flénu?
What is the most humid month in Flénu?
What is the average humidity in December in Flénu?
What is the wettest month in Flénu?
How many days does it rain in December in Flénu?
How much does it snow in Flénu in December?
What is the month with the shortest days in Flénu?
What is the average length of the day in December in Flénu?
When is the sunrise / sunset in December in Flénu?
What are the months with the least sunshine in Flénu?
How many hours of sunshine does Flénu have in December?
What is the month with the lowest UV index in Flénu?
What is the UV index reading in December in Flénu?
Average temperature in December
Flénu, Belgium
- Average high temperature in December: 6.2°C
The warmest months (with the highest average high temperature) are July and August (22.7°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in December: 2.2°C
The months with the highest average low temperature are July and August (12.9°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in December
Flénu, Belgium
- Average pressure in December: 1016.7mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).
Average wind speed in December
Flénu, Belgium
- Average wind speed in December: 18.8km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in December
Flénu, Belgium
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Flénu, Belgium
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in December
Flénu, Belgium
- Average rainfall days in December: 15.4 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is March (12.8 days).
Average snowfall in December
Flénu, Belgium
- Average snowfall in December: 20mm
The month with the highest snowfall is January (31mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Flénu, Belgium
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Flénu, Belgium
- Average daylight in December: 8h and 1min
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 6min).
- Average sunshine in December: 3h and 4min
The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in December
Flénu, Belgium
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Flénu, 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
Flénu, Belgium
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are April and August (Cloud cover 43).
Average visibility in December
Flénu, Belgium
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).
