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
The move into December indicates a slight reduction in the average high-temperature, down from November's frosty 8°C (46.4°F) to a cold 4.5°C (40.1°F). December nights in Altwies witness a mild cool down to an average low of 0.5°C (32.9°F).Humidity
With an average relative humidity of 91%, December is the most humid month.Rainfall
December is the month with the most rainfall in Altwies. Rain falls for 17 days and accumulates 75mm (2.95") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Altwies, in December, during 7.7 snowfall days, 84mm (3.31") of snow is typically accumulated. In Altwies, during the entire year, snow falls for 32.5 days and aggregates up to 279mm (10.98") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 12min of daylight.On the first day of the month, sunrise is at 08:10 and sunset at 16:38. On the last day of December, sunrise is at 08:31 and sunset at 16:45 CET.
Sunshine
With an average of 2.9h of sunshine, December has the least sunshine of the year in Altwies.UV index
The months with the lowest UV index 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 hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Altwies?
What is the most humid month in Altwies?
What is the average humidity in December in Altwies?
What is the rainiest month in Altwies?
How much does it rain in Altwies in December?
How much does it snow in Altwies in December?
What is the month with the shortest days in Altwies?
What is the average length of the day in December in Altwies?
What time are sunrise and sunset in December in Altwies?
What is the month with the least sunshine in Altwies?
How long on average sun shines in December in Altwies?
What are the months with the lowest UV index in Altwies?
What is the UV index reading in December in Altwies?
Average temperature in December
Altwies, Luxembourg
- Average high temperature in December: 4.5°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in December: 0.5°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).
Average pressure in December
Altwies, Luxembourg
- Average pressure in December: 1018.4mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).
Average wind speed in December
Altwies, Luxembourg
- Average wind speed in December: 15.1km/h
The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in December
Altwies, Luxembourg
- Average humidity in December: 91%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Altwies, Luxembourg
- Average rainfall in December: 75mm
The wettest month (with the highest rainfall) is December (75mm).
The driest month (with the least rainfall) is April (39mm).
Average rainfall days in December
Altwies, Luxembourg
- Average rainfall days in December: 17 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is September (12.5 days).
Average snowfall in December
Altwies, Luxembourg
- Average snowfall in December: 84mm
The month with the highest snowfall is January (85mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Altwies, Luxembourg
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Altwies, Luxembourg
- 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: 2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in December
Altwies, Luxembourg
- Average sunshine days in December: 8 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is December (8 days).
Average UV index in December
Altwies, Luxembourg
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Altwies, Luxembourg
- 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 38).
Average visibility in December
Altwies, Luxembourg
- Average visibility in December: 7km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are November and December (7km).
Altwies, Luxembourg
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