December weather forecastErnster, Luxembourg

December

Weather in December

December, the first month of the winter in Ernster, is also a wintry month, with an average temperature fluctuating between 4.5°C (40.1°F) and 0.2°C (32.4°F).

Temperature

December ushers in a minor alteration in Ernster's climate, with the average high-temperature moving from November's frosty 7.8°C (46°F) to an icy 4.5°C (40.1°F). December notes an average low temperature of 0.2°C (32.4°F) in Ernster, subtly down from the daytime highs.

Humidity

December is the most humid month in Ernster, with an average relative humidity of 91%.

Rainfall

The month with the most rainfall is December, when the rain falls for 15.1 days and typically aggregates up to 61mm (2.4") of precipitation.

Snowfall

Months with snowfall in Ernster, Luxembourg, are January through May, October through December. December is the month with the most snowfall in Ernster. Snow falls for 5.9 days and accumulates 71mm (2.8") 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 December in Ernster, Luxembourg, sunrise is at 08:10 and sunset at 16:37. On the last day of the month, sunrise is at 08:31 and sunset at 16:44 CET.

Sunshine

The month with the least sunshine in Ernster is December, with an average of 3.1h 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 Ernster. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Updated: Feb 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Ernster, is 4.5°C (40.1°F), while the average low-temperature is 0.2°C (32.4°F).

The most humid month in Ernster is December, with an average relative humidity of 91%.

The average relative humidity in December in Ernster is 91%.

The month with the most rainfall in Ernster, Luxembourg, is December, when the rain falls for 15.1 days and typically aggregates up to 61mm (2.4") of precipitation.

In Ernster, Luxembourg, in December, during 15.1 rainfall days, 61mm (2.4") of precipitation is typically accumulated.

December is the month with the most snowfall. Snow falls for 5.9 days and accumulates 71mm (2.8") of snow.

In Ernster, Luxembourg, during December, snow falls for 5.9 days and regularly aggregates up to 71mm (2.8") of snow.

The month with the shortest days in Ernster, Luxembourg, is December, with an average of 8h and 12min of daylight.

In December, the average day length in Ernster, Luxembourg, is 8h and 13min.

In December, on the first day of the month, sunrise is at 08:10 and sunset at 16:37. On the last day of the month, sunrise is at 08:31 and sunset at 16:44 CET.

The month with the least sunshine is December, with an average of 3.1h of sunshine.

In December, the average sunshine duration in Ernster is 3.1h.

The months with the lowest UV index in Ernster, Luxembourg, are January, February, November and December, with an average maximum UV index of 2.

In December, the average daily maximum UV index in Ernster, Luxembourg, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

7.8°C

4.5°C

3.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.9km/h

15.8km/h

15.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Ernster, Luxembourg

Average high temperature in December: 4.5°C

The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (3.2°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 (-1.2°C).

Average pressure in December
Ernster, Luxembourg

Average pressure in December: 1018.2mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1014.1mbar).

Average wind speed in December
Ernster, Luxembourg

Average wind speed in December: 14.7km/h

The windiest month (with the highest average wind speed) is February (15.2km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).

Average humidity in December
Ernster, 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
Ernster, Luxembourg

Average rainfall in December: 61mm

The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (33mm).

Average rainfall days in December
Ernster, Luxembourg

Average rainfall days in December: 15.1 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (10.8 days).

Average snowfall in December
Ernster, Luxembourg

Average snowfall in December: 71mm

The month with the highest snowfall is December (71mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Ernster, Luxembourg

Average snowfall days in December: 5.9 days

The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Ernster, Luxembourg

Average daylight in December: 8h and 12min

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 6min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).

Average sunshine days in December
Ernster, Luxembourg

Average sunshine days in December: 11 days

The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in December
Ernster, 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
Ernster, Luxembourg

Average cloud cover in December: 70

The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in December
Ernster, Luxembourg

Average visibility in December: 8km

The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).