December weather forecastBour, Luxembourg

December

Weather in December

December, the first month of the winter in Bour, is also an icy month, with an average temperature varying between 4.1°C (39.4°F) and 0.1°C (32.2°F).

Temperature

The start of December involves a subtle temperature drop, shifting from a frosty 7.5°C (45.5°F) in November to a wintry 4.1°C (39.4°F). An average low-temperature of 0.1°C (32.2°F) characterizes Bour's December nights.

Humidity

The most humid month is December, with an average relative humidity of 92%.

Rainfall

The month with the most rainfall in Bour is December, when the rain falls for 16.8 days and typically aggregates up to 70mm (2.76") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Bour, during December, snow falls for 6.7 days and regularly aggregates up to 64mm (2.52") of snow. Throughout the year, there are 30.3 snowfall days, and 249mm (9.8") of snow is accumulated.

Daylight

December has the shortest days of the year in Bour, with an average of 8h and 12min of daylight.
On the first day of December, sunrise is at 08:11 and sunset at 16:38. On the last day of the month, sunrise is at 08:32 and sunset at 16:45 CET.

Sunshine

With an average of 2.9h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index in Bour, Luxembourg, are January through March, 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 unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.

Frequently asked questions

Bour in December has an average high-temperature of 4.1°C (39.4°F) and an average low-temperature of 0.1°C (32.2°F).

The most humid month is December, with an average relative humidity of 92%.

In Bour, Luxembourg, the average relative humidity in December is 92%.

December is the month with the most rainfall in Bour. Rain falls for 16.8 days and accumulates 70mm (2.76") of precipitation.

In Bour, in December, during 16.8 rainfall days, 70mm (2.76") of precipitation is typically accumulated.

In Bour, in December, during 6.7 snowfall days, 64mm (2.52") of snow is typically accumulated.

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

The average day length in December is 8h and 13min.

In December, on the first day of the month, sunrise is at 08:11 and sunset at 16:38. On the last day of the month, sunrise is at 08:32 and sunset at 16:45 CET.

December has the least sunshine of the year in Bour, with an average of 2.9h of sunshine.

In December, the average sunshine duration is 2.9h.

The months with the lowest UV index in Bour are January through March, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bour, Luxembourg

  • Average high temperature in December: 4.1°C

The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (2.7°C).

  • Average low temperature in December: 0.1°C

The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).

Average pressure in December
Bour, Luxembourg

  • Average pressure in December: 1018mbar

The month with the highest atmospheric pressure is December (1018mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).

Average wind speed in December
Bour, Luxembourg

  • Average wind speed in December: 15.6km/h

The windiest month (with the highest average wind speed) is February (15.9km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

Average humidity in December
Bour, Luxembourg

  • 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 (79%).

Average rainfall in December
Bour, Luxembourg

  • Average rainfall in December: 70mm

The wettest month (with the highest rainfall) is December (70mm).
The driest month (with the least rainfall) is April (36mm).

Average rainfall days in December
Bour, Luxembourg

  • Average rainfall days in December: 16.8 days

The months with the highest number of rainy days are June and July (19.1 days).
The month with the least rainy days is February (12.7 days).

Average snowfall in December
Bour, Luxembourg

  • Average snowfall in December: 64mm

The month with the highest snowfall is January (78mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Bour, Luxembourg

  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Bour, 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: 2h and 54min

The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).

Average sunshine days in December
Bour, Luxembourg

  • Average sunshine days in December: 9 days

The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is June (8.1 days).

Average UV index in December
Bour, 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, March, November and December (UV index 2).

Average cloud cover in December
Bour, Luxembourg

  • Average cloud cover in December: 72

The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in December
Bour, Luxembourg

  • Average visibility in December: 7km

The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are November and December (7km).