December weather forecastRouilly-Sacey, France

December

Weather in December

The first month of the winter, December, is also a frosty month in Rouilly-Sacey, France, with temperature in the range of an average high of 6.7°C (44.1°F) and an average low of 2.1°C (35.8°F).

Temperature

With the commencement of December, Rouilly-Sacey records a moderate temperature decline, with the average high easing from November's cool 10.1°C (50.2°F) to a frosty 6.7°C (44.1°F). December nights register a minor temperature decline, steadying at a wintry 2.1°C (35.8°F).

Humidity

With an average relative humidity of 88%, December is the most humid month in Rouilly-Sacey.

Rainfall

In Rouilly-Sacey, during December, the rain falls for 16.5 days and regularly aggregates up to 53mm (2.09") of precipitation. In Rouilly-Sacey, during the entire year, the rain falls for 180.5 days and collects up to 499mm (19.65") of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Rouilly-Sacey, in December, during 3.3 snowfall days, 25mm (0.98") of snow is typically accumulated. In Rouilly-Sacey, during the entire year, snow falls for 12.4 days and aggregates up to 89mm (3.5") of snow.

Daylight

December has the shortest days of the year in Rouilly-Sacey, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 08:13 and sunset at 16:50. On the last day of December, sunrise is at 08:34 and sunset at 16:58 CET.

Sunshine

The average sunshine in December is 3.9h.

UV index

The months with the lowest UV index in Rouilly-Sacey are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.

Frequently asked questions

An average high-temperature, in December, in Rouilly-Sacey, is 6.7°C (44.1°F) and the average low-temperature is 2.1°C (35.8°F).

The most humid month is December, with an average relative humidity of 88%.

The average relative humidity in December in Rouilly-Sacey is 88%.

In Rouilly-Sacey, during December, the rain falls for 16.5 days and regularly aggregates up to 53mm (2.09") of precipitation.

In Rouilly-Sacey, in December, snow falls for 3.3 days, with typically accumulated 25mm (0.98") of snow.

The month with the shortest days is December, with an average of 8h and 24min of daylight.

In Rouilly-Sacey, the average day length in December is 8h and 25min.

On the first day of December in Rouilly-Sacey, sunrise is at 08:13 and sunset at 16:50. On the last day of the month, sunrise is at 08:34 and sunset at 16:58 CET.

In Rouilly-Sacey, France, the average sunshine duration in December is 3.9h.

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

The average daily maximum UV index in December in Rouilly-Sacey is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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
Rouilly-Sacey, France

  • Average high temperature in December: 6.7°C

The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (5.6°C).

  • Average low temperature in December: 2.1°C

The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).

Average pressure in December
Rouilly-Sacey, France

  • Average pressure in December: 1019.2mbar

The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is November (1014.3mbar).

Average wind speed in December
Rouilly-Sacey, France

  • Average wind speed in December: 13.8km/h

The windiest month (with the highest average wind speed) is February (13.9km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

Average humidity in December
Rouilly-Sacey, France

  • Average humidity in December: 88%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (70%).

Average rainfall in December
Rouilly-Sacey, France

  • Average rainfall in December: 53mm

The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is September (25mm).

Average rainfall days in December
Rouilly-Sacey, France

  • Average rainfall days in December: 16.5 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is September (11.1 days).

Average snowfall in December
Rouilly-Sacey, France

  • Average snowfall in December: 25mm

The month with the highest snowfall is January (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Rouilly-Sacey, France

  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Rouilly-Sacey, France

  • Average daylight in December: 8h and 24min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 3h and 54min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Rouilly-Sacey, France

  • Average sunshine days in December: 10 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is June (8.4 days).

Average UV index in December
Rouilly-Sacey, France

  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Rouilly-Sacey, France

  • Average cloud cover in December: 61

The months with the most cloud cover are January and December (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 35).

Average visibility in December
Rouilly-Sacey, France

  • Average visibility in December: 8km

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