December weather forecastArriana, Greece

December

Weather in December

December, the first month of the winter in Arriana, is also a frosty month, with an average temperature varying between 9.6°C (49.3°F) and 3.8°C (38.8°F).

Temperature

As Arriana enters December, the average high-temperature decreases from the a mild 14.9°C (58.8°F) of November to a chilly 9.6°C (49.3°F). During the December nights, an average temperature of 3.8°C (38.8°F) is observed.

Humidity

In Arriana, the average relative humidity in December is 75%.

Rainfall

In Arriana, Greece, in December, it is raining for 11.8 days, with typically 48mm (1.89") of accumulated precipitation. In Arriana, during the entire year, the rain falls for 125.2 days and collects up to 480mm (18.9") of precipitation.

Snowfall

Months with snowfall in Arriana are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.9 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Arriana, there are 5.3 snowfall days, and 41mm (1.61") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 07:23 and sunset at 16:49. On the last day of December, in Arriana, Greece, sunrise is at 07:42 and sunset at 16:58 EET.

Sunshine

In Arriana, the average sunshine in December is 5.8h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. To protect against the Sun's most potent rays, avoid direct exposure around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

The high-temperature, in December, in Arriana, is 9.6°C (49.3°F), while the low-temperature averages to 3.8°C (38.8°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 34°C (93.2°F).

The average relative humidity in December is 75%.

In Arriana, Greece, during December, the rain falls for 11.8 days and regularly aggregates up to 48mm (1.89") of precipitation.

December is the first month it typically snows in Arriana. Throughout December, in the average 0.9 snowfall days, it receives 5mm (0.2") of snow.

The month with the shortest days in Arriana is December, with an average of 9h and 18min of daylight.

In December, the average day length in Arriana, Greece, is 9h and 17min.

In December, on the first day of the month, sunrise is at 07:23 and sunset at 16:49. On the last day of the month, in Arriana, Greece, sunrise is at 07:42 and sunset at 16:58 EET.

The average sunshine duration in December in Arriana is 5.8h.

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Arriana, Greece

  • Average high temperature in December: 9.6°C

The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is January (7.7°C).

  • Average low temperature in December: 3.8°C

The month with the highest average low temperature is August (19.8°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).

Average pressure in December
Arriana, Greece

  • Average pressure in December: 1019.6mbar

The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is July (1012.1mbar).

Average wind speed in December
Arriana, Greece

  • Average wind speed in December: 11.7km/h

The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is June (9.7km/h).

Average humidity in December
Arriana, Greece

  • Average humidity in December: 75%

The months with the highest relative humidity are January and February (78%).
The month with the lowest relative humidity is August (49%).

Average rainfall in December
Arriana, Greece

  • Average rainfall in December: 48mm

The wettest month (with the highest rainfall) is January (77mm).
The driest month (with the least rainfall) is August (8mm).

Average rainfall days in December
Arriana, Greece

  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is March (14.7 days).
The month with the least rainy days is August (3.9 days).

Average snowfall in December
Arriana, Greece

  • Average snowfall in December: 5mm

The months with the highest snowfall are January, February and March (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Arriana, Greece

  • Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is January (2.4 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
Arriana, Greece

  • Average daylight in December: 9h and 18min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 48min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in December
Arriana, Greece

  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (13.5 days).

Average UV index in December
Arriana, Greece

  • Average UV index in December: 2

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Arriana, Greece

  • Average cloud cover in December: 37

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 12).

Average visibility in December
Arriana, Greece

  • Average visibility in December: 10km

The months with the highest visibility are April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February, March and November (9km).