December weather forecastGratini, Greece

December

Weather in December

The first month of the winter, December, is still a chilly month in Gratini, Greece, with an average temperature varying between 9.6°C (49.3°F) and 3.8°C (38.8°F).

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a mild 14.9°C (58.8°F) in November to a chilly 9.6°C (49.3°F). Gratini records an average low-temperature of 3.8°C (38.8°F) throughout the month of December.

Humidity

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

Rainfall

In Gratini, Greece, in December, during 11.8 rainfall days, 48mm (1.89") of precipitation is typically accumulated. Throughout the year, there are 125.2 rainfall days, and 480mm (18.9") of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall. 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 Gratini, there are 5.3 snowfall days, and 41mm (1.61") of snow is accumulated.

Daylight

December has the shortest days of the year in Gratini, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 07:24 and sunset at 16:49. On the last day of the month, sunrise is at 07:43 and sunset at 16:59 EET.

Sunshine

In December, the average sunshine is 5.8h.

UV index

The months with the lowest UV index in Gratini, Greece, are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. When the Sun is at its strongest around midday, find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

The average high-temperature, in December, in Gratini, is 9.6°C (49.3°F), while the average low-temperature is 3.8°C (38.8°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 34°C (93.2°F).

The average relative humidity in December in Gratini is 75%.

In Gratini, 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 Gratini, Greece. Throughout December, in the average 0.9 snowfall days, it receives 5mm (0.2") of snow.

December has the shortest days of the year in Gratini, Greece, with an average of 9h and 18min of daylight.

In Gratini, Greece, the average day length in December is 9h and 16min.

In December, on the first day of the month, sunrise is at 07:24 and sunset at 16:49. On the last day of the month, in Gratini, sunrise is at 07:43 and sunset at 16:59 EET.

The average sunshine duration in December is 5.8h.

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

The average daily maximum UV index in December in Gratini, Greece, is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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
Gratini, 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).