December weather forecastKerastaris, Greece

December

Weather in December

The first month of the winter, December, is still a cool month in Kerastaris, Greece, with an average temperature varying between 4.4°C (39.9°F) and 12.1°C (53.8°F).

Temperature

In the transition to December, Kerastaris observes a minor drop in the average high-temperature, shifting from a refreshing 16.5°C (61.7°F) in November to a cool 12.1°C (53.8°F). In Kerastaris, an average nighttime temperature of 4.4°C (39.9°F) is expected during December.

Humidity

The average relative humidity in December in Kerastaris is 82%.

Rainfall

In December, the rain falls for 13.8 days. Throughout December, 73mm (2.87") of precipitation is accumulated. Throughout the year, there are 148.3 rainfall days, and 654mm (25.75") of precipitation is accumulated.

Snowfall

Months with snowfall in Kerastaris, Greece, are January through April, November and December. In Kerastaris, in December, snow falls for 2.8 days, with typically accumulated 103mm (4.06") of snow. Throughout the year, there are 15.9 snowfall days, and 410mm (16.14") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 07:27 and sunset at 17:13. On the last day of the month, sunrise is at 07:45 and sunset at 17:23 EET.

Sunshine

In Kerastaris, the average sunshine in December is 5.7h.

UV index

December is the month with the lowest UV index in Kerastaris, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

The high-temperature in Kerastaris during December is 12.1°C (53.8°F) and the low-temperature is 4.4°C (39.9°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 32°C (89.6°F).

In December, the average relative humidity in Kerastaris is 82%.

In Kerastaris, during December, the rain falls for 13.8 days and regularly aggregates up to 73mm (2.87") of precipitation.

In December, it is snowing for 2.8 days. Throughout December, 103mm (4.06") of snow is accumulated.

With an average of 9h and 36min of daylight, December has the shortest days of the year in Kerastaris.

In December, the average day length is 9h and 38min.

On the first day of December in Kerastaris, Greece, sunrise is at 07:27 and sunset at 17:13. On the last day of the month, sunrise is at 07:45 and sunset at 17:23 EET.

In Kerastaris, Greece, the average sunshine duration in December is 5.7h.

With an average maximum UV index of 2, December is the month with the lowest UV index in Kerastaris, Greece.

In December, the average daily maximum UV index in Kerastaris is 2. A UV Index of 2, and less, symbolizes a low health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Kerastaris, Greece

  • Average high temperature in December: 12.1°C

The warmest month (with the highest average high temperature) is July (30.9°C).
The month with the lowest average high temperature is January (10°C).

  • Average low temperature in December: 4.4°C

The month with the highest average low temperature is August (18.8°C).
The coldest month (with the lowest average low temperature) is January (3°C).

Average pressure in December
Kerastaris, Greece

  • Average pressure in December: 1018.3mbar

The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is July (1011.5mbar).

Average wind speed in December
Kerastaris, Greece

  • Average wind speed in December: 7.8km/h

The windiest month (with the highest average wind speed) is February (8.8km/h).
The calmest month (with the lowest average wind speed) is September (6.8km/h).

Average humidity in December
Kerastaris, Greece

  • Average humidity in December: 82%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (50%).

Average rainfall in December
Kerastaris, Greece

  • Average rainfall in December: 73mm

The wettest month (with the highest rainfall) is January (90mm).
The driest months (with the least rainfall) are July and August (23mm).

Average rainfall days in December
Kerastaris, Greece

  • Average rainfall days in December: 13.8 days

The months with the highest number of rainy days are January and March (15.3 days).
The months with the least rainy days are July and August (7.1 days).

Average snowfall in December
Kerastaris, Greece

  • Average snowfall in December: 103mm

The month with the highest snowfall is January (134mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Kerastaris, Greece

  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Kerastaris, Greece

  • Average daylight in December: 9h and 36min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 42min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in December
Kerastaris, Greece

  • Average sunshine days in December: 14.2 days

The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is February (9.9 days).

Average UV index in December
Kerastaris, Greece

  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in December
Kerastaris, Greece

  • Average cloud cover in December: 41

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).

Average visibility in December
Kerastaris, Greece

  • Average visibility in December: 8km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February and December (8km).