December weather forecastArna, Greece

December

Weather in December

The first month of the winter, December, is still a refreshing month in Arna, Greece, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 14.3°C (57.7°F).

Temperature

Arna's December weather features a light decline in high-temperatures, reducing from a comfortable 18.3°C (64.9°F) in November to a mild 14.3°C (57.7°F). December records a small disparity from daytime temperatures, marking an average low-temperature of 9.7°C (49.5°F) in Arna.

Humidity

In December, the average relative humidity in Arna is 74%.

Rainfall

In December, the rain falls for 12 days. Throughout December, 47mm (1.85") of precipitation is accumulated. Throughout the year, in Arna, there are 127.6 rainfall days, and 401mm (15.79") of precipitation is accumulated.

Daylight

The month with the shortest days in Arna, Greece, is December, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 07:24 and sunset at 17:14. On the last day of December, sunrise is at 07:43 and sunset at 17:23 EET.

Sunshine

In Arna, the average sunshine in December is 6.4h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Arna, Greece. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 3 during December leads to these advisories:
Exercise prevention - Warding off sunburn is urged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

The average high-temperature, in December, in Arna, is 14.3°C (57.7°F), while the average low-temperature is 9.7°C (49.5°F). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 33°C (91.4°F).

In December, the average relative humidity in Arna, Greece, is 74%.

In Arna, Greece, in December, during 12 rainfall days, 47mm (1.85") of precipitation is typically accumulated.

December has the shortest days of the year in Arna, with an average of 9h and 42min of daylight.

In Arna, Greece, the average day length in December is 9h and 41min.

On the first day of December in Arna, Greece, sunrise is at 07:24 and sunset at 17:14. On the last day of the month, sunrise is at 07:43 and sunset at 17:23 EET.

The average sunshine duration in December is 6.4h.

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

In Arna, Greece, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Arna, Greece

  • Average high temperature in December: 14.3°C

The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (12.3°C).

  • Average low temperature in December: 9.7°C

The month with the highest average low temperature is August (23°C).
The coldest month (with the lowest average low temperature) is January (8°C).

Average pressure in December
Arna, Greece

  • Average pressure in December: 1018.2mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.4mbar).

Average wind speed in December
Arna, Greece

  • Average wind speed in December: 13.5km/h

The windiest month (with the highest average wind speed) is February (15.2km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

Average humidity in December
Arna, Greece

  • Average humidity in December: 74%

The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (57%).

Average rainfall in December
Arna, Greece

  • Average rainfall in December: 47mm

The wettest month (with the highest rainfall) is January (58mm).
The driest month (with the least rainfall) is July (12mm).

Average rainfall days in December
Arna, Greece

  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is January (14.2 days).
The month with the least rainy days is July (5.6 days).

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

  • Average daylight in December: 9h and 42min

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

  • Average sunshine in December: 6h and 24min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).

Average sunshine days in December
Arna, Greece

  • Average sunshine days in December: 16.7 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.6 days).

Average UV index in December
Arna, Greece

  • Average UV index in December: 3

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 3).

Average cloud cover in December
Arna, Greece

  • Average cloud cover in December: 31

The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 8).

Average visibility in December
Arna, Greece

  • Average visibility in December: 10km

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