December weather forecast
Potamia, Greece

December

Weather in December

The first month of the winter, December, is still a cool month in Potamia, Greece, with an average temperature fluctuating between 8°C (46.4°F) and 11.3°C (52.3°F).

Temperature

December's arrival subtly correlates with a reduction in the average high-temperature, down from a refreshing 15.3°C (59.5°F) in November to a fresh 11.3°C (52.3°F). The temperature during December sees a subtle transition from day to night, averaging a low of 8°C (46.4°F).

Humidity

In Potamia, the average relative humidity in December is 71%.

Rainfall

In Potamia, in December, during 11.7 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, there are 121.2 rainfall days, and 389mm (15.31") of precipitation is accumulated.

Snowfall

January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. In Potamia, during the entire year, snow falls for 3 days and aggregates up to 22mm (0.87") of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 07:26 and sunset at 16:54. On the last day of the month, sunrise is at 07:44 and sunset at 17:03 EET.

Sunshine

January and December, with an average of 5.8h of sunshine, are months with the least sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

What is the usual temperature for Potamia in December?
An average high-temperature, in December, in Potamia, is 11.3°C (52.3°F) and the average low-temperature is 8°C (46.4°F). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 29°C (84.2°F).
What is the average humidity in December?
In December, the average relative humidity is 71%.
How many days does it rain in December?
In Potamia, in December, during 11.7 rainfall days, 44mm (1.73") of precipitation is typically accumulated.
When does it start to snow?
December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow.
What is the month with the shortest days?
December has the shortest days of the year in Potamia, Greece, with an average of 9h and 18min of daylight.
How many hours of daylight does Potamia have in December?
In Potamia, the average day length in December is 9h and 19min.
What time are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 07:26 and sunset at 16:54. On the last day of the month, sunrise is at 07:44 and sunset at 17:03 EET.
What is the month with the least sunshine?
The months with the least sunshine are January and December, with an average of 5.8h of sunshine.
How long on average sun shines in December?
In December, the average sunshine duration in Potamia is 5.8h.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 2.
What is the UV index reading in December?
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Potamia, Greece
  • Average high temperature in December: 11.3°C

The warmest month (with the highest average high temperature) is August (28.1°C).
The month with the lowest average high temperature is January (9.4°C).

  • Average low temperature in December: 8°C

The month with the highest average low temperature is August (23.2°C).
The coldest month (with the lowest average low temperature) is January (6.2°C).

Average pressure in December
Potamia, Greece
  • Average pressure in December: 1019.4mbar

The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is July (1012.2mbar).

Average wind speed in December
Potamia, Greece
  • Average wind speed in December: 15km/h

The windiest month (with the highest average wind speed) is February (16.8km/h).
The calmest month (with the lowest average wind speed) is June (11km/h).

Average humidity in December
Potamia, Greece
  • Average humidity in December: 71%

The months with the highest relative humidity are February, March and November (73%).
The month with the lowest relative humidity is August (59%).

Average rainfall in December
Potamia, Greece
  • Average rainfall in December: 44mm

The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is August (9mm).

Average rainfall days in December
Potamia, Greece
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (4.3 days).

Average snowfall in December
Potamia, Greece
  • Average snowfall in December: 1mm

The month with the highest snowfall is January (17mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Potamia, Greece
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Potamia, Greece
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).

Average sunshine days in December
Potamia, Greece
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is August (25 days).
The month with the least sunshine days is June (13.3 days).

Average UV index in December
Potamia, 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
Potamia, Greece
  • Average cloud cover in December: 38

The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 11).

Average visibility in December
Potamia, 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).

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