December weather forecast and climate
Athens, Greece

The ancient city of Athens in Greece with a view of the Parthenon Temple at dusk
The ancient city of Athens in Greece with a view of the Parthenon Temple at dusk
As expected, December is one of the coldest months in Greece's capital, yet compared to many other European countries is still relatively mild, making it a good place for a little winter sun.
The average temperature in December is 12°C (53.6°F), with a few fair, cloudy days accompanying the colder temperatures. Towards the end of the month, although temperatures drop further, the skies brighten slightly,
December, on average, sees 11 days of rainfall, making it the month when it is most likely to see some rain. The sea temperature is at 17°C (62.6°F) - only a very few ventures into the water at this time of year. Although the humidity levels are the highest of the year (75%), this is barely noticeable with the cooler temperatures.

What is the temperature in December in Athens?

In December, in Athens, the average high-temperature is 14.7°C (58.5°F), and the average low-temperature is 8.8°C (47.8°F).

How much does it rain in Athens in December?

In Athens, Greece, in December, during 12.1 rainfall days, typically, 69.1mm (2.7") of precipitation is accumulated.

What is the rainiest month in Athens?

December is the month with the most rainfall in Athens, Greece. Rain falls for 12.1 days and accumulates 69.1mm (2.7") of precipitation.

How cold is the water in December in Athens?

In December, in Athens, Greece, the average sea temperature is 16.6°C (61.9°F). Swimming in 16.6°C (61.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
Average temperature in December - Athens, Greece
  • Average high temperature in December: 14.7°C

The warmest month (with the highest average high temperature) is August (33.7°C).
The month with the lowest average high temperature is January (13.3°C).

  • Average low temperature in December: 8.8°C

The month with the highest average low temperature is August (23.8°C).
Coldest months (with the lowest average low temperature) are January and February (6.8°C).

Average humidity in December - Athens, Greece
  • Average humidity in December: 71.8%

The month with the highest relative humidity is November (71.9%).
The month with the lowest relative humidity is August (47.6%).

Average rainfall in December - Athens, Greece
  • Average rainfall in December: 69.1mm

The wettest month (with the highest rainfall) is December (69.1mm).
The driest month (with the lowest rainfall) is July (5.8mm).

Average rainfall days in December - Athens, Greece
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is January (12.6 days).
The month with the lowest number of rainy days is August (1.7 days).

Average sea temperature in December - Athens, Greece
  • Average sea temperature in December: 16.6°C

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15°C).

Average daylight in December / Average sunshine in December - Athens, Greece
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 3.4h

The month with most sunshine is July (Average sunshine: 12.4h).
The month with least sunshine is December (Average sunshine: 3.4h).

Average UV index in December - Athens, Greece
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).

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