December weather forecast
Athens, Greece

englishespañol中文
Share
The ancient city of Athens in Greece with a view of the Parthenon Temple
The ancient city of Athens in Greece with a view of the Parthenon Temple

Weather in December

December marks the year-end with increasing humidity levels and temperature lows of around 9.3°C (48.7°F). Christmas festivities enliven the atmosphere. With rain peaking at 53mm (2.09"), the city experiences its wettest month. The sea temperature finally capitulates to the winter chill. Snuggled in winter wear, locals and tourists alike, witness the New Year's fireworks under the cold Athenian sky.

Temperature

Athens's progression into December involves a gentle drop in the average high-temperature, from an enjoyable 18.1°C (64.6°F) in November to a still refreshing 13.8°C (56.8°F). The nighttime temperature in December experiences a minor dip, averaging a chilly 9.3°C (48.7°F).

Humidity

The average relative humidity in December is 72%.

Rainfall

The month with the most rainfall is December, when the rain falls for 11 days and typically aggregates up to 53mm (2.09") of precipitation.

Snowfall

In Athens, snow does not fall in April through December.

Sea temperature

In December, the average sea temperature is 16.6°C (61.9°F).
Note: Swimming in 16.6°C (61.9°F) is not pleasurable for most people. Breathing control grows increasingly challenging as the water temperature falls under 21°C (69.8°F).

Daylight

December has the shortest days of the year in Athens, Greece, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 07:22 and sunset at 17:05. On the last day of the month, sunrise is at 07:40 and sunset at 17:15 EET.

Sunshine

In Athens, the average sunshine in December is 5.8h.

UV index

December is the month with the lowest UV index in Athens, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 2 during December leads to these advisories:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Jan 24, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

What are the temperatures in Athens in December?

In Athens, in December, the average high-temperature is 13.8°C (56.8°F), and the average low-temperature is 9.3°C (48.7°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 28°C (82.4°F).

What is the average humidity in December in Athens?

The average relative humidity in December in Athens is 72%.

What is the rainiest month in Athens?

The month with the most rainfall is December, when the rain falls for 11 days and typically aggregates up to 53mm (2.09") of precipitation.

How much does it rain in Athens in December?

In Athens, in December, during 11 rainfall days, 53mm (2.09") of precipitation is typically accumulated.

When it does not snow in Athens?

In Athens, snow does not fall in April through December.

Does it snow in Athens in December?

In Athens, in December, it doesn't snow. In January, it regularly snows.

How cold is the water in December in Athens?

In December, the average sea temperature in Athens, Greece, is 16.6°C (61.9°F). For most, swimming in 16.6°C (61.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the month with the shortest days in Athens?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

What is the average length of the day in December in Athens?

The average day length in December in Athens is 9h and 35min.

When is the sunrise / sunset in December in Athens?

In December, on the first day of the month, sunrise is at 07:22 and sunset at 17:05. On the last day of the month, in Athens, Greece, sunrise is at 07:40 and sunset at 17:15 EET.

How long on average sun shines in December in Athens?

The average sunshine duration in December in Athens is 5.8h.

When is the lowest UV index in Athens?

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

What is the UV index reading in December in Athens?

The average daily maximum UV index in December in Athens is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
Athens, Greece

Average temperature in December - Athens, Greece
  • Average high temperature in December: 13.8°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (12.1°C).

  • Average low temperature in December: 9.3°C

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (7.3°C).

[Resources]

Average pressure in December
Athens, Greece

Average pressure in December - Athens, 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 (1011.1mbar).

[Resources]

Average wind speed in December
Athens, Greece

Average wind speed in December - Athens, Greece
  • Average wind speed in December: 14.5km/h

The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is May (11.6km/h).

[Resources]

Average humidity in December
Athens, Greece

Average humidity in December - Athens, Greece
  • Average humidity in December: 72%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (50%).

[Resources]

Average rainfall in December
Athens, Greece

Average rainfall in December - Athens, Greece
  • Average rainfall in December: 53mm

The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is August (4mm).

[Resources]

Average rainfall days in December
Athens, Greece

Average rainfall days in December - Athens, Greece
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is January (11.3 days).
The month with the least rainy days is August (1.8 days).

[Resources]

Average snowfall in December
Athens, Greece

Average snowfall in December - Athens, Greece
  • Average snowfall in December: 0mm

The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

[Resources]

Average snowfall days in December
Athens, Greece

Average snowfall days in December - Athens, Greece
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

[Resources]

Average sea temperature in December
Athens, Greece

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).

[Resources]

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

Average daylight in December / Average sunshine in December - Athens, Greece
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

[Resources]

Average sunshine days in December
Athens, Greece

Average sunshine days in December - Athens, Greece
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is February (14.1 days).

[Resources]

Average UV index in December
Athens, Greece

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

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

[Resources]

Average cloud cover in December
Athens, Greece

Average cloud cover in December - Athens, Greece
  • Average cloud cover in December: 36

The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 6).

[Resources]

Average visibility in December
Athens, Greece

Average visibility in December - Athens, 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).

[Resources]

Athens, Greece

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location