Athens
Greece
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Athens, Greece

The first month of the winter, December, is still a mild month in Athens, Greece, with average temperature ranging between min 9.3°C (48.7°F) and max 13.8°C (56.8°F).

Temperature

In Athens, the average high-temperature marginally drops, from a comfortable 18.1°C (64.6°F) in November, to a moderate 13.8°C (56.8°F). In December, the average low-temperature is 9.3°C (48.7°F).

Humidity

In Athens, the average relative humidity in December is 72%.

Rainfall

December is the month with the most rainfall. Rain falls for 11 days and accumulates 53mm (2.09") of precipitation.

Snowfall

In Athens snow does not fall in April through December.

Sea temperature

In Athens, the average water temperature is 16.6°C (61.9°F).
Note: For swimming, a surface water temperature of 16.6°C (61.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

December has the shortest days of the year in Athens, Greece, with an average of 9.6h of daylight.

Sunshine

In Athens, the average sunshine 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 low threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Athens?

In Athens, Greece, 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).

What is the average humidity in December in Athens?

In December, the average relative humidity in Athens is 72%.

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.

What is the wettest month in Athens?

December is the month with the most rainfall in Athens, Greece. Rain falls for 11 days and accumulates 53mm (2.09") of precipitation.

Does it snow in Athens in December?

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

When it does not snow in Athens?

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

How cold is the water in December in Athens?

In December, the average sea temperature in Athens 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?

With an average of 9.6h of daylight, December has the shortest days of the year in Athens, Greece.

How many hours of daylight does Athens have in December?

In December, the average length of the day in Athens is 9.6h.

How many hours of sunshine does Athens have in December?

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

What is the month with the lowest UV index in Athens?

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

What is the UV index reading in December in Athens?

In Athens, Greece, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.
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).

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%).

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).

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).

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

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

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).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 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 the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 5.8h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 5.6h).

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

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).