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December Weather in Athens, United States

Last updated: June 24, 2025

In December, the average temperature in Athens, United States hovers around 1°C (33°F), with minima dipping to -18°C (0°F) and maxima reaching 16°C (62°F). Expect approximately 91 mm (3.6 in) of precipitation over 11 days, contributing to an average humidity level of 84%. Embrace layered clothing and prepare for a cozy experience!

December Temperature in Athens

In December in Athens, the average temperature is 1°C (33°F), with maximums reaching up to 16°C (62°F) and minimums plunging as low as -18°C (0°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their stay.

December Weather in Athens: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Athens, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Athens, December typically has an average temperature of 1°C (33°F), with highs reaching up to 16°C (62°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec283137486069747366554133
Data source: Temperature data for Athens generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Athens

In Athens in December, the precipitation amount is 91 mm (3.6 in) over a period of 11 days.

December Precipitation Trends in Athens

The chart displays monthly precipitation patterns in Athens, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Athens, December typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6783761221037711696951319091
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Athens

In Athens in December humidity is 84%. With an average temperature of 1°C (33°F), this humidity feels like an icy blanket, making travel uncomfortable and breathless as the frigid air clings to your skin and dampens your clothes.

December Average Humidity in Athens

This chart illustrates the average monthly humidity levels in Athens, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Athens is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Athens

In Athens in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Athens, you can visit Hourly UV Index in Athens.

Maximum UV Index Levels in Athens for December

The chart shows the monthly maximum UV Index (UVI) for Athens in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Athens typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010997642
Data source: Athens December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Athens Compares to Other Months

Weather in Athens varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Athens, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Athens, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)67 mm (2.6 inches)89%moderate
February Weather0°C (31°F)83 mm (3.3 inches)88%moderate
March Weather3°C (37°F)76 mm (3.0 inches)86%high
April Weather9°C (49°F)122 mm (4.8 inches)84%very high
May Weather15°C (60°F)103 mm (4.0 inches)76%very high
June Weather20°C (69°F)77 mm (3.0 inches)72%very high
July Weather23°C (75°F)116 mm (4.6 inches)66%very high
August Weather23°C (73°F)96 mm (3.8 inches)64%very high
September Weather19°C (66°F)95 mm (3.7 inches)72%high
October Weather13°C (55°F)131 mm (5.2 inches)81%high
November Weather5°C (41°F)90 mm (3.6 inches)87%moderate
December Weather1°C (33°F)91 mm (3.6 inches)84%low

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