December Weather in Athens, United States

Last updated: June 24, 2025

In December, the average temperature in Athens, United States hovers around 0°C (33°F). Expect chilly nights with minimums dipping to -22°C (-8°F), while daytime highs can reach a mild 16°C (62°F). This month brings about 60 mm (2.4 in) of precipitation spread over 10 days, contributing to an average humidity of 86%. Prepare for a damp and brisk atmosphere!

December Temperature in Athens

In December in Athens, the average temperature is 0°C (33°F), with maximums reaching 16°C (62°F) and minimums dropping as low as -22°C (-8°F). Be prepared for a wide range of temperatures when planning your travel, and pack accordingly!

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 0°C (33°F), with highs reaching up to 16°C (62°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec272838476071757266543933
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 60 mm (2.4 in) accumulated over a period of 10 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 60 mm (2.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7175899714211512075861317760
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 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
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-3°C (27°F)71 mm (2.8 inches)85%moderate
February Weather-2°C (28°F)75 mm (2.9 inches)85%moderate
March Weather3°C (38°F)89 mm (3.5 inches)86%high
April Weather8°C (48°F)97 mm (3.8 inches)87%very high
May Weather16°C (61°F)142 mm (5.6 inches)81%very high
June Weather22°C (71°F)115 mm (4.5 inches)82%very high
July Weather24°C (75°F)120 mm (4.7 inches)81%very high
August Weather22°C (72°F)75 mm (3.0 inches)79%very high
September Weather19°C (66°F)86 mm (3.4 inches)78%very high
October Weather12°C (54°F)131 mm (5.2 inches)81%high
November Weather4°C (39°F)77 mm (3.0 inches)89%moderate
December Weather0°C (33°F)60 mm (2.4 inches)86%low

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