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December Weather in Athens, United States

Last updated: June 24, 2025

In Athens, United States, the average temperature in December hovers around 9°C (48°F). Expect a chilly minimum of -5°C (23°F) and a pleasant maximum of 22°C (72°F). During this month, you can anticipate 147 mm (5.8 in) of precipitation spread over 11 days, with an average humidity level of 88%.

December Temperature in Athens

In December in Athens, the average temperature is 9°C (48°F), with maximums reaching 22°C (72°F) and minimums dipping as low as -5°C (23°F). It's a great time for outdoor activities, so be sure to pack layers for varying conditions during your travels!

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 9°C (48°F), with highs reaching up to 22°C (72°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec444956627278818076665148
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 total precipitation amount is 147 mm (5.8 in), occurring over the course 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 147 mm (5.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec11317718314410213210611510711275147
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 88%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill settling into your bones, making outdoor exploration feel heavy and oppressive.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Athens for better planning.

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 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109754
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 Weather7°C (44°F)113 mm (4.5 inches)87%moderate
February Weather9°C (49°F)177 mm (7.0 inches)87%high
March Weather13°C (56°F)183 mm (7.2 inches)85%very high
April Weather17°C (62°F)144 mm (5.7 inches)82%very high
May Weather22°C (72°F)102 mm (4.0 inches)83%extreme
June Weather25°C (78°F)132 mm (5.2 inches)82%extreme
July Weather27°C (81°F)106 mm (4.2 inches)78%extreme
August Weather27°C (80°F)115 mm (4.5 inches)67%very high
September Weather24°C (76°F)107 mm (4.2 inches)64%very high
October Weather19°C (66°F)112 mm (4.4 inches)74%high
November Weather11°C (52°F)75 mm (3.0 inches)87%moderate
December Weather9°C (48°F)147 mm (5.8 inches)88%moderate

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