nomadseason

January Weather in Athens, United States

Last updated: June 24, 2025

In January, the average temperature in Athens, United States hovers around -9°C (17°F). Expect chilly conditions where temperatures can plunge to a minimum of -32°C (-26°F), yet may occasionally peak at a milder 7°C (45°F). During this time, precipitation accumulates to about 34 mm (1.3 in) over approximately 6 days, while humidity remains notably high at 88%.

January Temperature in Athens

In January in Athens, the average temperature is -9°C (17°F). Maximum temperatures can reach 7°C (45°F), while minimums can drop as low as -32°C (-26°F). Be sure to pack warm clothing and prepare for significant temperature fluctuations during your travels.

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

The chart illustrates January 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, January typically has an average temperature of -9°C (17°F), with highs reaching up to 7°C (45°F) and lows dropping to around -32°C (-26°F).
JanFebMarAprMayJunJulAugSepOctNovDec161731415667716761463223
Data source: Temperature data for Athens generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Athens

In Athens in January, the total precipitation amount is 34 mm (1.3 in) spread over 6 days.

January Precipitation Trends in Athens

The chart displays monthly precipitation patterns in Athens, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Athens, January typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec34515399114105126131881145053
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Athens

In Athens in January, humidity is 88%. With an average temperature of -9°C (17°F), this humidity feels like an oppressive chill that seeps into your bones, making outdoor activities uncomfortable and adding an extra layer of difficulty to travel plans.

January Average Humidity in Athens

This chart illustrates the average monthly humidity levels in Athens, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Athens is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Athens

In Athens in January, 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 January

The chart shows the monthly maximum UV Index (UVI) for Athens in January, 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 January, the maximum UV index in Athens typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810997532
Data source: Athens January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)34 mm (1.3 inches)88%low
February Weather-9°C (17°F)51 mm (2.0 inches)89%moderate
March Weather-1°C (31°F)53 mm (2.1 inches)86%moderate
April Weather5°C (42°F)99 mm (3.9 inches)85%high
May Weather14°C (57°F)114 mm (4.5 inches)79%very high
June Weather19°C (67°F)105 mm (4.1 inches)80%very high
July Weather22°C (71°F)126 mm (5.0 inches)80%very high
August Weather19°C (67°F)131 mm (5.1 inches)78%very high
September Weather16°C (61°F)88 mm (3.5 inches)80%high
October Weather8°C (47°F)114 mm (4.5 inches)84%moderate
November Weather0°C (32°F)50 mm (2.0 inches)89%moderate
December Weather-5°C (23°F)52 mm (2.1 inches)85%low

Compare Athens's Climate with Cities Worldwide