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May Weather in Athens, United States

Last updated: June 24, 2025

In May, the average temperature in Athens, United States is a pleasant 18°C (65°F). However, temperatures can fluctuate, with a minimum of 0°C (33°F) and reaching up to 32°C (90°F). Be prepared for a good amount of rainfall, as 142 mm (5.6 in) is expected over 16 days. Additionally, the average humidity sits at a tropical 82%, adding to the area's distinctive climate.

May Temperature in Athens

In May, in Athens, the average temperature is 18°C (65°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 0°C (33°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates May 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, May typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec343845546572777570594439
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.

May Precipitation in Athens

In Athens in May, the precipitation amount is 142 mm (5.6 in) distributed over 16 days.

May Precipitation Trends in Athens

The chart displays monthly precipitation patterns in Athens, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Athens, May typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec8912511614014214811112410310783116
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Athens

In Athens in May, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

May Average Humidity in Athens

This chart illustrates the average monthly humidity levels in Athens, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Athens is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Athens

In Athens in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Athens.

Maximum UV Index Levels in Athens for May

The chart shows the monthly maximum UV Index (UVI) for Athens in May, 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 May, the maximum UV index in Athens typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098653
Data source: Athens May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)89 mm (3.5 inches)88%moderate
February Weather3°C (38°F)125 mm (4.9 inches)88%moderate
March Weather7°C (45°F)116 mm (4.5 inches)88%high
April Weather12°C (54°F)140 mm (5.5 inches)86%very high
May Weather18°C (65°F)142 mm (5.6 inches)82%very high
June Weather22°C (72°F)148 mm (5.8 inches)84%very high
July Weather25°C (77°F)111 mm (4.4 inches)82%very high
August Weather24°C (75°F)124 mm (4.9 inches)73%very high
September Weather21°C (70°F)103 mm (4.0 inches)73%very high
October Weather15°C (60°F)107 mm (4.2 inches)81%high
November Weather7°C (44°F)83 mm (3.3 inches)89%moderate
December Weather4°C (39°F)116 mm (4.6 inches)86%moderate

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