May Weather in Athens, United States

Last updated: June 24, 2025

In May, the average temperature in Athens, United States hovers around 21°C (70°F), with a minimum of 3°C (38°F) and a maximum peak of 33°C (92°F). Expect about 118 mm (4.7 in) of precipitation spread across 12 days, and prepare for a high average humidity of 85%.

May Temperature in Athens

In May in Athens, the average temperature is 21°C (70°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 3°C (38°F). This makes it a great time for travelers to enjoy a mix of warm days and cooler nights, perfect for exploring the outdoors or relaxing in comfortable weather.

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 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Athens generated using information from the Copernicus Climate Change Service.

May Precipitation in Athens

In Athens in May, the total precipitation amount is 118 mm (4.7 in) over the course of 12 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 118 mm (4.7 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Athens

In Athens in May, humidity is 85%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel slightly stifling and requiring frequent breaks to refresh in the shade or near water.

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 85%, offering insight into how humid the weather typically is during this month.

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 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	98 mm (3.9 inches)	86%	moderate
February Weather	9°C (48°F)	175 mm (6.9 inches)	86%	high
March Weather	12°C (54°F)	162 mm (6.4 inches)	86%	very high
April Weather	16°C (61°F)	147 mm (5.8 inches)	82%	very high
May Weather	21°C (70°F)	118 mm (4.7 inches)	85%	extreme
June Weather	24°C (76°F)	108 mm (4.3 inches)	85%	extreme
July Weather	26°C (80°F)	107 mm (4.2 inches)	83%	extreme
August Weather	25°C (78°F)	125 mm (4.9 inches)	76%	very high
September Weather	23°C (74°F)	95 mm (3.7 inches)	76%	very high
October Weather	18°C (65°F)	123 mm (4.9 inches)	80%	high
November Weather	10°C (50°F)	83 mm (3.3 inches)	88%	moderate
December Weather	8°C (46°F)	137 mm (5.4 inches)	88%	moderate