May Weather in Kythnos, Greece

Last updated: August 23, 2025

In May, the average temperature in Kythnos, Greece is a pleasant 19°C (66°F). Expect a comfortable range, with minimums dipping to 15°C (59°F) and maximums reaching up to 23°C (74°F). While you enjoy the mild weather, be prepared for some light rain, with precipitation totaling 8 mm (0.3 in) over 2 days. The average humidity sits at 77%, making for a refreshing atmosphere.

May Temperature in Kythnos

In May in Kythnos, the average temperature is 19°C (66°F). The maximum can reach 23°C (74°F), while the minimum can be as low as 15°C (59°F). This mild climate makes Kythnos an ideal destination for travelers seeking pleasant weather during this time.

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

The chart illustrates May temperature patterns in Kythnos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kythnos, May typically has an average temperature of 19°C (66°F), with highs reaching up to 23°C (74°F) and lows dropping to around 15°C (59°F).

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

May Precipitation in Kythnos

In Kythnos in May, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

May Precipitation Trends in Kythnos

The chart displays monthly precipitation patterns in Kythnos, 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 Kythnos, May typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Kythnos

In Kythnos in May, humidity is 77%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket wrapping around you, making the air feel thick and sticky, which can be quite uncomfortable for traveling.

May Average Humidity in Kythnos

This chart illustrates the average monthly humidity levels in Kythnos, 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 Kythnos is approximately 77%, 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 Kythnos

In Kythnos in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Kythnos.

Maximum UV Index Levels in Kythnos for May

The chart shows the monthly maximum UV Index (UVI) for Kythnos 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 Kythnos typically reaches 9, which falls under the very high exposure category.

Data source: Kythnos 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 Kythnos Compares to Other Months

Weather in Kythnos varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Kythnos, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kythnos, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (55°F)	86 mm (3.4 inches)	76%	moderate
February Weather	13°C (56°F)	53 mm (2.1 inches)	75%	moderate
March Weather	14°C (57°F)	36 mm (1.4 inches)	74%	high
April Weather	15°C (60°F)	18 mm (0.7 inches)	75%	very high
May Weather	19°C (66°F)	8 mm (0.3 inches)	77%	very high
June Weather	23°C (73°F)	5 mm (0.2 inches)	71%	very high
July Weather	25°C (78°F)	1 mm (0.0 inches)	68%	very high
August Weather	26°C (79°F)	1 mm (0.0 inches)	63%	very high
September Weather	24°C (75°F)	10 mm (0.4 inches)	65%	very high
October Weather	21°C (69°F)	24 mm (0.9 inches)	72%	high
November Weather	18°C (64°F)	50 mm (2.0 inches)	75%	moderate
December Weather	15°C (59°F)	92 mm (3.6 inches)	76%	moderate