December Weather in Kythnos, Greece

Last updated: August 23, 2025

In December, the average temperature in Kythnos, Greece hovers around 15°C (59°F), offering a pleasant climate. Expect minimums as low as 8°C (47°F) and highs reaching 20°C (69°F). This month also brings about 92 mm (3.6 in) of precipitation over 11 days, contributing to an average humidity of 76%. Whether you’re exploring the outdoors or enjoying cozy indoor activities, be prepared for a delightful mix of weather!

December Temperature in Kythnos

In December in Kythnos, the average temperature is 15°C (59°F). Maximum temperatures can reach 20°C (69°F), while minimums can dip as low as 8°C (47°F). This mild climate makes it an ideal time for outdoor activities and exploring the local sights.

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

The chart illustrates December 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, December typically has an average temperature of 15°C (59°F), with highs reaching up to 20°C (69°F) and lows dropping to around 8°C (47°F).

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

December Precipitation in Kythnos

In Kythnos in December, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

December Precipitation Trends in Kythnos

The chart displays monthly precipitation patterns in Kythnos, 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 Kythnos, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Kythnos

In Kythnos in December humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.

December Average Humidity in Kythnos

This chart illustrates the average monthly humidity levels in Kythnos, 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 Kythnos is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kythnos

In Kythnos in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Kythnos, you can check the information here.

Maximum UV Index Levels in Kythnos for December

The chart shows the monthly maximum UV Index (UVI) for Kythnos 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 Kythnos typically reaches 3, which falls under the moderate exposure category.

Data source: Kythnos 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 Kythnos Compares to Other Months

Weather in Kythnos varies notably across the year, with each month offering distinct climate conditions. This page compares December’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 December’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