January Weather in Penteli, Greece

Last updated: August 23, 2025

In January, the average temperature in Penteli, Greece hovers around 9°C (48°F). While you might experience a brisk minimum of -4°C (25°F), don't be surprised by those pleasant peaks reaching up to 22°C (72°F). With 57 mm (2.2 in) of precipitation spread over 7 days and an average humidity of 76%, prepare for a mix of chilly and damp days, perfect for cozy indoor activities!

January Temperature in Penteli

In January in Penteli, the average temperature is 9°C (48°F), with maximums reaching up to 22°C (72°F) and minimums dropping as low as -4°C (25°F). Pack layers to ensure comfort during your travels, as temperatures can vary significantly throughout the day.

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

The chart illustrates January temperature patterns in Penteli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Penteli, January typically has an average temperature of 9°C (48°F), with highs reaching up to 22°C (72°F) and lows dropping to around -4°C (25°F).

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

January Precipitation in Penteli

In Penteli in January, the precipitation amount is 57 mm (2.2 in) over the course of 7 days.

January Precipitation Trends in Penteli

The chart displays monthly precipitation patterns in Penteli, 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 Penteli, January typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Penteli

In Penteli in January humidity is 76%. With an average temperature of 9°C (48°F), this humidity feels like a chilly embrace, making outdoor activities feel damp and brisk, potentially leaving you feeling colder than the temperature suggests.

January Average Humidity in Penteli

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

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

January UV Index in Penteli

In Penteli in January, 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 Penteli, you can check the information here.

Maximum UV Index Levels in Penteli for January

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

Data source: Penteli 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 Penteli Compares to Other Months

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

This table compares monthly weather conditions in Penteli, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	57 mm (2.2 inches)	76%	moderate
February Weather	10°C (51°F)	48 mm (1.9 inches)	75%	moderate
March Weather	12°C (54°F)	39 mm (1.5 inches)	74%	high
April Weather	15°C (60°F)	42 mm (1.6 inches)	75%	very high
May Weather	21°C (70°F)	23 mm (0.9 inches)	77%	very high
June Weather	25°C (77°F)	33 mm (1.3 inches)	71%	very high
July Weather	28°C (83°F)	9 mm (0.4 inches)	68%	very high
August Weather	28°C (83°F)	4 mm (0.2 inches)	63%	very high
September Weather	24°C (76°F)	17 mm (0.7 inches)	65%	very high
October Weather	19°C (66°F)	30 mm (1.2 inches)	72%	high
November Weather	15°C (59°F)	48 mm (1.9 inches)	75%	moderate
December Weather	11°C (53°F)	66 mm (2.6 inches)	76%	moderate