September Weather in Sterna, Greece

Last updated: August 23, 2025

In September, the average temperature in Sterna, Greece hovers around 22°C (73°F), providing a comfortable climate. However, be prepared for a range, as temperatures can dip to a brisk 7°C (45°F) or rise to a scorching 36°C (97°F). With an average humidity of 57% and 17 mm (0.7 in) of precipitation spread over just 3 days, it's advisable to pack accordingly for both sun and occasional showers.

September Temperature in Sterna

In September in Sterna, the average temperature is 22°C (73°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 7°C (45°F). This makes it an ideal time for travelers seeking warm days and cool evenings.

September Weather in Sterna: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sterna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sterna, September typically has an average temperature of 22°C (73°F), with highs reaching up to 36°C (97°F) and lows dropping to around 7°C (45°F).

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

September Precipitation in Sterna

In Sterna in September, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

September Precipitation Trends in Sterna

The chart displays monthly precipitation patterns in Sterna, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Sterna, September typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Sterna

In Sterna in September humidity is 57%. With an average temperature of 22°C (73°F), this humidity feels like a warm embrace, making it perfect for leisurely exploration and outdoor activities, though travelers may want to stay hydrated and take breaks in shaded areas.

September Average Humidity in Sterna

This chart illustrates the average monthly humidity levels in Sterna, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Sterna is approximately 57%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Sterna

In Sterna in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Sterna.

Maximum UV Index Levels in Sterna for September

The chart shows the monthly maximum UV Index (UVI) for Sterna in September, 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 September, the maximum UV index in Sterna typically reaches 7, which falls under the high exposure category.

Data source: Sterna September 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 September Weather in Sterna Compares to Other Months

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

This table compares monthly weather conditions in Sterna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	72 mm (2.8 inches)	87%	low
February Weather	7°C (45°F)	58 mm (2.3 inches)	84%	moderate
March Weather	9°C (48°F)	64 mm (2.5 inches)	81%	high
April Weather	13°C (56°F)	54 mm (2.1 inches)	72%	high
May Weather	19°C (66°F)	45 mm (1.8 inches)	74%	very high
June Weather	23°C (74°F)	71 mm (2.8 inches)	65%	very high
July Weather	26°C (80°F)	36 mm (1.4 inches)	59%	very high
August Weather	27°C (81°F)	10 mm (0.4 inches)	49%	very high
September Weather	22°C (73°F)	17 mm (0.7 inches)	57%	high
October Weather	16°C (61°F)	89 mm (3.5 inches)	76%	high
November Weather	11°C (53°F)	54 mm (2.1 inches)	84%	moderate
December Weather	7°C (46°F)	96 mm (3.8 inches)	86%	low