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September Weather in Grevena, Greece

Last updated: August 23, 2025

In September, the average temperature in Grevena, Greece hovers around 20°C (68°F). Expect a bit of variety, with minimums dropping to 6°C (42°F) and maximums peaking at 35°C (95°F). Additionally, you'll encounter about 20 mm (0.8 in) of precipitation spread over roughly 4 days, with an average humidity level of 56%.

September Temperature in Grevena

In September in Grevena, the average temperature is 20°C (68°F). Maximums can reach up to 35°C (95°F) and minimums can drop as low as 6°C (42°F). This variation in temperature makes it ideal for travelers to pack layers for both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Grevena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grevena, September typically has an average temperature of 20°C (68°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec364145536270767668574941
Data source: Temperature data for Grevena generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Grevena

In Grevena in September, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

September Precipitation Trends in Grevena

The chart displays monthly precipitation patterns in Grevena, 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 Grevena, September typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec81817155546442282059102106
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Grevena

In Grevena in September humidity is 56%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making traveling enjoyable yet slightly sticky, as the air wraps around you, urging you to hydrate often and seek out refreshing spots along your journey.

September Average Humidity in Grevena

This chart illustrates the average monthly humidity levels in Grevena, 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 Grevena is approximately 56%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%76%70%72%60%56%47%56%70%80%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Grevena

In Grevena in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Grevena.

Maximum UV Index Levels in Grevena for September

The chart shows the monthly maximum UV Index (UVI) for Grevena 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 Grevena typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101110108643
Data source: Grevena 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 Grevena Compares to Other Months

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

This table compares monthly weather conditions in Grevena, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)80 mm (3.2 inches)84%moderate
February Weather5°C (42°F)81 mm (3.2 inches)78%moderate
March Weather7°C (46°F)71 mm (2.8 inches)75%high
April Weather12°C (53°F)55 mm (2.2 inches)70%very high
May Weather17°C (63°F)54 mm (2.1 inches)72%very high
June Weather21°C (70°F)64 mm (2.5 inches)60%extreme
July Weather24°C (76°F)42 mm (1.7 inches)56%very high
August Weather24°C (76°F)28 mm (1.1 inches)47%very high
September Weather20°C (68°F)20 mm (0.8 inches)56%very high
October Weather14°C (57°F)59 mm (2.3 inches)70%high
November Weather9°C (49°F)102 mm (4.0 inches)80%moderate
December Weather5°C (41°F)106 mm (4.2 inches)83%moderate

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