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September Weather in Attica, United States

Last updated: June 24, 2025

In September, the average temperature in Attica, United States stands at a pleasant 23°C (74°F). However, temperatures can vary significantly, with a minimum of 6°C (44°F) and soaring up to 38°C (100°F). This month also sees an average precipitation of 61 mm (2.4 in) spread over 6 days, while the average humidity rests at a comfortable 67%. Enjoy the mild climate!

September Temperature in Attica

In September in Attica, the average temperature is 23°C (74°F). The maximum can reach 38°C (100°F), while the minimum can drop as low as 6°C (44°F). This wide temperature range means that travelers should pack both cool and warmer clothing to be prepared for varying weather conditions.

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

The chart illustrates September temperature patterns in Attica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Attica, September typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (100°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec343649566778817974584639
Data source: Temperature data for Attica 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 Attica

In Attica in September, the total precipitation amount is 61 mm (2.4 in) spread over a period of 6 days.

September Precipitation Trends in Attica

The chart displays monthly precipitation patterns in Attica, 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 Attica, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec31237561150100496261912133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Attica

In Attica in September humidity is 67%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor exploration pleasant yet slightly sticky, perfect for leisurely strolls but requiring occasional breaks for hydration.

September Average Humidity in Attica

This chart illustrates the average monthly humidity levels in Attica, 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 Attica is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%67%70%82%82%81%76%67%72%80%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Attica

In Attica in September, 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 Attica.

Maximum UV Index Levels in Attica for September

The chart shows the monthly maximum UV Index (UVI) for Attica 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 Attica typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
Data source: Attica 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 Attica Compares to Other Months

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

This table compares monthly weather conditions in Attica, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)31 mm (1.2 inches)75%moderate
February Weather2°C (36°F)23 mm (0.9 inches)76%high
March Weather10°C (49°F)75 mm (2.9 inches)67%high
April Weather14°C (57°F)61 mm (2.4 inches)70%very high
May Weather19°C (67°F)150 mm (5.9 inches)82%very high
June Weather26°C (79°F)100 mm (3.9 inches)82%extreme
July Weather27°C (82°F)49 mm (1.9 inches)81%extreme
August Weather26°C (79°F)62 mm (2.4 inches)76%very high
September Weather23°C (74°F)61 mm (2.4 inches)67%very high
October Weather15°C (59°F)91 mm (3.6 inches)72%high
November Weather8°C (47°F)21 mm (0.8 inches)80%moderate
December Weather4°C (39°F)33 mm (1.3 inches)83%moderate

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