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September Weather in New Athens, United States

Last updated: June 24, 2025

In September, the average temperature in New Athens, United States is a pleasant 23°C (73°F). Expect a comfortable range, with minimums dipping to 8°C (46°F) and maximums soaring up to 35°C (95°F). However, be prepared for some rain—approximately 60 mm (2.3 in) over 7 days. With an average humidity of 76%, make sure to stay hydrated while enjoying the beautiful weather!

September Temperature in New Athens

In September in New Athens, the average temperature is 23°C (73°F), with maximums reaching 35°C (95°F) and minimums dropping to 8°C (46°F). This range makes New Athens an ideal destination for travelers seeking pleasant weather and a variety of outdoor activities.

September Weather in New Athens: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in New Athens, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Athens, September typically has an average temperature of 23°C (73°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec343748566877807773604540
Data source: Temperature data for New Athens 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 New Athens

In New Athens in September, the total precipitation amount is 60 mm (2.3 in) spread over a duration of 7 days.

September Precipitation Trends in New Athens

The chart displays monthly precipitation patterns in New Athens, 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 New Athens, September typically receives around 60 mm (2.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec81921371451588790114601127971
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Athens

In New Athens in September humidity is 76%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket, making outdoor activities feel more intense and prompting travelers to seek shade or cool breaks more frequently.

September Average Humidity in New Athens

This chart illustrates the average monthly humidity levels in New Athens, 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 New Athens is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in New Athens

In New Athens 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 New Athens.

Maximum UV Index Levels in New Athens for September

The chart shows the monthly maximum UV Index (UVI) for New Athens 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 New Athens typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109753
Data source: New Athens 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 New Athens Compares to Other Months

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

This table compares monthly weather conditions in New Athens, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)81 mm (3.2 inches)82%moderate
February Weather3°C (37°F)92 mm (3.6 inches)80%moderate
March Weather9°C (48°F)136 mm (5.4 inches)80%high
April Weather13°C (56°F)145 mm (5.7 inches)80%very high
May Weather20°C (68°F)158 mm (6.2 inches)82%very high
June Weather25°C (77°F)87 mm (3.4 inches)83%extreme
July Weather27°C (80°F)89 mm (3.5 inches)81%very high
August Weather25°C (77°F)114 mm (4.5 inches)80%very high
September Weather23°C (73°F)60 mm (2.3 inches)76%very high
October Weather16°C (60°F)112 mm (4.4 inches)76%high
November Weather7°C (45°F)79 mm (3.1 inches)85%moderate
December Weather5°C (40°F)71 mm (2.8 inches)86%moderate

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