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September Weather in Palmyra, United States

Last updated: June 24, 2025

In Palmyra, United States, the average temperature in September hovers around 20°C (68°F), with a comfortable minimum of 3°C (38°F) and a peak of 34°C (94°F). Expect a precipitation amount of 116 mm (4.6 in) spread over about 10 days, contributing to a humidity level of 80%. This mix of temperatures and moisture creates a unique atmosphere perfect for experiencing the charm of the season!

September Temperature in Palmyra

In September in Palmyra, the average temperature is 20°C (68°F). Maximum temperatures can reach 34°C (94°F), while minimums can dip as low as 3°C (38°F). Overall, it's an ideal time for travelers to enjoy a mix of warm days and cool nights in Palmyra.

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

The chart illustrates September temperature patterns in Palmyra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palmyra, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec232639496273767368543832
Data source: Temperature data for Palmyra 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 Palmyra

In Palmyra in September, the total precipitation amount is 116 mm (4.6 in) over a span of 10 days.

September Precipitation Trends in Palmyra

The chart displays monthly precipitation patterns in Palmyra, 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 Palmyra, September typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec616085113165135100711161175350
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Palmyra

In Palmyra in September, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

September Average Humidity in Palmyra

This chart illustrates the average monthly humidity levels in Palmyra, 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 Palmyra is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Palmyra

In Palmyra 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 Palmyra.

Maximum UV Index Levels in Palmyra for September

The chart shows the monthly maximum UV Index (UVI) for Palmyra 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 Palmyra typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Palmyra 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 Palmyra Compares to Other Months

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

This table compares monthly weather conditions in Palmyra, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)61 mm (2.4 inches)82%moderate
February Weather-3°C (26°F)60 mm (2.3 inches)83%moderate
March Weather4°C (40°F)85 mm (3.3 inches)84%high
April Weather9°C (49°F)113 mm (4.5 inches)85%very high
May Weather17°C (62°F)164 mm (6.5 inches)79%very high
June Weather23°C (73°F)135 mm (5.3 inches)82%very high
July Weather24°C (76°F)100 mm (3.9 inches)80%very high
August Weather23°C (73°F)71 mm (2.8 inches)81%very high
September Weather20°C (68°F)116 mm (4.6 inches)80%very high
October Weather12°C (54°F)117 mm (4.6 inches)82%high
November Weather3°C (39°F)53 mm (2.1 inches)88%moderate
December Weather0°C (32°F)50 mm (2.0 inches)84%low

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