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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 23°C (73°F), with lows dipping to a cool 6°C (43°F) and highs soaring up to a scorching 38°C (101°F). Expect 87 mm (3.4 in) of precipitation over 9 days, contributing to an average humidity of 75%. Prepare for a month of warm days and occasional showers!

September Temperature in Palmyra

In September in Palmyra, the average temperature is 23°C (73°F). Maximum temperatures can reach as high as 38°C (101°F), while minimums can drop to a chilly 6°C (43°F). Pack accordingly for both warm days and cooler nights during your trip!

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 23°C (73°F), with highs reaching up to 38°C (101°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec394450596876827973634843
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 precipitation amount is 87 mm (3.4 in), occurring over a span of 9 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 87 mm (3.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec63976210510010364123871106890
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 75%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel slightly uncomfortable yet invigorating as the air wraps around you, creating a sense of walking through a lush, tropical paradise.

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 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%84%82%83%83%79%77%75%81%87%85%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3679101010108753
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 Weather4°C (40°F)63 mm (2.5 inches)84%moderate
February Weather7°C (44°F)97 mm (3.8 inches)84%high
March Weather10°C (50°F)62 mm (2.5 inches)84%high
April Weather15°C (60°F)105 mm (4.1 inches)82%very high
May Weather20°C (69°F)100 mm (3.9 inches)82%very high
June Weather24°C (76°F)103 mm (4.0 inches)83%very high
July Weather28°C (82°F)64 mm (2.5 inches)79%very high
August Weather26°C (79°F)123 mm (4.8 inches)77%very high
September Weather23°C (73°F)87 mm (3.4 inches)75%very high
October Weather17°C (64°F)110 mm (4.3 inches)81%high
November Weather9°C (49°F)68 mm (2.7 inches)87%moderate
December Weather6°C (43°F)89 mm (3.5 inches)85%moderate

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