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September Weather in Arkadelphia, United States

Last updated: June 24, 2025

In Arkadelphia, United States, the average temperature in September hovers around 25°C (78°F), making it a pleasant time to visit. However, temperatures can vary significantly, with a minimum of 10°C (50°F) and a maximum soaring to 39°C (102°F). Expect some rain, as the area receives an average precipitation of 92 mm (3.6 in) spread over 7 days, while the humidity remains at a moderate 63%. Don't forget to pack accordingly!

September Temperature in Arkadelphia

In September in Arkadelphia, the average temperature is 25°C (78°F). Maximum temperatures can reach 39°C (102°F), while minimums can drop as low as 10°C (50°F). Be prepared for a varied climate, ensuring you pack both light clothing for the heat and warmer layers for cooler evenings.

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

The chart illustrates September temperature patterns in Arkadelphia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arkadelphia, September typically has an average temperature of 25°C (78°F), with highs reaching up to 39°C (102°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec454858637280838177665349
Data source: Temperature data for Arkadelphia 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 Arkadelphia

In Arkadelphia in September, the precipitation amount is 92 mm (3.6 in) over the course of 7 days.

September Precipitation Trends in Arkadelphia

The chart displays monthly precipitation patterns in Arkadelphia, 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 Arkadelphia, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec103158161185154117961079210080158
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Arkadelphia

In Arkadelphia in September humidity is 63%. With an average temperature of 25°C (78°F), this humidity feels like a warm embrace, making travel both invigorating and slightly stifling, as you navigate the balance between enjoying the outdoor sights and seeking relief in shaded areas.

September Average Humidity in Arkadelphia

This chart illustrates the average monthly humidity levels in Arkadelphia, 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 Arkadelphia is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%78%79%81%77%72%65%63%70%82%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Arkadelphia

In Arkadelphia 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 Arkadelphia.

Maximum UV Index Levels in Arkadelphia for September

The chart shows the monthly maximum UV Index (UVI) for Arkadelphia 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 Arkadelphia typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111119864
Data source: Arkadelphia 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 Arkadelphia Compares to Other Months

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

This table compares monthly weather conditions in Arkadelphia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)103 mm (4.1 inches)82%moderate
February Weather9°C (48°F)158 mm (6.2 inches)80%high
March Weather14°C (58°F)161 mm (6.4 inches)78%very high
April Weather17°C (63°F)184 mm (7.3 inches)79%very high
May Weather22°C (73°F)154 mm (6.1 inches)81%extreme
June Weather27°C (80°F)117 mm (4.6 inches)77%extreme
July Weather28°C (83°F)96 mm (3.8 inches)72%extreme
August Weather27°C (82°F)107 mm (4.2 inches)65%extreme
September Weather25°C (78°F)92 mm (3.6 inches)63%very high
October Weather19°C (66°F)100 mm (3.9 inches)70%very high
November Weather12°C (53°F)80 mm (3.1 inches)82%high
December Weather10°C (49°F)158 mm (6.2 inches)88%moderate

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