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September Weather in Ashville, United States

Last updated: June 24, 2025

In September, the average temperature in Ashville, United States is a pleasant 21°C (70°F). However, temperatures can fluctuate significantly, dropping to a minimum of 6°C (43°F) and soaring up to a maximum of 35°C (95°F). During this month, expect 92 mm (3.6 in) of precipitation spread over 8 days, along with an average humidity of 73%, creating a comfortably warm atmosphere.

September Temperature in Ashville

In September in Ashville, the average temperature is 21°C (70°F). Maximums can reach 35°C (95°F) and minimums can be as low as 6°C (43°F). This range makes it an ideal time for travelers seeking a variety of outdoor experiences, from warm afternoons to cooler evenings.

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

The chart illustrates September temperature patterns in Ashville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ashville, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec323543536472777470584337
Data source: Temperature data for Ashville 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 Ashville

In Ashville in September, the precipitation amount is 92 mm (3.6 in), occurring over the course of 8 days.

September Precipitation Trends in Ashville

The chart displays monthly precipitation patterns in Ashville, 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 Ashville, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec80114119119123150111929210298104
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ashville

In Ashville in September, humidity is 73%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace that can make outdoor activities feel sweltering, so it's essential to stay hydrated and take breaks in the shade while exploring.

September Average Humidity in Ashville

This chart illustrates the average monthly humidity levels in Ashville, 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 Ashville is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ashville

In Ashville 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 Ashville.

Maximum UV Index Levels in Ashville for September

The chart shows the monthly maximum UV Index (UVI) for Ashville 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 Ashville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Ashville 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 Ashville Compares to Other Months

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

This table compares monthly weather conditions in Ashville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)80 mm (3.1 inches)88%moderate
February Weather2°C (36°F)114 mm (4.5 inches)88%moderate
March Weather6°C (44°F)119 mm (4.7 inches)87%high
April Weather12°C (53°F)119 mm (4.7 inches)85%very high
May Weather18°C (65°F)123 mm (4.8 inches)81%very high
June Weather22°C (73°F)150 mm (5.9 inches)82%very high
July Weather25°C (77°F)111 mm (4.4 inches)81%very high
August Weather23°C (74°F)92 mm (3.6 inches)73%very high
September Weather21°C (70°F)92 mm (3.6 inches)73%very high
October Weather15°C (59°F)102 mm (4.0 inches)78%high
November Weather6°C (43°F)98 mm (3.9 inches)89%moderate
December Weather3°C (37°F)104 mm (4.1 inches)87%moderate

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