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September Weather in Mars Hill, United States

Last updated: June 24, 2025

In September, the average temperature in Mars Hill, United States is a mild 14°C (57°F), but be prepared for a range that can dip to a chilly -3°C (27°F) and soar up to a warm 30°C (86°F). Rainfall is moderate, with an average precipitation amount of 104 mm (4.1 in) spread across 11 days. With an average humidity of 85%, it's a perfect time to experience the lush landscape and vibrant atmosphere of the region.

September Temperature in Mars Hill

In September in Mars Hill, the average temperature is 14°C (57°F). Maximum temperatures can reach 30°C (86°F), while minimums can drop as low as -3°C (27°F). Be prepared for a wide range of temperatures when traveling to Mars Hill during this month.

September Weather in Mars Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mars Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mars Hill, September typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec151725385161666557453220
Data source: Temperature data for Mars Hill 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 Mars Hill

In Mars Hill in September, the precipitation amount is 104 mm (4.1 in) over the course of 11 days.

September Precipitation Trends in Mars Hill

The chart displays monthly precipitation patterns in Mars Hill, 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 Mars Hill, September typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9479771101099411592104116119110
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mars Hill

In Mars Hill in September, humidity is 85%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and sluggish.

September Average Humidity in Mars Hill

This chart illustrates the average monthly humidity levels in Mars Hill, 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 Mars Hill is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mars Hill

In Mars Hill in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Mars Hill.

Maximum UV Index Levels in Mars Hill for September

The chart shows the monthly maximum UV Index (UVI) for Mars Hill 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 Mars Hill typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887532
Data source: Mars Hill 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 Mars Hill Compares to Other Months

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

This table compares monthly weather conditions in Mars Hill, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)94 mm (3.7 inches)93%low
February Weather-8°C (17°F)79 mm (3.1 inches)92%moderate
March Weather-4°C (26°F)77 mm (3.0 inches)90%moderate
April Weather3°C (38°F)110 mm (4.3 inches)87%high
May Weather11°C (51°F)109 mm (4.3 inches)82%very high
June Weather16°C (61°F)94 mm (3.7 inches)77%very high
July Weather19°C (67°F)115 mm (4.5 inches)81%very high
August Weather18°C (65°F)92 mm (3.6 inches)83%very high
September Weather14°C (57°F)104 mm (4.1 inches)85%high
October Weather7°C (46°F)116 mm (4.6 inches)87%moderate
November Weather0°C (32°F)118 mm (4.7 inches)87%moderate
December Weather-7°C (20°F)110 mm (4.3 inches)90%low

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