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September Weather in Blue Ridge, United States

Last updated: June 24, 2025

In September, the average temperature in Blue Ridge, United States hovers around 27°C (81°F), offering a warm embrace. However, be prepared for fluctuations, as the temperature can dip to a brisk 10°C (51°F) or soar to a scorching 39°C (103°F). With an average humidity of 69%, the atmosphere can feel quite sticky. Rainfall is another factor to consider, with 103 mm (4.1 in) of precipitation typically spread over 9 days.

September Temperature in Blue Ridge

In September in Blue Ridge, the average temperature is 27°C (81°F). The maximum can reach 39°C (103°F), while the minimum can be as low as 10°C (51°F). Travelers should be prepared for hot days and cool nights, making it essential to pack layers for varying temperatures.

September Weather in Blue Ridge: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Blue Ridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blue Ridge, September typically has an average temperature of 27°C (81°F), with highs reaching up to 39°C (103°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec505263677682868781715954
Data source: Temperature data for Blue Ridge 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 Blue Ridge

In Blue Ridge in September, the precipitation amount is 103 mm (4.1 in) distributed over 9 days.

September Precipitation Trends in Blue Ridge

The chart displays monthly precipitation patterns in Blue Ridge, 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 Blue Ridge, September typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec729089112169766088103976490
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Blue Ridge

In Blue Ridge in September, humidity is 69%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket wrapped around you, making it essential to stay hydrated and take frequent breaks during your travels.

September Average Humidity in Blue Ridge

This chart illustrates the average monthly humidity levels in Blue Ridge, 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 Blue Ridge is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Blue Ridge

In Blue Ridge in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Blue Ridge.

Maximum UV Index Levels in Blue Ridge for September

The chart shows the monthly maximum UV Index (UVI) for Blue Ridge 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 Blue Ridge typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec578111112121110864
Data source: Blue Ridge 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 Blue Ridge Compares to Other Months

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

This table compares monthly weather conditions in Blue Ridge, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)72 mm (2.8 inches)79%moderate
February Weather11°C (52°F)90 mm (3.5 inches)80%high
March Weather17°C (63°F)89 mm (3.5 inches)78%very high
April Weather20°C (68°F)112 mm (4.4 inches)79%extreme
May Weather24°C (76°F)168 mm (6.6 inches)81%extreme
June Weather28°C (83°F)76 mm (3.0 inches)77%extreme
July Weather30°C (86°F)60 mm (2.4 inches)71%extreme
August Weather30°C (87°F)88 mm (3.5 inches)67%extreme
September Weather27°C (81°F)103 mm (4.1 inches)69%very high
October Weather21°C (71°F)97 mm (3.8 inches)73%very high
November Weather15°C (60°F)64 mm (2.5 inches)82%high
December Weather12°C (55°F)90 mm (3.5 inches)87%moderate

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