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September Weather in McCaysville, United States

Last updated: June 24, 2025

In September, the average temperature in McCaysville, United States hovers around 21°C (71°F). Expect a range from a refreshing 8°C (46°F) to a warm 33°C (91°F). Be prepared for 109 mm (4.3 in) of precipitation spread over 10 days, contributing to an average humidity of 76%.

September Temperature in McCaysville

In September in McCaysville, the average temperature is 21°C (71°F). Maximums can reach 33°C (91°F), and minimums can be as low as 8°C (46°F). This climate is ideal for travelers seeking warm weather while still being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in McCaysville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In McCaysville, September typically has an average temperature of 21°C (71°F), with highs reaching up to 33°C (91°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec414652586772757470624844
Data source: Temperature data for McCaysville 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 McCaysville

In McCaysville in September, the precipitation amount is 109 mm (4.3 in) spread over 10 days.

September Precipitation Trends in McCaysville

The chart displays monthly precipitation patterns in McCaysville, 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 McCaysville, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10919116114711813912214910914189148
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in McCaysville

In McCaysville in September humidity is 76%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket, making traveling both refreshing and a bit exhausting, as the air clings to your skin and you often find yourself reaching for water to stay hydrated.

September Average Humidity in McCaysville

This chart illustrates the average monthly humidity levels in McCaysville, 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 McCaysville is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in McCaysville

In McCaysville 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 McCaysville.

Maximum UV Index Levels in McCaysville for September

The chart shows the monthly maximum UV Index (UVI) for McCaysville 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 McCaysville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109764
Data source: McCaysville 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 McCaysville Compares to Other Months

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

This table compares monthly weather conditions in McCaysville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)109 mm (4.3 inches)86%moderate
February Weather8°C (46°F)191 mm (7.5 inches)86%high
March Weather11°C (52°F)161 mm (6.4 inches)86%very high
April Weather14°C (58°F)147 mm (5.8 inches)82%very high
May Weather19°C (67°F)118 mm (4.6 inches)85%extreme
June Weather22°C (72°F)139 mm (5.5 inches)85%extreme
July Weather24°C (75°F)122 mm (4.8 inches)83%extreme
August Weather23°C (74°F)149 mm (5.9 inches)76%very high
September Weather21°C (71°F)109 mm (4.3 inches)76%very high
October Weather16°C (62°F)140 mm (5.5 inches)80%high
November Weather9°C (49°F)89 mm (3.5 inches)88%high
December Weather7°C (44°F)148 mm (5.8 inches)88%moderate

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