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September Weather in Gaston, United States

Last updated: June 24, 2025

In Gaston, United States, the average temperature in September is a pleasant 23°C (74°F). However, you can expect temperatures to range from a cool 9°C (49°F) to a warm 36°C (96°F). During this month, precipitation averages 111 mm (4.4 in) over 9 days, and the air is fairly humid with an average humidity level of 75%.

September Temperature in Gaston

In September in Gaston, the average temperature is 23°C (74°F). Maximums can reach up to 36°C (96°F), while minimums can drop as low as 9°C (49°F). Travelers should be prepared for warm days and cooler nights.

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

The chart illustrates September temperature patterns in Gaston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gaston, September typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (96°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec424752617076807974655146
Data source: Temperature data for Gaston 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 Gaston

In Gaston in September, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.

September Precipitation Trends in Gaston

The chart displays monthly precipitation patterns in Gaston, 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 Gaston, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8810984105111123116147111898394
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gaston

In Gaston in September, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

September Average Humidity in Gaston

This chart illustrates the average monthly humidity levels in Gaston, 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 Gaston is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%84%82%83%83%79%77%75%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Gaston

In Gaston 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 Gaston.

Maximum UV Index Levels in Gaston for September

The chart shows the monthly maximum UV Index (UVI) for Gaston 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 Gaston typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101111109853
Data source: Gaston 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 Gaston Compares to Other Months

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

This table compares monthly weather conditions in Gaston, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)88 mm (3.5 inches)84%moderate
February Weather9°C (48°F)109 mm (4.3 inches)84%high
March Weather11°C (52°F)84 mm (3.3 inches)84%very high
April Weather16°C (62°F)105 mm (4.1 inches)82%very high
May Weather21°C (70°F)111 mm (4.4 inches)82%very high
June Weather25°C (76°F)123 mm (4.8 inches)83%extreme
July Weather27°C (81°F)116 mm (4.6 inches)79%extreme
August Weather26°C (79°F)147 mm (5.8 inches)77%very high
September Weather23°C (74°F)111 mm (4.4 inches)75%very high
October Weather18°C (65°F)89 mm (3.5 inches)81%very high
November Weather11°C (51°F)83 mm (3.3 inches)87%moderate
December Weather8°C (46°F)94 mm (3.7 inches)85%moderate

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