September Weather in Gaston, United States

Last updated: June 24, 2025

In Gaston, United States, the average temperature in September hovers around 16°C (61°F), offering a mild climate. Expect the mercury to dip as low as 4°C (39°F), while occasionally soaring to a warm 35°C (96°F). Be prepared for 77 mm (3.0 in) of precipitation over approximately 8 days, and a comfortable average humidity of 71%.

September Temperature in Gaston

In September, in Gaston, the average temperature is 16°C (61°F). Maximum temperatures can reach 35°C (96°F), while minimums can drop as low as 4°C (39°F). Be sure to pack layers and prepare for both warm days and cool evenings while traveling!

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 16°C (61°F), with highs reaching up to 35°C (96°F) and lows dropping to around 4°C (39°F).

Data source: Temperature data for Gaston generated using information from the Copernicus Climate Change Service.

September Precipitation in Gaston

In Gaston in September, the precipitation amount is 77 mm (3.0 in) distributed over 8 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 77 mm (3.0 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Gaston

In Gaston in September humidity is 71%. With an average temperature of 16°C (61°F), this humidity feels like walking through a warm, damp blanket, making travel slightly uncomfortable but still enjoyable for those who appreciate mild weather.

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 71%, offering insight into how humid the weather typically is during this month.

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 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 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 7, which falls under the high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	208 mm (8.2 inches)	85%	low
February Weather	4°C (39°F)	181 mm (7.1 inches)	84%	moderate
March Weather	6°C (44°F)	154 mm (6.1 inches)	85%	moderate
April Weather	9°C (49°F)	132 mm (5.2 inches)	83%	high
May Weather	13°C (55°F)	65 mm (2.6 inches)	83%	very high
June Weather	16°C (61°F)	54 mm (2.1 inches)	83%	very high
July Weather	18°C (65°F)	7 mm (0.3 inches)	82%	very high
August Weather	19°C (67°F)	8 mm (0.3 inches)	74%	very high
September Weather	16°C (61°F)	77 mm (3.0 inches)	71%	high
October Weather	10°C (51°F)	116 mm (4.6 inches)	81%	moderate
November Weather	7°C (45°F)	179 mm (7.1 inches)	87%	moderate
December Weather	4°C (40°F)	219 mm (8.6 inches)	87%	low