September Weather in Gueydan, United States

Last updated: June 24, 2025

In September, the average temperature in Gueydan, United States is a pleasant 26°C (80°F). Expect a minimum of 14°C (57°F) and a maximum reaching up to 35°C (95°F). You'll also experience an average humidity of 75% with precipitation totaling 136 mm (5.4 in) spread over 15 days.

September Temperature in Gueydan

In September in Gueydan, the average temperature is 26°C (80°F). Maximums can reach 35°C (95°F) and minimums can be as low as 14°C (57°F). This range makes Gueydan an ideal destination for travelers looking to enjoy warm weather while also having the option for cooler evenings.

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

The chart illustrates September temperature patterns in Gueydan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gueydan, September typically has an average temperature of 26°C (80°F), with highs reaching up to 35°C (95°F) and lows dropping to around 14°C (57°F).

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

September Precipitation in Gueydan

In Gueydan in September, the precipitation amount is 136 mm (5.4 in) over a period of 15 days.

September Precipitation Trends in Gueydan

The chart displays monthly precipitation patterns in Gueydan, 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 Gueydan, September typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 15 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 Gueydan

In Gueydan in September humidity is 75%. With an average temperature of 26°C (80°F), this humidity feels like a warm, muggy embrace, making travel a bit sticky and uncomfortable but also inviting you to slow down and savor the local culture in shaded cafes and breezy spots by the water.

September Average Humidity in Gueydan

This chart illustrates the average monthly humidity levels in Gueydan, 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 Gueydan is approximately 75%, 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 Gueydan

In Gueydan in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Gueydan.

Maximum UV Index Levels in Gueydan for September

The chart shows the monthly maximum UV Index (UVI) for Gueydan 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 Gueydan typically reaches 11, which falls under the extreme exposure category.

Data source: Gueydan 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 Gueydan Compares to Other Months

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

This table compares monthly weather conditions in Gueydan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	102 mm (4.0 inches)	79%	moderate
February Weather	15°C (59°F)	101 mm (4.0 inches)	80%	very high
March Weather	18°C (65°F)	59 mm (2.3 inches)	78%	very high
April Weather	21°C (70°F)	130 mm (5.1 inches)	81%	extreme
May Weather	25°C (77°F)	159 mm (6.2 inches)	79%	extreme
June Weather	27°C (81°F)	160 mm (6.3 inches)	75%	extreme
July Weather	28°C (83°F)	187 mm (7.3 inches)	74%	extreme
August Weather	28°C (83°F)	204 mm (8.0 inches)	73%	extreme
September Weather	26°C (80°F)	136 mm (5.4 inches)	75%	extreme
October Weather	23°C (73°F)	112 mm (4.4 inches)	75%	very high
November Weather	16°C (61°F)	82 mm (3.2 inches)	79%	high
December Weather	14°C (57°F)	114 mm (4.5 inches)	83%	moderate