September Weather in Hahnville, United States

Last updated: June 24, 2025

In Hahnville, United States, the average temperature in September is a warm 27°C (80°F), with a minimum of 17°C (62°F) and a maximum reaching 34°C (94°F). Expect 160 mm (6.3 in) of precipitation spread over 15 days, contributing to an average humidity of 79%.

September Temperature in Hahnville

In September in Hahnville, the average temperature is 27°C (80°F), with a maximum reaching 34°C (94°F) and a minimum dropping as low as 17°C (62°F). This pleasant climate makes it an ideal destination for travelers looking to enjoy warm weather while exploring Hahnville.

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

The chart illustrates September temperature patterns in Hahnville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hahnville, September typically has an average temperature of 27°C (80°F), with highs reaching up to 34°C (94°F) and lows dropping to around 17°C (62°F).

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

September Precipitation in Hahnville

In Hahnville in September, the precipitation amount is 160 mm (6.3 in) over the course of 15 days.

September Precipitation Trends in Hahnville

The chart displays monthly precipitation patterns in Hahnville, 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 Hahnville, September typically receives around 160 mm (6.3 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 Hahnville

In Hahnville in September humidity is 79%. With an average temperature of 27°C (80°F), this humidity feels like walking through a warm, dense blanket, making travel feel sluggish and allowing every step to become noticeably heavier.

September Average Humidity in Hahnville

This chart illustrates the average monthly humidity levels in Hahnville, 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 Hahnville is approximately 79%, 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 Hahnville

In Hahnville 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 Hahnville.

Maximum UV Index Levels in Hahnville for September

The chart shows the monthly maximum UV Index (UVI) for Hahnville 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 Hahnville typically reaches 10, which falls under the very high exposure category.

Data source: Hahnville 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 Hahnville Compares to Other Months

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

This table compares monthly weather conditions in Hahnville, 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 (55°F)	96 mm (3.8 inches)	81%	moderate
February Weather	15°C (60°F)	116 mm (4.6 inches)	81%	very high
March Weather	18°C (65°F)	79 mm (3.1 inches)	79%	very high
April Weather	21°C (69°F)	115 mm (4.5 inches)	81%	extreme
May Weather	25°C (77°F)	141 mm (5.5 inches)	77%	extreme
June Weather	27°C (81°F)	210 mm (8.3 inches)	74%	extreme
July Weather	28°C (82°F)	202 mm (8.0 inches)	74%	extreme
August Weather	28°C (82°F)	238 mm (9.4 inches)	73%	extreme
September Weather	27°C (80°F)	160 mm (6.3 inches)	79%	very high
October Weather	23°C (74°F)	127 mm (5.0 inches)	77%	very high
November Weather	16°C (62°F)	68 mm (2.7 inches)	81%	high
December Weather	14°C (58°F)	112 mm (4.4 inches)	84%	moderate