September Weather in Bonneau, United States

Last updated: June 24, 2025

In September, the average temperature in Bonneau, United States is a pleasant 25°C (78°F). Expect minimums around 13°C (55°F) and maximums reaching 34°C (94°F). This month typically sees 145 mm (5.7 in) of precipitation spread over 11 days, contributing to an average humidity level of 83%.

September Temperature in Bonneau

In September in Bonneau, the average temperature is 25°C (78°F). Maximums can reach 34°C (94°F) and minimums can be as low as 13°C (55°F). It's an ideal time to visit, as you'll enjoy warm days and cooler evenings perfect for exploring the area.

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

The chart illustrates September temperature patterns in Bonneau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bonneau, September typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (94°F) and lows dropping to around 13°C (55°F).

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

September Precipitation in Bonneau

In Bonneau, in September, the precipitation amount is 145 mm (5.7 in) over a span of 11 days.

September Precipitation Trends in Bonneau

The chart displays monthly precipitation patterns in Bonneau, 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 Bonneau, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 11 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 Bonneau

In Bonneau in September, humidity is 83%. With an average temperature of 25°C (78°F), this humidity feels like stepping into a warm, damp embrace, making travel sticky and exhausting, as each movement can leave you drenched in sweat.

September Average Humidity in Bonneau

This chart illustrates the average monthly humidity levels in Bonneau, 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 Bonneau is approximately 83%, 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 Bonneau

In Bonneau 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 Bonneau.

Maximum UV Index Levels in Bonneau for September

The chart shows the monthly maximum UV Index (UVI) for Bonneau 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 Bonneau typically reaches 9, which falls under the very high exposure category.

Data source: Bonneau 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 Bonneau Compares to Other Months

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

This table compares monthly weather conditions in Bonneau, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	69 mm (2.7 inches)	86%	moderate
February Weather	13°C (55°F)	92 mm (3.6 inches)	81%	high
March Weather	15°C (59°F)	71 mm (2.8 inches)	81%	very high
April Weather	19°C (66°F)	100 mm (3.9 inches)	79%	very high
May Weather	23°C (74°F)	98 mm (3.9 inches)	75%	extreme
June Weather	26°C (79°F)	152 mm (6.0 inches)	75%	extreme
July Weather	27°C (81°F)	195 mm (7.7 inches)	80%	extreme
August Weather	27°C (81°F)	181 mm (7.1 inches)	81%	extreme
September Weather	25°C (78°F)	145 mm (5.7 inches)	83%	very high
October Weather	21°C (70°F)	64 mm (2.5 inches)	78%	very high
November Weather	14°C (57°F)	75 mm (2.9 inches)	85%	high
December Weather	11°C (53°F)	148 mm (5.8 inches)	87%	moderate