September Weather in Sienna Plantation, United States

Last updated: June 24, 2025

In Sienna Plantation, United States, the average temperature in September hovers around 27°C (80°F), with minimums dipping to 13°C (55°F) and maximums soaring up to 36°C (97°F). Expect an average precipitation of 185 mm (7.3 in) over 15 days, accompanied by a humidity level of 73%, creating a warm yet refreshing environment.

September Temperature in Sienna Plantation

In September in Sienna Plantation, the average temperature is 27°C (80°F). Maximums can reach 36°C (97°F) and minimums can be as low as 13°C (55°F). This makes Sienna Plantation a great destination for travelers looking to enjoy warm weather while also having cooler evenings.

September Weather in Sienna Plantation: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sienna Plantation, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sienna Plantation, September typically has an average temperature of 27°C (80°F), with highs reaching up to 36°C (97°F) and lows dropping to around 13°C (55°F).

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

September Precipitation in Sienna Plantation

In Sienna Plantation in September, the precipitation amount is 185 mm (7.3 in) over the course of 15 days.

September Precipitation Trends in Sienna Plantation

The chart displays monthly precipitation patterns in Sienna Plantation, 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 Sienna Plantation, September typically receives around 185 mm (7.3 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 Sienna Plantation

In Sienna Plantation in September humidity is 73%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that can make traveling feel sticky and slightly uncomfortable, prompting frequent breaks in the shade and plenty of hydration.

September Average Humidity in Sienna Plantation

This chart illustrates the average monthly humidity levels in Sienna Plantation, 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 Sienna Plantation is approximately 73%, 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 Sienna Plantation

In Sienna Plantation 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 Sienna Plantation.

Maximum UV Index Levels in Sienna Plantation for September

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

Data source: Sienna Plantation 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 Sienna Plantation Compares to Other Months

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

This table compares monthly weather conditions in Sienna Plantation, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (55°F)	85 mm (3.4 inches)	78%	moderate
February Weather	15°C (59°F)	82 mm (3.2 inches)	81%	very high
March Weather	19°C (66°F)	79 mm (3.1 inches)	76%	very high
April Weather	21°C (71°F)	84 mm (3.3 inches)	79%	extreme
May Weather	25°C (78°F)	162 mm (6.4 inches)	79%	extreme
June Weather	28°C (82°F)	162 mm (6.4 inches)	74%	extreme
July Weather	29°C (84°F)	148 mm (5.8 inches)	71%	extreme
August Weather	29°C (84°F)	192 mm (7.6 inches)	68%	extreme
September Weather	27°C (80°F)	185 mm (7.3 inches)	73%	very high
October Weather	23°C (73°F)	91 mm (3.6 inches)	75%	very high
November Weather	17°C (63°F)	81 mm (3.2 inches)	78%	high
December Weather	15°C (59°F)	104 mm (4.1 inches)	84%	moderate