September Weather in Porterdale, United States

Last updated: June 24, 2025

In Porterdale, United States, the average temperature in September hovers around 24°C (76°F), making it a pleasant time to visit. Expect a minimum of 11°C (52°F) and a maximum of 36°C (97°F), so pack layers for the fluctuating conditions. While you enjoy your stay, be prepared for 106 mm (4.2 in) of precipitation spread over 8 days, contributing to an average humidity of 82%. Stay hydrated and relish the vibrant atmosphere!

September Temperature in Porterdale

In September in Porterdale, the average temperature is 24°C (76°F). Maximum temperatures can reach 36°C (97°F), while minimums can dip as low as 11°C (52°F). This diverse temperature range makes Porterdale an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Porterdale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porterdale, September typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Porterdale

In Porterdale in September, the precipitation amount is 106 mm (4.2 in) over a span of 8 days.

September Precipitation Trends in Porterdale

The chart displays monthly precipitation patterns in Porterdale, 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 Porterdale, September typically receives around 106 mm (4.2 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 Porterdale

In Porterdale in September, humidity is 82%. With an average temperature of 24°C (76°F), this humidity feels like wearing a warm, damp blanket, making travel uncomfortable and sticky as you explore.

September Average Humidity in Porterdale

This chart illustrates the average monthly humidity levels in Porterdale, 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 Porterdale is approximately 82%, 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 Porterdale

In Porterdale 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 Porterdale.

Maximum UV Index Levels in Porterdale for September

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

Data source: Porterdale 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 Porterdale Compares to Other Months

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

This table compares monthly weather conditions in Porterdale, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	101 mm (4.0 inches)	86%	moderate
February Weather	11°C (52°F)	133 mm (5.2 inches)	84%	high
March Weather	14°C (57°F)	108 mm (4.2 inches)	83%	very high
April Weather	17°C (63°F)	114 mm (4.5 inches)	81%	very high
May Weather	22°C (72°F)	98 mm (3.8 inches)	81%	extreme
June Weather	25°C (77°F)	115 mm (4.5 inches)	81%	extreme
July Weather	27°C (80°F)	106 mm (4.2 inches)	83%	extreme
August Weather	26°C (80°F)	130 mm (5.1 inches)	81%	very high
September Weather	24°C (76°F)	106 mm (4.2 inches)	82%	very high
October Weather	19°C (67°F)	107 mm (4.2 inches)	78%	very high
November Weather	12°C (53°F)	80 mm (3.1 inches)	86%	high
December Weather	10°C (49°F)	135 mm (5.3 inches)	89%	moderate