September Weather in Irwinton, United States

Last updated: June 24, 2025

In Irwinton, United States, the average temperature in September hovers around 25°C (78°F), creating a pleasant climate for outdoor activities. However, temperatures can range from a cool 12°C (54°F) to a sizzling 37°C (99°F). During this month, expect approximately 106 mm (4.2 in) of rainfall spread over 9 days, contributing to an average humidity level of 82%. Get ready for a warm, yet refreshing experience!

September Temperature in Irwinton

In September in Irwinton, the average temperature is 25°C (78°F). Maximums can reach 37°C (99°F) and minimums can be as low as 12°C (54°F). This climate makes Irwinton an ideal destination for travelers seeking warm weather and a pleasant getaway.

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

The chart illustrates September temperature patterns in Irwinton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Irwinton, September typically has an average temperature of 25°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Irwinton

In Irwinton in September, the total precipitation amount is 106 mm (4.2 in), spread over the course of 9 days.

September Precipitation Trends in Irwinton

The chart displays monthly precipitation patterns in Irwinton, 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 Irwinton, September typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 9 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 Irwinton

In Irwinton in September, humidity is 82%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities a bit more challenging and encouraging you to seek shade or a cool spot during your travels.

September Average Humidity in Irwinton

This chart illustrates the average monthly humidity levels in Irwinton, 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 Irwinton 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 Irwinton

In Irwinton 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 Irwinton.

Maximum UV Index Levels in Irwinton for September

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

Data source: Irwinton 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 Irwinton Compares to Other Months

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

This table compares monthly weather conditions in Irwinton, 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)	98 mm (3.9 inches)	86%	moderate
February Weather	13°C (55°F)	112 mm (4.4 inches)	84%	high
March Weather	15°C (60°F)	75 mm (3.0 inches)	83%	very high
April Weather	19°C (66°F)	96 mm (3.8 inches)	81%	very high
May Weather	23°C (74°F)	92 mm (3.6 inches)	81%	extreme
June Weather	26°C (79°F)	125 mm (4.9 inches)	81%	extreme
July Weather	28°C (82°F)	103 mm (4.1 inches)	83%	extreme
August Weather	27°C (81°F)	119 mm (4.7 inches)	81%	extreme
September Weather	25°C (78°F)	106 mm (4.2 inches)	82%	very high
October Weather	21°C (70°F)	97 mm (3.8 inches)	78%	very high
November Weather	13°C (56°F)	74 mm (2.9 inches)	86%	high
December Weather	11°C (52°F)	120 mm (4.7 inches)	89%	moderate