September Weather in South Arm, Australia

Last updated: August 22, 2025

In September, the average temperature in South Arm, Australia hovers around 10°C (51°F), with a minimum of 3°C (38°F) and a maximum of 21°C (70°F). Expect about 50 mm (2.0 in) of precipitation spread over 12 days, and don't forget your umbrella as the average humidity reaches a balmy 82%.

September Temperature in South Arm

In September in South Arm, the average temperature is 10°C (51°F). Maximums can reach 21°C (70°F) and minimums can be as low as 3°C (38°F). It's a great time for travelers to enjoy mild weather while exploring the sights.

September Weather in South Arm: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in South Arm, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Arm, September typically has an average temperature of 10°C (51°F), with highs reaching up to 21°C (70°F) and lows dropping to around 3°C (38°F).

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

September Precipitation in South Arm

In South Arm in September, the precipitation amount is 50 mm (2.0 in), occurring over the course of 12 days.

September Precipitation Trends in South Arm

The chart displays monthly precipitation patterns in South Arm, 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 South Arm, September typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in South Arm

In South Arm in September humidity is 82%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures less appealing and prompting travelers to seek cozy indoor activities or warm drinks to counter the brisk air.

September Average Humidity in South Arm

This chart illustrates the average monthly humidity levels in South Arm, 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 South Arm 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 South Arm

In South Arm in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in South Arm, you can refer to this Hourly UV Index in South Arm.

Maximum UV Index Levels in South Arm for September

The chart shows the monthly maximum UV Index (UVI) for South Arm 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 South Arm typically reaches 6, which falls under the high exposure category.

Data source: South Arm 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 South Arm Compares to Other Months

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

This table compares monthly weather conditions in South Arm, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (63°F)	44 mm (1.8 inches)	68%	extreme
February Weather	16°C (61°F)	50 mm (2.0 inches)	68%	extreme
March Weather	16°C (60°F)	71 mm (2.8 inches)	73%	very high
April Weather	13°C (56°F)	49 mm (1.9 inches)	81%	high
May Weather	11°C (52°F)	56 mm (2.2 inches)	86%	moderate
June Weather	9°C (49°F)	55 mm (2.2 inches)	85%	low
July Weather	9°C (48°F)	43 mm (1.7 inches)	86%	low
August Weather	9°C (48°F)	69 mm (2.7 inches)	84%	moderate
September Weather	10°C (51°F)	50 mm (2.0 inches)	82%	high
October Weather	12°C (53°F)	83 mm (3.3 inches)	77%	very high
November Weather	14°C (57°F)	65 mm (2.6 inches)	77%	very high
December Weather	15°C (59°F)	66 mm (2.6 inches)	70%	extreme