September Weather in Mallala, Australia

Last updated: August 22, 2025

In September, the average temperature in Mallala, Australia hovers around 13°C (56°F). Expect a range from a chilly 3°C (37°F) to a warm 29°C (85°F). With about 35 mm (1.4 in) of precipitation spread over 8 days, you'll want to be prepared for some wet weather. The average humidity sits at a comfortable 65%, making it a pleasant, if variable, time to visit.

September Temperature in Mallala

In September in Mallala, the average temperature is 13°C (56°F). Maximums can reach 29°C (85°F) and minimums can be as low as 3°C (37°F). This makes Mallala a great destination for travelers seeking mild weather and the possibility of both warm and cool experiences.

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

The chart illustrates September temperature patterns in Mallala, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mallala, September typically has an average temperature of 13°C (56°F), with highs reaching up to 29°C (85°F) and lows dropping to around 3°C (37°F).

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

September Precipitation in Mallala

In Mallala in September, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.

September Precipitation Trends in Mallala

The chart displays monthly precipitation patterns in Mallala, 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 Mallala, September typically receives around 35 mm (1.4 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 Mallala

In Mallala in September humidity is 65%. With an average temperature of 13°C (56°F), this humidity feels like a cool, refreshing embrace, providing a pleasant backdrop for traveling as long as you're prepared for the occasional dampness in the air.

September Average Humidity in Mallala

This chart illustrates the average monthly humidity levels in Mallala, 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 Mallala is approximately 65%, 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 Mallala

In Mallala in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Mallala.

Maximum UV Index Levels in Mallala for September

The chart shows the monthly maximum UV Index (UVI) for Mallala 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 Mallala typically reaches 8, which falls under the very high exposure category.

Data source: Mallala 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 Mallala Compares to Other Months

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

This table compares monthly weather conditions in Mallala, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	16 mm (0.6 inches)	41%	extreme
February Weather	22°C (71°F)	19 mm (0.7 inches)	46%	extreme
March Weather	21°C (69°F)	10 mm (0.4 inches)	55%	extreme
April Weather	18°C (64°F)	23 mm (0.9 inches)	66%	very high
May Weather	14°C (57°F)	36 mm (1.4 inches)	73%	moderate
June Weather	11°C (52°F)	37 mm (1.4 inches)	76%	moderate
July Weather	11°C (52°F)	42 mm (1.6 inches)	76%	moderate
August Weather	11°C (52°F)	56 mm (2.2 inches)	70%	moderate
September Weather	13°C (56°F)	35 mm (1.4 inches)	65%	very high
October Weather	16°C (61°F)	32 mm (1.3 inches)	51%	very high
November Weather	19°C (66°F)	33 mm (1.3 inches)	50%	extreme
December Weather	21°C (70°F)	13 mm (0.5 inches)	46%	extreme