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September Weather in Perthville, Australia

Last updated: August 22, 2025

In September, the average temperature in Perthville, Australia hovers around 9°C (49°F), with a minimum of -5°C (24°F) and a maximum reaching up to 27°C (80°F). Expect about 45 mm (1.8 in) of precipitation over approximately 7 days, contributing to an average humidity of 69%. Stay prepared for a mix of chilly and warm moments during your visit!

September Temperature in Perthville

In September in Perthville, the average temperature is 9°C (49°F). The maximum can reach 27°C (80°F), and the minimum can be as low as -5°C (24°F). Expect a wide temperature range, so pack layers for your travels!

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

The chart illustrates September temperature patterns in Perthville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Perthville, September typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (80°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec706663554843424248556066
Data source: Temperature data for Perthville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Perthville

In Perthville in September, the precipitation amount is 45 mm (1.8 in) spread over a duration of 7 days.

September Precipitation Trends in Perthville

The chart displays monthly precipitation patterns in Perthville, 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 Perthville, September typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec526893263437456245588880
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Perthville

In Perthville in September, humidity is 69%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that settles into your bones, making it less than ideal for traveling and prompting you to seek warmer attire to stay comfortable.

September Average Humidity in Perthville

This chart illustrates the average monthly humidity levels in Perthville, 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 Perthville is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec55%60%68%74%78%78%79%74%69%58%53%62%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Perthville

In Perthville 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 Perthville.

Maximum UV Index Levels in Perthville for September

The chart shows the monthly maximum UV Index (UVI) for Perthville 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 Perthville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151413864468111316
Data source: Perthville 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 Perthville Compares to Other Months

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

This table compares monthly weather conditions in Perthville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)51 mm (2.0 inches)55%extreme
February Weather19°C (67°F)68 mm (2.7 inches)60%extreme
March Weather17°C (63°F)93 mm (3.7 inches)68%extreme
April Weather13°C (56°F)26 mm (1.0 inches)74%very high
May Weather9°C (48°F)34 mm (1.4 inches)78%high
June Weather6°C (43°F)37 mm (1.5 inches)78%moderate
July Weather5°C (42°F)45 mm (1.8 inches)79%moderate
August Weather6°C (42°F)62 mm (2.4 inches)74%high
September Weather9°C (49°F)45 mm (1.8 inches)69%very high
October Weather13°C (56°F)58 mm (2.3 inches)57%extreme
November Weather15°C (60°F)88 mm (3.5 inches)53%extreme
December Weather19°C (66°F)79 mm (3.1 inches)62%extreme

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