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September Weather in Captains Flat, Australia

Last updated: August 22, 2025

In September, the average temperature in Captains Flat, Australia hovers around 9°C (49°F). Take note of the temperature fluctuations, as it can dip to a chilling -3°C (28°F) or soar to a warm 26°C (79°F). Expect some rain, with an average precipitation of 38 mm (1.5 in) over about 6 days. Additionally, the humidity tends to be on the higher side, averaging around 70%.

September Temperature in Captains Flat

In September in Captains Flat, the average temperature is 9°C (49°F). The maximum can reach 26°C (79°F), while the minimum can drop to as low as -3°C (28°F). Be sure to pack layers to accommodate the varying temperatures during your travels!

September Weather in Captains Flat: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Captains Flat, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Captains Flat, September typically has an average temperature of 9°C (49°F), with highs reaching up to 26°C (79°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec686461554843424348545863
Data source: Temperature data for Captains Flat 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 Captains Flat

In Captains Flat in September, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.

September Precipitation Trends in Captains Flat

The chart displays monthly precipitation patterns in Captains Flat, 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 Captains Flat, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec5182942441323362387510291
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Captains Flat

In Captains Flat in September, humidity is 70%. With an average temperature of 9°C (49°F), this humidity feels like a chilly dampness that seeps into your bones, making it necessary to dress in layers and pack an umbrella for your travels.

September Average Humidity in Captains Flat

This chart illustrates the average monthly humidity levels in Captains Flat, 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 Captains Flat is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec58%65%68%74%78%80%81%77%70%58%57%61%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Captains Flat

In Captains Flat 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 Captains Flat.

Maximum UV Index Levels in Captains Flat for September

The chart shows the monthly maximum UV Index (UVI) for Captains Flat 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 Captains Flat typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151312853358101215
Data source: Captains Flat 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 Captains Flat Compares to Other Months

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

This table compares monthly weather conditions in Captains Flat, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)51 mm (2.0 inches)58%extreme
February Weather18°C (64°F)82 mm (3.2 inches)65%extreme
March Weather16°C (61°F)93 mm (3.7 inches)68%extreme
April Weather13°C (55°F)24 mm (0.9 inches)74%very high
May Weather9°C (48°F)41 mm (1.6 inches)78%moderate
June Weather6°C (43°F)32 mm (1.3 inches)79%moderate
July Weather5°C (42°F)33 mm (1.3 inches)80%moderate
August Weather6°C (43°F)61 mm (2.4 inches)77%moderate
September Weather9°C (49°F)38 mm (1.5 inches)70%very high
October Weather12°C (55°F)75 mm (3.0 inches)58%very high
November Weather15°C (59°F)102 mm (4.0 inches)57%extreme
December Weather17°C (63°F)91 mm (3.6 inches)61%extreme

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