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September Weather in Koondrook, Australia

Last updated: August 22, 2025

In Koondrook, Australia, the average temperature in September hovers around 13°C (55°F), with a minimum dipping to 0°C (33°F) and a maximum soaring up to 36°C (97°F). Expect a total precipitation of about 26 mm (1.0 in) over the course of 6 days, while the average humidity rests at a comfortable 66%. Prepare accordingly for a month of varied weather!

September Temperature in Koondrook

In September in Koondrook, the average temperature is 13°C (55°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 0°C (33°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and cool conditions.

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

The chart illustrates September temperature patterns in Koondrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koondrook, September typically has an average temperature of 13°C (55°F), with highs reaching up to 36°C (97°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec787571635448484955626873
Data source: Temperature data for Koondrook 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 Koondrook

In Koondrook in September, the precipitation amount is 26 mm (1.0 in) over the course of 6 days.

September Precipitation Trends in Koondrook

The chart displays monthly precipitation patterns in Koondrook, 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 Koondrook, September typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec242025303528303826424645
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Koondrook

In Koondrook in September, humidity is 66%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill in the air, making outdoor activities invigorating but requiring a light jacket for comfort while exploring.

September Average Humidity in Koondrook

This chart illustrates the average monthly humidity levels in Koondrook, 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 Koondrook is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec35%42%53%64%73%77%78%73%66%52%47%40%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Koondrook

In Koondrook in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Koondrook.

Maximum UV Index Levels in Koondrook for September

The chart shows the monthly maximum UV Index (UVI) for Koondrook 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 Koondrook typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311853357101215
Data source: Koondrook 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 Koondrook Compares to Other Months

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

This table compares monthly weather conditions in Koondrook, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)24 mm (0.9 inches)35%extreme
February Weather24°C (75°F)20 mm (0.8 inches)42%extreme
March Weather21°C (71°F)25 mm (1.0 inches)53%extreme
April Weather17°C (63°F)30 mm (1.2 inches)64%very high
May Weather12°C (54°F)35 mm (1.4 inches)73%moderate
June Weather9°C (49°F)28 mm (1.1 inches)77%moderate
July Weather9°C (49°F)30 mm (1.2 inches)78%moderate
August Weather10°C (50°F)38 mm (1.5 inches)73%moderate
September Weather13°C (55°F)26 mm (1.0 inches)66%high
October Weather17°C (62°F)42 mm (1.7 inches)52%very high
November Weather20°C (68°F)46 mm (1.8 inches)47%extreme
December Weather23°C (74°F)45 mm (1.8 inches)39%extreme

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