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September Weather in Katanning, Australia

Last updated: August 22, 2025

In September, the average temperature in Katanning, Australia hovers around 11°C (53°F). Expect chilly nights with a minimum dipping to -1°C (31°F), while daytime brings a warm maximum of 27°C (81°F). Prepare for some rain, as 37 mm (1.5 in) of precipitation is likely over the course of 7 days. Don't forget, the average humidity is around 71%, making it a cozy yet refreshing experience!

September Temperature in Katanning

In September in Katanning, the average temperature is 11°C (53°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -1°C (31°F). Travelers should be prepared for a wide range of temperatures when visiting during this month.

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

The chart illustrates September temperature patterns in Katanning, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Katanning, September typically has an average temperature of 11°C (53°F), with highs reaching up to 27°C (81°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec696866615552505053576167
Data source: Temperature data for Katanning 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 Katanning

In Katanning in September, the precipitation amount is 37 mm (1.5 in) during a span of 7 days.

September Precipitation Trends in Katanning

The chart displays monthly precipitation patterns in Katanning, 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 Katanning, September typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec8543022374056583728249
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Katanning

In Katanning in September humidity is 71%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that wraps around you, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while exploring.

September Average Humidity in Katanning

This chart illustrates the average monthly humidity levels in Katanning, 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 Katanning is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec53%55%59%70%72%77%77%75%71%63%56%53%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Katanning

In Katanning 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 Katanning.

Maximum UV Index Levels in Katanning for September

The chart shows the monthly maximum UV Index (UVI) for Katanning 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 Katanning typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412864468101314
Data source: Katanning 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 Katanning Compares to Other Months

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

This table compares monthly weather conditions in Katanning, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (69°F)8 mm (0.3 inches)52%extreme
February Weather20°C (69°F)54 mm (2.1 inches)55%extreme
March Weather19°C (66°F)30 mm (1.2 inches)59%extreme
April Weather16°C (61°F)22 mm (0.8 inches)70%very high
May Weather13°C (55°F)37 mm (1.4 inches)72%high
June Weather11°C (52°F)40 mm (1.6 inches)77%moderate
July Weather10°C (50°F)56 mm (2.2 inches)77%moderate
August Weather10°C (50°F)58 mm (2.3 inches)75%high
September Weather11°C (53°F)37 mm (1.5 inches)71%very high
October Weather14°C (57°F)28 mm (1.1 inches)63%very high
November Weather16°C (62°F)24 mm (0.9 inches)56%extreme
December Weather20°C (68°F)9 mm (0.3 inches)53%extreme

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