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September Weather in Appin, Australia

Last updated: August 22, 2025

In September, the average temperature in Appin, Australia is a comfortable 14°C (57°F). However, be prepared for a range, as temperatures can drop to a minimum of 4°C (39°F) and rise as high as 32°C (89°F). Expect about 40 mm (1.6 in) of precipitation distributed across 7 days, with an average humidity of 64%.

September Temperature in Appin

In September in Appin, the average temperature is 14°C (57°F). Maximums can reach 32°C (89°F) and minimums can be as low as 4°C (39°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates September temperature patterns in Appin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Appin, September typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (89°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec727068635752525357626569
Data source: Temperature data for Appin 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 Appin

In Appin in September, the precipitation amount is 40 mm (1.6 in) over a span of 7 days.

September Precipitation Trends in Appin

The chart displays monthly precipitation patterns in Appin, 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 Appin, September typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec521231753053453547408911291
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Appin

In Appin in September, humidity is 64%. With an average temperature of 14°C (57°F), this humidity feels like a mild embrace, making it comfortable for traveling but with a slight stickiness in the air that encourages you to stay hydrated and seek shade during the warmest part of the day.

September Average Humidity in Appin

This chart illustrates the average monthly humidity levels in Appin, 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 Appin is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%75%73%73%72%70%69%68%64%61%64%71%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Appin

In Appin 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 Appin.

Maximum UV Index Levels in Appin for September

The chart shows the monthly maximum UV Index (UVI) for Appin 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 Appin typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141312853458101214
Data source: Appin 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 Appin Compares to Other Months

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

This table compares monthly weather conditions in Appin, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (73°F)52 mm (2.0 inches)70%extreme
February Weather21°C (71°F)123 mm (4.8 inches)74%extreme
March Weather20°C (68°F)175 mm (6.9 inches)73%extreme
April Weather17°C (63°F)30 mm (1.2 inches)73%very high
May Weather14°C (57°F)53 mm (2.1 inches)72%moderate
June Weather11°C (53°F)45 mm (1.8 inches)70%moderate
July Weather11°C (52°F)35 mm (1.4 inches)69%moderate
August Weather11°C (53°F)47 mm (1.9 inches)68%moderate
September Weather14°C (57°F)40 mm (1.6 inches)64%very high
October Weather17°C (62°F)89 mm (3.5 inches)61%very high
November Weather18°C (65°F)112 mm (4.4 inches)64%extreme
December Weather20°C (69°F)91 mm (3.6 inches)71%extreme

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