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September Weather in Orbost, Australia

Last updated: August 22, 2025

In September, the average temperature in Orbost, Australia is a pleasant 12°C (55°F), although it can vary quite drastically. You might experience a cool minimum of 3°C (37°F) or bask in warmth with a maximum of 35°C (95°F). Expect around 55 mm (2.2 in) of precipitation spread over 10 days, and prepare for a humidity level averaging 72%.

September Temperature in Orbost

In September in Orbost, the average temperature is 12°C (55°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 3°C (37°F). Be prepared for a wide range of temperatures and pack accordingly for your visit!

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

The chart illustrates September temperature patterns in Orbost, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Orbost, September typically has an average temperature of 12°C (55°F), with highs reaching up to 35°C (95°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec706766605450505154586266
Data source: Temperature data for Orbost 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 Orbost

In Orbost in September, the precipitation amount is 55 mm (2.2 in) spread over a duration of 10 days.

September Precipitation Trends in Orbost

The chart displays monthly precipitation patterns in Orbost, 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 Orbost, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec475349406655486955729272
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Orbost

In Orbost in September, humidity is 72%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration a little less comfortable and requiring a light jacket to stay warm and dry.

September Average Humidity in Orbost

This chart illustrates the average monthly humidity levels in Orbost, 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 Orbost is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec62%69%73%78%81%81%83%78%72%63%63%63%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Orbost

In Orbost 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 Orbost.

Maximum UV Index Levels in Orbost for September

The chart shows the monthly maximum UV Index (UVI) for Orbost 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 Orbost typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14121174335791114
Data source: Orbost 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 Orbost Compares to Other Months

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

This table compares monthly weather conditions in Orbost, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)47 mm (1.9 inches)62%extreme
February Weather20°C (67°F)53 mm (2.1 inches)69%extreme
March Weather19°C (66°F)49 mm (1.9 inches)73%extreme
April Weather16°C (60°F)40 mm (1.6 inches)78%high
May Weather12°C (55°F)66 mm (2.6 inches)81%moderate
June Weather10°C (50°F)55 mm (2.2 inches)81%moderate
July Weather10°C (50°F)48 mm (1.9 inches)83%moderate
August Weather10°C (51°F)69 mm (2.7 inches)78%moderate
September Weather12°C (55°F)55 mm (2.2 inches)72%high
October Weather15°C (59°F)72 mm (2.8 inches)63%very high
November Weather17°C (63°F)92 mm (3.6 inches)63%extreme
December Weather19°C (66°F)72 mm (2.8 inches)63%extreme

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