September Weather in Arno Bay, Australia

Last updated: August 22, 2025

In September, the average temperature in Arno Bay, Australia hovers around 14°C (57°F). Expect a comfortable range, with minimums dipping to 5°C (40°F) and maximums reaching up to 30°C (87°F). During this month, you can anticipate about 23 mm (0.9 in) of precipitation spread across 4 days, while the average humidity lingers at around 66%.

September Temperature in Arno Bay

In September, in Arno Bay, the average temperature is 14°C (57°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as 5°C (40°F). Pack layers to ensure comfort while exploring, as the weather can vary significantly throughout the day.

September Weather in Arno Bay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Arno Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arno Bay, September typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (87°F) and lows dropping to around 5°C (40°F).

Data source: Temperature data for Arno Bay generated using information from the Copernicus Climate Change Service.

September Precipitation in Arno Bay

In Arno Bay in September, the total precipitation amount is 23 mm (0.9 in) over a span of 4 days.

September Precipitation Trends in Arno Bay

The chart displays monthly precipitation patterns in Arno Bay, 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 Arno Bay, September typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Arno Bay

In Arno Bay in September humidity is 66%. With an average temperature of 14°C (57°F), this humidity feels like a warm, enveloping hug, making it pleasant for strolling through the streets, though a light jacket might be needed to stay comfortable while exploring.

September Average Humidity in Arno Bay

This chart illustrates the average monthly humidity levels in Arno Bay, 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 Arno Bay is approximately 66%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Arno Bay

In Arno Bay 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 Arno Bay.

Maximum UV Index Levels in Arno Bay for September

The chart shows the monthly maximum UV Index (UVI) for Arno Bay 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 Arno Bay typically reaches 8, which falls under the very high exposure category.

Data source: Arno Bay 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 Arno Bay Compares to Other Months

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

This table compares monthly weather conditions in Arno Bay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (71°F)	16 mm (0.6 inches)	55%	extreme
February Weather	21°C (70°F)	21 mm (0.8 inches)	59%	extreme
March Weather	20°C (69°F)	9 mm (0.4 inches)	62%	extreme
April Weather	18°C (65°F)	14 mm (0.6 inches)	69%	very high
May Weather	15°C (59°F)	21 mm (0.8 inches)	73%	moderate
June Weather	12°C (54°F)	22 mm (0.8 inches)	75%	moderate
July Weather	12°C (54°F)	19 mm (0.7 inches)	74%	moderate
August Weather	12°C (54°F)	40 mm (1.6 inches)	71%	moderate
September Weather	14°C (57°F)	23 mm (0.9 inches)	66%	very high
October Weather	16°C (61°F)	28 mm (1.1 inches)	58%	very high
November Weather	18°C (65°F)	42 mm (1.6 inches)	60%	extreme
December Weather	20°C (68°F)	16 mm (0.6 inches)	58%	extreme