September Weather in River Heads, Australia

Last updated: August 22, 2025

In River Heads, Australia, the average temperature for September is a pleasant 20°C (68°F), with a minimum dipping to 8°C (46°F) and a maximum soaring up to 34°C (93°F). Expect some light rain with a total precipitation of 17 mm (0.7 in) spread over 4 days. The air tends to be quite humid, with an average humidity of 71%.

September Temperature in River Heads

In September in River Heads, the average temperature is 20°C (68°F). The maximum can reach 34°C (93°F), while the minimum can be as low as 8°C (46°F). This climate makes River Heads an ideal destination for travelers looking to enjoy mild weather and a variety of outdoor activities.

September Weather in River Heads: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in River Heads, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In River Heads, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (93°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in River Heads

In River Heads in September, the precipitation amount is 17 mm (0.7 in) over a span of 4 days.

September Precipitation Trends in River Heads

The chart displays monthly precipitation patterns in River Heads, 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 River Heads, September typically receives around 17 mm (0.7 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 River Heads

In River Heads in September, humidity is 71%. With an average temperature of 20°C (68°F), this humidity feels like a warm, moist embrace that can quickly lead to discomfort for travelers. The air clings to your skin, making even short walks feel more strenuous, while reaching for a refreshing drink becomes essential to stay hydrated.

September Average Humidity in River Heads

This chart illustrates the average monthly humidity levels in River Heads, 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 River Heads is approximately 71%, 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 River Heads

In River Heads in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in River Heads.

Maximum UV Index Levels in River Heads for September

The chart shows the monthly maximum UV Index (UVI) for River Heads 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 River Heads typically reaches 10, which falls under the very high exposure category.

Data source: River Heads 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 River Heads Compares to Other Months

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

This table compares monthly weather conditions in River Heads, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	54 mm (2.1 inches)	80%	extreme
February Weather	26°C (79°F)	106 mm (4.2 inches)	81%	extreme
March Weather	25°C (77°F)	129 mm (5.1 inches)	81%	extreme
April Weather	22°C (73°F)	94 mm (3.7 inches)	77%	very high
May Weather	20°C (68°F)	58 mm (2.3 inches)	73%	high
June Weather	17°C (63°F)	37 mm (1.5 inches)	70%	moderate
July Weather	17°C (63°F)	31 mm (1.2 inches)	69%	high
August Weather	17°C (64°F)	17 mm (0.7 inches)	72%	very high
September Weather	20°C (68°F)	17 mm (0.7 inches)	71%	very high
October Weather	22°C (72°F)	143 mm (5.6 inches)	74%	extreme
November Weather	24°C (75°F)	70 mm (2.8 inches)	78%	extreme
December Weather	25°C (78°F)	101 mm (4.0 inches)	80%	extreme