September Weather in Helidon, Australia

Last updated: August 22, 2025

In September, the average temperature in Helidon, Australia is a comfortable 17°C (62°F). While you can expect minimum temperatures to dip to 2°C (36°F) and maximums to reach 34°C (94°F), the overall climate remains pleasant. Be prepared for some light rain, with 12 mm (0.5 in) of precipitation spread across about 3 days. With an average humidity of 69%, it's the perfect time to enjoy the mild weather!

September Temperature in Helidon

In September in Helidon, the average temperature is 17°C (62°F), with maximums reaching 34°C (94°F) and minimums dipping as low as 2°C (36°F). This makes it an ideal time for travelers to experience a mix of warm days and cooler nights, perfect for exploring the area comfortably.

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

The chart illustrates September temperature patterns in Helidon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Helidon, September typically has an average temperature of 17°C (62°F), with highs reaching up to 34°C (94°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Helidon

In Helidon in September, the precipitation amount is 12 mm (0.5 in) during a span of 3 days.

September Precipitation Trends in Helidon

The chart displays monthly precipitation patterns in Helidon, 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 Helidon, September typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 3 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Helidon

In Helidon in September, humidity is 69%. With an average temperature of 17°C (62°F), this humidity feels like a damp embrace, making traveling a bit uncomfortable as the air hangs heavy around you, causing you to sweat slightly more than usual and prompting a desire for refreshing breaks in shaded areas.

September Average Humidity in Helidon

This chart illustrates the average monthly humidity levels in Helidon, 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 Helidon is approximately 69%, 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 Helidon

In Helidon 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 Helidon.

Maximum UV Index Levels in Helidon for September

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

Data source: Helidon 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 Helidon Compares to Other Months

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

This table compares monthly weather conditions in Helidon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	67 mm (2.6 inches)	70%	extreme
February Weather	23°C (74°F)	89 mm (3.5 inches)	69%	extreme
March Weather	22°C (72°F)	117 mm (4.6 inches)	75%	extreme
April Weather	18°C (66°F)	29 mm (1.1 inches)	78%	very high
May Weather	15°C (60°F)	17 mm (0.7 inches)	74%	high
June Weather	12°C (55°F)	31 mm (1.2 inches)	76%	moderate
July Weather	12°C (54°F)	26 mm (1.0 inches)	72%	moderate
August Weather	13°C (56°F)	13 mm (0.5 inches)	75%	very high
September Weather	17°C (62°F)	12 mm (0.5 inches)	69%	very high
October Weather	19°C (67°F)	118 mm (4.6 inches)	62%	extreme
November Weather	21°C (70°F)	58 mm (2.3 inches)	61%	extreme
December Weather	23°C (74°F)	90 mm (3.5 inches)	70%	extreme