September Weather in Grantville, Australia

Last updated: August 22, 2025

In Grantville, Australia, the average temperature in September hovers around 12°C (54°F), with a minimum of 6°C (44°F) and a comfortable maximum reaching 23°C (74°F). Expect about 103 mm (4.1 in) of precipitation spread over 15 days, contributing to an average humidity level of 77%. Stay prepared for a mix of cool and rainy days!

September Temperature in Grantville

In September in Grantville, the average temperature is 12°C (54°F). The maximum can reach 23°C (74°F), while the minimum can drop to as low as 6°C (44°F). This is a great time to visit Grantville for comfortable weather, perfect for exploring outdoor attractions.

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

The chart illustrates September temperature patterns in Grantville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grantville, September typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around 6°C (44°F).

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

September Precipitation in Grantville

In Grantville in September, the precipitation amount is 103 mm (4.1 in) during a span of 15 days.

September Precipitation Trends in Grantville

The chart displays monthly precipitation patterns in Grantville, 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 Grantville, September typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 15 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 Grantville

In Grantville in September, humidity is 77%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that wraps around you, making your travels a little more uncomfortable and requiring you to dress in layers to stay warm and dry.

September Average Humidity in Grantville

This chart illustrates the average monthly humidity levels in Grantville, 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 Grantville is approximately 77%, 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 Grantville

In Grantville 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 Grantville.

Maximum UV Index Levels in Grantville for September

The chart shows the monthly maximum UV Index (UVI) for Grantville 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 Grantville typically reaches 7, which falls under the high exposure category.

Data source: Grantville 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 Grantville Compares to Other Months

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

This table compares monthly weather conditions in Grantville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (67°F)	49 mm (1.9 inches)	64%	extreme
February Weather	18°C (65°F)	65 mm (2.6 inches)	65%	extreme
March Weather	18°C (65°F)	60 mm (2.3 inches)	70%	extreme
April Weather	16°C (60°F)	79 mm (3.1 inches)	75%	high
May Weather	13°C (56°F)	114 mm (4.5 inches)	79%	moderate
June Weather	11°C (52°F)	75 mm (3.0 inches)	81%	moderate
July Weather	11°C (51°F)	95 mm (3.7 inches)	82%	moderate
August Weather	11°C (52°F)	122 mm (4.8 inches)	80%	moderate
September Weather	12°C (54°F)	103 mm (4.1 inches)	77%	high
October Weather	14°C (57°F)	94 mm (3.7 inches)	71%	very high
November Weather	16°C (60°F)	77 mm (3.0 inches)	71%	extreme
December Weather	17°C (63°F)	79 mm (3.1 inches)	67%	extreme