September Weather in Melbourne, United States

Last updated: June 24, 2025

In September, the average temperature in Melbourne, United States hovers around 24°C (75°F), offering a delightful climate for exploration. However, be prepared for a diverse range of temperatures, with minimums dipping to 9°C (48°F) and highs soaring up to 35°C (96°F). During this period, expect about 80 mm (3.2 in) of precipitation spread across 7 days, contributing to an average humidity of 71%. It's a perfect time to enjoy both the sunshine and refreshing rain!

September Temperature in Melbourne

In September in Melbourne, the average temperature is 24°C (75°F). Maximum temperatures can reach 35°C (96°F), while minimums can drop to as low as 9°C (48°F). This range makes Melbourne a great destination for travelers seeking a mix of warm days and cool evenings.

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

The chart illustrates September temperature patterns in Melbourne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Melbourne, September typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (96°F) and lows dropping to around 9°C (48°F).

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

September Precipitation in Melbourne

In Melbourne in September, the total precipitation amount is 80 mm (3.2 in) over the course of 7 days.

September Precipitation Trends in Melbourne

The chart displays monthly precipitation patterns in Melbourne, 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 Melbourne, September typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 7 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 Melbourne

In Melbourne in September, humidity is 71%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making outdoor activities for traveling both refreshing and sometimes a bit stifling, prompting travelers to seek shaded spots or refreshing drinks while exploring.

September Average Humidity in Melbourne

This chart illustrates the average monthly humidity levels in Melbourne, 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 Melbourne 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 Melbourne

In Melbourne in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Melbourne.

Maximum UV Index Levels in Melbourne for September

The chart shows the monthly maximum UV Index (UVI) for Melbourne 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 Melbourne typically reaches 9, which falls under the very high exposure category.

Data source: Melbourne 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 Melbourne Compares to Other Months

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

This table compares monthly weather conditions in Melbourne, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	75 mm (2.9 inches)	84%	moderate
February Weather	5°C (42°F)	118 mm (4.6 inches)	83%	high
March Weather	11°C (52°F)	138 mm (5.4 inches)	81%	very high
April Weather	15°C (58°F)	148 mm (5.8 inches)	81%	very high
May Weather	20°C (69°F)	165 mm (6.5 inches)	83%	very high
June Weather	25°C (77°F)	91 mm (3.6 inches)	83%	extreme
July Weather	27°C (81°F)	82 mm (3.2 inches)	81%	extreme
August Weather	26°C (79°F)	111 mm (4.4 inches)	74%	very high
September Weather	24°C (75°F)	80 mm (3.2 inches)	71%	very high
October Weather	16°C (62°F)	104 mm (4.1 inches)	76%	high
November Weather	9°C (49°F)	80 mm (3.1 inches)	84%	moderate
December Weather	7°C (44°F)	90 mm (3.5 inches)	88%	moderate