September Weather in Roma, Australia

Last updated: August 22, 2025

In Roma, Australia, the average temperature in September hovers around 18°C (65°F), with minimums dipping to 1°C (35°F) and maximums reaching a scorching 38°C (101°F). Expect a light precipitation of about 6 mm (0.3 in) over the course of just 1 day during this month. With an average humidity of 64%, the climate is both refreshing and comfortable!

September Temperature in Roma

In September in Roma, the average temperature is 18°C (65°F), with maximums reaching 38°C (101°F) and minimums dropping as low as 1°C (35°F). Travelers should prepare for a wide range of temperatures and pack accordingly.

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

The chart illustrates September temperature patterns in Roma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roma, September typically has an average temperature of 18°C (65°F), with highs reaching up to 38°C (101°F) and lows dropping to around 1°C (35°F).

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

September Precipitation in Roma

In Roma in September, the precipitation amount is 6 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Roma

The chart displays monthly precipitation patterns in Roma, 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 Roma, September typically receives around 6 mm (0.3 inches) of precipitation spread over approximately 1 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 Roma

In Roma in September humidity is 64%. With an average temperature of 18°C (65°F), this humidity feels like a gentle embrace, perfect for leisurely strolls yet slightly sticky, reminding travelers to stay hydrated and take breaks in the shade.

September Average Humidity in Roma

This chart illustrates the average monthly humidity levels in Roma, 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 Roma is approximately 64%, 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 Roma

In Roma in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Roma.

Maximum UV Index Levels in Roma for September

The chart shows the monthly maximum UV Index (UVI) for Roma 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 Roma typically reaches 11, which falls under the extreme exposure category.

Data source: Roma 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 Roma Compares to Other Months

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

This table compares monthly weather conditions in Roma, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	28°C (83°F)	32 mm (1.3 inches)	58%	extreme
February Weather	27°C (80°F)	57 mm (2.2 inches)	57%	extreme
March Weather	24°C (76°F)	87 mm (3.4 inches)	72%	extreme
April Weather	20°C (68°F)	10 mm (0.4 inches)	74%	very high
May Weather	16°C (61°F)	7 mm (0.3 inches)	72%	very high
June Weather	12°C (54°F)	16 mm (0.6 inches)	73%	moderate
July Weather	12°C (54°F)	12 mm (0.5 inches)	68%	high
August Weather	14°C (57°F)	11 mm (0.4 inches)	72%	very high
September Weather	18°C (65°F)	6 mm (0.3 inches)	64%	extreme
October Weather	22°C (72°F)	65 mm (2.6 inches)	49%	extreme
November Weather	24°C (76°F)	53 mm (2.1 inches)	47%	extreme
December Weather	27°C (81°F)	37 mm (1.5 inches)	64%	extreme