September Weather in Exeter, Australia

Last updated: August 22, 2025

In September, the average temperature in Exeter, Australia hovers around 11°C (53°F), offering a mild climate. Visitors can expect a minimum chill of -2°C (28°F) and a maximum warmth soaring to 30°C (87°F). With an average precipitation of 38 mm (1.5 in) spread over 6 days, staying dry may require some planning. Additionally, the average humidity sits at a comfortable 64%, making it a pleasant time to explore!

September Temperature in Exeter

In September, in Exeter, the average temperature is 11°C (53°F). Maximum temperatures can reach up to 30°C (87°F), while minimums can drop as low as -2°C (28°F). This range makes Exeter a versatile destination for travelers, ensuring a variety of experiences depending on the weather.

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

The chart illustrates September temperature patterns in Exeter, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Exeter, September typically has an average temperature of 11°C (53°F), with highs reaching up to 30°C (87°F) and lows dropping to around -2°C (28°F).

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

September Precipitation in Exeter

In Exeter in September, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.

September Precipitation Trends in Exeter

The chart displays monthly precipitation patterns in Exeter, 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 Exeter, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 6 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 Exeter

In Exeter in September, humidity is 64%. With an average temperature of 11°C (53°F), this humidity feels like a cool, damp blanket wrapping around you, making traveling a bit challenging as the air feels heavier, and you may want to dress in layers to stay comfortable while exploring.

September Average Humidity in Exeter

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

In Exeter in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Exeter.

Maximum UV Index Levels in Exeter for September

The chart shows the monthly maximum UV Index (UVI) for Exeter 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 Exeter typically reaches 8, which falls under the very high exposure category.

Data source: Exeter 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 Exeter Compares to Other Months

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

This table compares monthly weather conditions in Exeter, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	49 mm (1.9 inches)	70%	extreme
February Weather	19°C (67°F)	112 mm (4.4 inches)	74%	extreme
March Weather	17°C (63°F)	129 mm (5.1 inches)	73%	extreme
April Weather	14°C (58°F)	27 mm (1.0 inches)	73%	very high
May Weather	11°C (51°F)	45 mm (1.8 inches)	72%	moderate
June Weather	8°C (47°F)	29 mm (1.2 inches)	70%	moderate
July Weather	8°C (46°F)	30 mm (1.2 inches)	69%	moderate
August Weather	8°C (47°F)	53 mm (2.1 inches)	68%	high
September Weather	11°C (53°F)	38 mm (1.5 inches)	64%	very high
October Weather	14°C (58°F)	72 mm (2.8 inches)	61%	very high
November Weather	16°C (61°F)	88 mm (3.5 inches)	64%	extreme
December Weather	19°C (66°F)	83 mm (3.3 inches)	71%	extreme