nomadseason

September Weather in Dunoon, Australia

Last updated: August 22, 2025

In September, the average temperature in Dunoon, Australia hovers around 17°C (64°F), with minimums dipping to 4°C (40°F) and soaring maximums reaching 36°C (97°F). Expect a precipitation amount of 28 mm (1.1 in) spread over approximately 5 days, and enjoy a comfortable average humidity level of 69%.

September Temperature in Dunoon

In September in Dunoon, the average temperature is 17°C (64°F). Maximum temperatures can reach up to 36°C (97°F), while minimum temperatures can drop as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures, making layering essential for comfort during their visit.

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

The chart illustrates September temperature patterns in Dunoon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dunoon, September typically has an average temperature of 17°C (64°F), with highs reaching up to 36°C (97°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec767573676257575863687175
Data source: Temperature data for Dunoon generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Dunoon

In Dunoon in September, the precipitation amount is 28 mm (1.1 in) over a period of 5 days.

September Precipitation Trends in Dunoon

The chart displays monthly precipitation patterns in Dunoon, 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 Dunoon, September typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec8318417366465641222813182145
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Dunoon

In Dunoon in September humidity is 69%. With an average temperature of 17°C (64°F), this humidity feels like a mild, slightly sticky embrace, making strolls through the streets feel refreshing yet a bit heavy, perfect for leisurely exploration while ensuring to stay hydrated.

September Average Humidity in Dunoon

This chart illustrates the average monthly humidity levels in Dunoon, 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 Dunoon is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%80%78%74%71%70%71%69%71%76%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dunoon

In Dunoon 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 Dunoon.

Maximum UV Index Levels in Dunoon for September

The chart shows the monthly maximum UV Index (UVI) for Dunoon 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 Dunoon typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1615131075579121315
Data source: Dunoon 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 Dunoon Compares to Other Months

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

This table compares monthly weather conditions in Dunoon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)83 mm (3.3 inches)78%extreme
February Weather24°C (75°F)184 mm (7.3 inches)80%extreme
March Weather23°C (73°F)173 mm (6.8 inches)80%extreme
April Weather19°C (67°F)66 mm (2.6 inches)78%very high
May Weather17°C (62°F)46 mm (1.8 inches)73%high
June Weather14°C (58°F)56 mm (2.2 inches)71%moderate
July Weather14°C (57°F)41 mm (1.6 inches)70%moderate
August Weather15°C (59°F)22 mm (0.9 inches)71%high
September Weather17°C (64°F)28 mm (1.1 inches)69%very high
October Weather20°C (68°F)131 mm (5.1 inches)71%extreme
November Weather22°C (71°F)82 mm (3.2 inches)76%extreme
December Weather24°C (75°F)145 mm (5.7 inches)80%extreme

Compare Dunoon's Climate with Cities Worldwide