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September Weather in Mosman Park, Australia

Last updated: August 22, 2025

In Mosman Park, Australia, the average temperature in September hovers around 15°C (60°F). Expect a range where the minimum dips to 7°C (44°F) and the maximum peaks at 28°C (83°F). During this month, precipitation totals approximately 42 mm (1.6 in), spread over 7 days, while average humidity remains at a comfortable 71%.

September Temperature in Mosman Park

In September in Mosman Park, the average temperature is 15°C (60°F), with maximums reaching 28°C (83°F) and minimums dipping as low as 7°C (44°F). This makes it a great time for travelers to enjoy mild weather and outdoor activities while exploring the area.

September Weather in Mosman Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mosman Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mosman Park, September typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (83°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec747573686259585760636773
Data source: Temperature data for Mosman Park generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Mosman Park

In Mosman Park in September, the total precipitation amount is 42 mm (1.6 in) accumulated over a span of 7 days.

September Precipitation Trends in Mosman Park

The chart displays monthly precipitation patterns in Mosman Park, 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 Mosman Park, September typically receives around 42 mm (1.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec31582121581081151034241268
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mosman Park

In Mosman Park in September humidity is 71%. With an average temperature of 15°C (60°F), this humidity feels like a warm blanket wrapped around you, making travel slightly uncomfortable as you feel sticky and sluggish.

September Average Humidity in Mosman Park

This chart illustrates the average monthly humidity levels in Mosman Park, 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 Mosman Park is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec53%55%59%70%72%77%77%75%71%63%56%53%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mosman Park

In Mosman Park 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 Mosman Park.

Maximum UV Index Levels in Mosman Park for September

The chart shows the monthly maximum UV Index (UVI) for Mosman Park 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 Mosman Park typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141411964468111314
Data source: Mosman Park 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 Mosman Park Compares to Other Months

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

This table compares monthly weather conditions in Mosman Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)31 mm (1.2 inches)52%extreme
February Weather24°C (75°F)58 mm (2.3 inches)55%extreme
March Weather23°C (73°F)21 mm (0.8 inches)59%extreme
April Weather20°C (68°F)21 mm (0.8 inches)70%very high
May Weather17°C (62°F)58 mm (2.3 inches)72%high
June Weather15°C (59°F)107 mm (4.2 inches)77%moderate
July Weather15°C (58°F)115 mm (4.5 inches)77%moderate
August Weather14°C (58°F)103 mm (4.1 inches)75%high
September Weather15°C (60°F)42 mm (1.6 inches)71%very high
October Weather17°C (63°F)41 mm (1.6 inches)63%extreme
November Weather20°C (68°F)26 mm (1.0 inches)56%extreme
December Weather23°C (73°F)8 mm (0.3 inches)53%extreme

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