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September Weather in Greenock, Australia

Last updated: August 22, 2025

In September, the average temperature in Greenock, Australia is a mild 12°C (53°F). Expect a temperature range that can dip as low as -1°C (31°F) and rise to a pleasant 29°C (84°F). During this month, you can also anticipate about 34 mm (1.3 in) of precipitation spread across 7 days, with an average humidity of 65%. Be prepared for a blend of cool and warm days!

September Temperature in Greenock

In September in Greenock, the average temperature is 12°C (53°F). The maximum can reach 29°C (84°F), while the minimum can be as low as -1°C (31°F). This wide temperature range makes Greenock a versatile destination for travelers, offering opportunities for both warm-weather activities and cool-weather experiences.

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

The chart illustrates September temperature patterns in Greenock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenock, September typically has an average temperature of 12°C (53°F), with highs reaching up to 29°C (84°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec726866615348484953586368
Data source: Temperature data for Greenock 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 Greenock

In Greenock in September, the total precipitation amount is 34 mm (1.3 in) over the course of 7 days.

September Precipitation Trends in Greenock

The chart displays monthly precipitation patterns in Greenock, 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 Greenock, September typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec152110243436425734333815
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Greenock

In Greenock in September, humidity is 65%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that can make traveling uncomfortable, often requiring extra layers and frequent breaks indoors to warm up.

September Average Humidity in Greenock

This chart illustrates the average monthly humidity levels in Greenock, 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 Greenock is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec41%46%55%66%73%76%76%70%65%51%50%46%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Greenock

In Greenock 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 Greenock.

Maximum UV Index Levels in Greenock for September

The chart shows the monthly maximum UV Index (UVI) for Greenock 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 Greenock typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141412853458101315
Data source: Greenock 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 Greenock Compares to Other Months

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

This table compares monthly weather conditions in Greenock, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)15 mm (0.6 inches)41%extreme
February Weather20°C (69°F)21 mm (0.8 inches)46%extreme
March Weather19°C (66°F)10 mm (0.4 inches)55%extreme
April Weather16°C (61°F)24 mm (0.9 inches)66%very high
May Weather12°C (53°F)34 mm (1.3 inches)73%moderate
June Weather9°C (49°F)36 mm (1.4 inches)76%moderate
July Weather9°C (49°F)42 mm (1.6 inches)76%moderate
August Weather9°C (49°F)57 mm (2.2 inches)70%moderate
September Weather12°C (53°F)34 mm (1.3 inches)65%very high
October Weather14°C (58°F)33 mm (1.3 inches)51%very high
November Weather17°C (63°F)38 mm (1.5 inches)50%extreme
December Weather20°C (68°F)15 mm (0.6 inches)46%extreme

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