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September Weather in Seacliff, Australia

Last updated: August 22, 2025

In Seacliff, Australia, the average temperature in September hovers around 13°C (55°F), with a minimum of 5°C (42°F) and a peak of 25°C (77°F). Expect 44 mm (1.7 in) of precipitation over about 9 days, accompanied by an average humidity of 65%. Plan your activities accordingly to make the most of the mild weather!

September Temperature in Seacliff

In September in Seacliff, the average temperature is 13°C (55°F). The maximum can reach 25°C (77°F), while the minimum can be as low as 5°C (42°F). This mild weather makes Seacliff an ideal destination for travelers looking to explore comfortably.

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

The chart illustrates September temperature patterns in Seacliff, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seacliff, September typically has an average temperature of 13°C (55°F), with highs reaching up to 25°C (77°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec706867635753525255596366
Data source: Temperature data for Seacliff 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 Seacliff

In Seacliff in September, the precipitation amount is 44 mm (1.7 in) over the course of 9 days.

September Precipitation Trends in Seacliff

The chart displays monthly precipitation patterns in Seacliff, 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 Seacliff, September typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec162015326154687544383817
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Seacliff

In Seacliff in September, humidity is 65%. With an average temperature of 13°C (55°F), this humidity feels like a cool, damp embrace, making it essential for travelers to dress in layers and be prepared for occasional drizzles, while still enjoying the freshness of the air.

September Average Humidity in Seacliff

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

In Seacliff in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Seacliff.

Maximum UV Index Levels in Seacliff for September

The chart shows the monthly maximum UV Index (UVI) for Seacliff 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 Seacliff typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141312853457101215
Data source: Seacliff 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 Seacliff Compares to Other Months

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

This table compares monthly weather conditions in Seacliff, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)16 mm (0.6 inches)41%extreme
February Weather20°C (69°F)20 mm (0.8 inches)46%extreme
March Weather19°C (67°F)15 mm (0.6 inches)55%extreme
April Weather17°C (64°F)32 mm (1.3 inches)66%very high
May Weather14°C (58°F)61 mm (2.4 inches)73%moderate
June Weather12°C (53°F)54 mm (2.1 inches)76%moderate
July Weather11°C (53°F)68 mm (2.7 inches)76%moderate
August Weather11°C (52°F)75 mm (2.9 inches)70%moderate
September Weather13°C (55°F)44 mm (1.7 inches)65%high
October Weather15°C (59°F)38 mm (1.5 inches)51%very high
November Weather17°C (63°F)38 mm (1.5 inches)50%extreme
December Weather19°C (67°F)17 mm (0.7 inches)46%extreme

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