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September Weather in Ranelagh, Australia

Last updated: August 22, 2025

In September, the average temperature in Ranelagh, Australia is a cool 9°C (48°F). Daytime highs can reach as much as 23°C (74°F), while nighttime lows may dip to -1°C (30°F). Expect some moisture, with 72 mm (2.8 in) of precipitation spread over 16 days. The average humidity sits comfortably at 82%, creating a uniquely refreshing atmosphere.

September Temperature in Ranelagh

In September in Ranelagh, the average temperature is 9°C (48°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -1°C (30°F). This weather makes it a great time for travelers to enjoy a variety of outdoor activities while being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Ranelagh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ranelagh, September typically has an average temperature of 9°C (48°F), with highs reaching up to 23°C (74°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec605857534945444547515457
Data source: Temperature data for Ranelagh 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 Ranelagh

In Ranelagh in September, the precipitation amount is 72 mm (2.8 in) over the course of 16 days.

September Precipitation Trends in Ranelagh

The chart displays monthly precipitation patterns in Ranelagh, 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 Ranelagh, September typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec385167576259638372938173
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ranelagh

In Ranelagh in September, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.

September Average Humidity in Ranelagh

This chart illustrates the average monthly humidity levels in Ranelagh, 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 Ranelagh is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%68%73%81%86%85%86%84%82%77%77%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ranelagh

In Ranelagh in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Ranelagh, you can refer to this Hourly UV Index in Ranelagh.

Maximum UV Index Levels in Ranelagh for September

The chart shows the monthly maximum UV Index (UVI) for Ranelagh 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 Ranelagh typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1311963224681013
Data source: Ranelagh 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 Ranelagh Compares to Other Months

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

This table compares monthly weather conditions in Ranelagh, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)38 mm (1.5 inches)68%extreme
February Weather14°C (58°F)51 mm (2.0 inches)68%extreme
March Weather14°C (58°F)67 mm (2.6 inches)73%very high
April Weather12°C (53°F)57 mm (2.3 inches)81%high
May Weather9°C (49°F)62 mm (2.4 inches)86%moderate
June Weather7°C (46°F)59 mm (2.3 inches)85%low
July Weather7°C (44°F)63 mm (2.5 inches)86%low
August Weather7°C (45°F)83 mm (3.3 inches)84%moderate
September Weather9°C (48°F)72 mm (2.8 inches)82%high
October Weather11°C (51°F)93 mm (3.6 inches)77%very high
November Weather12°C (55°F)81 mm (3.2 inches)77%very high
December Weather14°C (57°F)73 mm (2.9 inches)70%extreme

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