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September Weather in Chiltern, Australia

Last updated: August 22, 2025

In September, the average temperature in Chiltern, Australia hovers around 10°C (51°F), offering a mild climate. Be prepared for temperature fluctuations, with minimal dips to -2°C (28°F) and highs reaching up to 27°C (81°F). Throughout the month, you can expect approximately 59 mm (2.3 in) of precipitation over about 9 days, contributing to an average humidity level of 73%.

September Temperature in Chiltern

In September in Chiltern, the average temperature is 10°C (51°F). The maximum can reach 27°C (81°F) and the minimum can be as low as -2°C (28°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates September temperature patterns in Chiltern, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chiltern, September typically has an average temperature of 10°C (51°F), with highs reaching up to 27°C (81°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec757167595045454651586470
Data source: Temperature data for Chiltern 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 Chiltern

In Chiltern in September, the precipitation amount is 59 mm (2.3 in) over the course of 9 days.

September Precipitation Trends in Chiltern

The chart displays monthly precipitation patterns in Chiltern, 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 Chiltern, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec493757627965828359797477
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chiltern

In Chiltern in September, humidity is 73%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that can make outdoor activities uncomfortable, causing your clothes to cling to your skin and a persistent coolness that seeps into your bones, which might deter long excursions without proper layering.

September Average Humidity in Chiltern

This chart illustrates the average monthly humidity levels in Chiltern, 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 Chiltern is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec45%52%61%72%79%82%84%80%73%60%58%51%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chiltern

In Chiltern 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 Chiltern.

Maximum UV Index Levels in Chiltern for September

The chart shows the monthly maximum UV Index (UVI) for Chiltern 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 Chiltern typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14121175335791214
Data source: Chiltern 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 Chiltern Compares to Other Months

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

This table compares monthly weather conditions in Chiltern, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)48 mm (1.9 inches)45%extreme
February Weather22°C (71°F)36 mm (1.4 inches)52%extreme
March Weather20°C (68°F)57 mm (2.2 inches)61%extreme
April Weather15°C (59°F)62 mm (2.4 inches)72%high
May Weather10°C (51°F)79 mm (3.1 inches)79%moderate
June Weather7°C (45°F)65 mm (2.6 inches)82%moderate
July Weather7°C (45°F)82 mm (3.2 inches)84%moderate
August Weather8°C (46°F)83 mm (3.3 inches)80%moderate
September Weather10°C (51°F)59 mm (2.3 inches)73%high
October Weather14°C (58°F)79 mm (3.1 inches)60%very high
November Weather18°C (64°F)73 mm (2.9 inches)58%extreme
December Weather21°C (70°F)77 mm (3.0 inches)51%extreme

Compare Chiltern's Climate with Cities Worldwide