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September Weather in Trafalgar, Australia

Last updated: August 22, 2025

In September, the average temperature in Trafalgar, Australia hovers around 10°C (51°F). You'll want to prepare for a range from a chilly -2°C (29°F) to a pleasantly warm 27°C (81°F). With 93 mm (3.7 in) of precipitation expected over 14 days, you'll likely encounter a fair amount of rain. Additionally, the average humidity stands at 77%, contributing to a distinct atmosphere throughout the month.

September Temperature in Trafalgar

In September in Trafalgar, the average temperature is 10°C (51°F). Maximums can reach 27°C (81°F) and minimums can be as low as -2°C (29°F). Be prepared for fluctuating temperatures and pack layers to enjoy your trip comfortably.

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

The chart illustrates September temperature patterns in Trafalgar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trafalgar, 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 (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec666463575147474751555962
Data source: Temperature data for Trafalgar 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 Trafalgar

In Trafalgar, in September, the precipitation amount is 93 mm (3.7 in) over the course of 14 days.

September Precipitation Trends in Trafalgar

The chart displays monthly precipitation patterns in Trafalgar, 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 Trafalgar, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec4551466374566710093898383
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Trafalgar

In Trafalgar in September humidity is 77%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that can make outdoor activities somewhat uncomfortable, causing clothes to cling to your skin and breathing to feel heavier, which may deter longer sightseeing adventures.

September Average Humidity in Trafalgar

This chart illustrates the average monthly humidity levels in Trafalgar, 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 Trafalgar is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%65%70%75%79%81%82%80%77%71%71%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Trafalgar

In Trafalgar 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 Trafalgar.

Maximum UV Index Levels in Trafalgar for September

The chart shows the monthly maximum UV Index (UVI) for Trafalgar 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 Trafalgar typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec13121174334791113
Data source: Trafalgar 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 Trafalgar Compares to Other Months

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

This table compares monthly weather conditions in Trafalgar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (67°F)45 mm (1.8 inches)64%extreme
February Weather18°C (64°F)51 mm (2.0 inches)65%extreme
March Weather17°C (63°F)46 mm (1.8 inches)70%extreme
April Weather14°C (57°F)63 mm (2.5 inches)75%high
May Weather11°C (51°F)74 mm (2.9 inches)79%moderate
June Weather8°C (47°F)56 mm (2.2 inches)81%moderate
July Weather8°C (47°F)66 mm (2.6 inches)82%moderate
August Weather9°C (48°F)100 mm (3.9 inches)80%moderate
September Weather10°C (51°F)93 mm (3.7 inches)77%high
October Weather13°C (55°F)89 mm (3.5 inches)71%very high
November Weather15°C (59°F)83 mm (3.3 inches)71%extreme
December Weather17°C (62°F)83 mm (3.2 inches)67%extreme

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