Weather in Australia in September

September in Australia is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.

A country pin in September is a warning: one region of Australia will not match another. Use a city page if you already know where you are going. Compared with January and July, September sits in the middle of Australia's year.

Australia
Average temp
20°C

12–28°C

Rainfall
8 mm

Not much rain

Sunshine

What to expect

Daytime

Warm days in Australia in September. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.

You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.

Rain

Rain is not the story in Australia in September. Pack for sun. A shower would be news, not a plan.

Do not build the trip around weather windows. Build it around shade if it is hot, and around getting outside if it is not.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • A layer for cooler evenings

Average weather in Australia

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

Similar weather in September

Other destinations whose September averages sit close to this one.

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FAQs about Australia

Climate averages for Australia, 1991–2020.

The best time to visit Australia is between September and December, the most comfortable stretch of the year on these averages.

January is the hottest month, with an average around 30°C.

February is the wettest month, with about 37 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.