Australia weather in September
Australia in September averages 20°C (67°F) and 8 mm of rain. It is one of the driest months of the year here.
Of the twelve months in Australia, September is the fifth coldest and the second driest.

- Average temp
- 20°C (67°F)
12–28°C · 53–82°F
- Rainfall
- 8 mm
Not much rain
- Sunshine
- —
What is Australia like in September?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Australia in September?
A warm mid-layer
Nights drop to around 12°C (53°F).
Comfortable walking shoes you can rinse
Dry warm weather is walking weather, and dust gets into everything.
September compared with August and October
September in Australia is 5.2°C warmer than August and about as wet as it, which averages 14°C (58°F).
September in Australia is 2.5°C cooler than October and 12 mm drier than it, which averages 22°C (72°F).
Daylight in Australia in September
On 15 September the sun is up for 11 hours 56 minutes in Australia, rising about 06:32 and setting about 18:28 local time.
September ends 42 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 1 hour 46 minutes short of December, the longest-lit month here.
Travel guides for Australia
What to read before you book.
Australia weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 30°C / 86°F | 23 mm |
| February | 29°C / 83°F | 37 mm |
| March | 25°C / 78°F | 16 mm |
| April | 21°C / 70°F | 13 mm |
| May | 16°C / 61°F | 14 mm |
| June | 12°C / 54°F | 16 mm |
| July | 12°C / 54°F | 15 mm |
| August | 14°C / 58°F | 5 mm |
| September | 20°C / 67°F | 8 mm |
| October | 22°C / 72°F | 20 mm |
| November | 26°C / 78°F | 23 mm |
| December | 27°C / 81°F | 33 mm |
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Australia in September
September climate averages for Australia, 1991–2020.
Australia averages 20°C (67°F) in September, ranging from about 12°C (53°F) at night to 28°C (82°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. September sees only about 8 mm, so rain is unlikely to affect your plans.
No. September averages 20°C (67°F) against 22°C (72°F) in October — 2.5°C cooler.
September is 5.2°C warmer than August, and about as wet.
Yes. September falls inside the most comfortable stretch of the year here, September to December, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 11 hours 56 minutes of daylight in mid-September, against 13 hours 42 minutes in December and 10 hours 34 minutes in June.
On 15 September, sunrise is about 06:32 and sunset about 18:28 local time. Both shift across the month — the month ends 42 minutes longer than it starts.






