Weather in Sydney in September
September in Sydney is mild enough that walking is the default. This is a city-break month more than a sea-holiday month.
In Australia, this is how Sydney actually wears September, not how a country centroid would. Compared with January and July, September sits in the middle of Sydney's year.
- Average temp
- 17°C
12–22°C
- Rainfall
- 57 mm
Showers likely
- Sunshine
- 8 h
hours per day
What to expect
Daytime
Mild afternoons in Sydney are the prize in September. You can eat outside on the good days. You still want something for the breeze.
This is walking weather. Shade is useful, not essential the way it is in the hot months. A long outdoor day is a reasonable plan.
Rain
September is on the drier side of the year in Sydney. Showers are possible. They do not define the month.
A shell that lives in the bag is enough. This is not February, and it should not be packed as if it were.
Evening
Evenings are cooler. A layer helps after sunset.
What to pack
Sun protection
Rain jacket
A layer for cooler evenings
Where to stay in Sydney
Dates are a starting point for September.
Travel guides for Sydney
What to read before you book.
Average weather in Sydney
TemperatureRainfall
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FAQs about Sydney
Climate averages for Sydney, 1991–2020.
The best time to visit Sydney is between October and January, the most comfortable stretch of the year on these averages.
January is the hottest month, with an average around 24°C.
June is the wettest month, with about 121 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
