Weather in Sydney in September
In an average September, Sydney sees a daily high around 21°C and a low around 10°C, based on 1980–2026 of local climate records.
| Average high | 21°C |
|---|---|
| Typical high range | 17°C to 27°C |
| Average low | 10°C |
| Typical low range | 6°C to 14°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
37°C
1980-09-30
Lowest
13°C
2005-09-04
Low
Highest
26°C
2017-09-23
Lowest
2°C
1992-09-13
Feels-like
Highest
39°C
1983-09-29
Lowest
-3°C
1992-09-13
Humidity
Highest
15.3 g/m³
2004-09-28
Lowest
3.5 g/m³
1994-09-19
Wind
Highest
45 km/h
1981-09-27
Lowest
7 km/h
2008-09-01
Gust
Highest
95 km/h
1981-09-27
Lowest
19 km/h
1998-09-08
Precip
Wettest
152 mm
1995
Driest
1 mm
2017
See Sydney's live weather grade →
Visiting Sydney in September? See how its comfort stacks up against where you live.
Compare Sydney with your city →