The climate in Sydney during September can be summarized as mild and damp.
September is in the fall / autumn in Sydney and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 9°C (48°F) is normal.
|Daytime temperature||18.1°C 64.5°F|
|Nightly temperature||9°C 48.1°F|
|Average temperature||13.5°C 56.3°F|
|Daily sunshine||5.9 hrs|
|Avg rainfall||109 mm 4.3 ins|
|Rainy days||12 days|
|Sea temperature||15.7°C 60.3°F|
|Windspeed||18.7kph 12 mph|
On average September is the 5th driest month of the year in Sydney with around 109mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sydney in September 2022.
|Hottest month:||August||22°C 71.6°F|
|Driest month:||July||89mm 3.5ins|
|Coldest month:||February||-2.1°C 28.2°F|
|Wettest month:||December||170mm 6.7ins|