The temperatures in Blacktown in September are comfortable with low of 11°C and and high up to 22°C.
The wather in Blacktown in September can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Blacktown in September 2025.
If you’re planning to visit Blacktown in the near future, we highly recommend that you review the 14 day weather forecast for Blacktown before you arrive.
Temperatures
22° / 11°
Rainy Days
2
Snowy Days
0
Dry Days
28
Rainfall
50
mm
Sun Hours
8.3
Hrs
