Daytime highs, nighttime lows and the warmest cities in New South Wales, Australia this September.
New South Wales, Australia, a region in Australia, experiences maximum daytime temperatures in September ranging from 13°C (55°F) in Thredbo to 26°C (79°F) in Casino. Nighttime temperatures generally drop to 11°C (52°F) in Casino and 1°C (34°F) in Thredbo.
To get a sense of September's typical temperatures in the key spots of New South Wales, explore the map below. Click on a point for an in-depth look.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across New South Wales.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Average daytime highs in New South Wales, Australia during September reach about 20°C (68°F) in Sydney.
After dark, Sydney cools to about 13°C (55°F) on an average September night.
Data insights from our comprehensive database indicate that Casino is the city with the highest warmth. Daytime peaks average near 26°C (79°F), while the nights are characterized by a low temperature close to 11°C (52°F).
For the month of September, Thredbo is the most temperate city in New South Wales, Australia based on our records. Highs average 13°C (55°F) and nighttime temperatures dip to around 1°C (34°F).
Sydney enjoys approximately 234 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.
We have much more information about the climate in New South Wales.
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