The weather in Thredbo in September is very cold with temperatures between 0°C and 13°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Thredbo during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Thredbo can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Thredbo in September 2025.
If you’re planning to visit Thredbo in the near future, we highly recommend that you review the 14 day weather forecast for Thredbo before you arrive.
Temperatures
13° / 0°
Rainy Days
6
Snowy Days
1
Dry Days
23
Rainfall
108
mm
Sun Hours
10.4
Hrs
