Thredbo in September
If September is your window for visiting Thredbo, here's what the climate data says you can expect.
Expect the mercury to hit around 6.8 degrees during the day and settle at -1.0 degrees after dark. The temperature stays pretty consistent through the day. Those mornings will have you reaching for a proper jacket.
At 6.8 degrees, September sits 4.7 degrees below the annual average of 11.5 degrees.
You're looking at 95mm of rain across 13 days in a typical September. Moderate, often falling in a few good dumps rather than constant drizzle.
Solar exposure averages 15.9 MJ/m2 per day in September, with UV levels in the very high range. You'll want SPF 50+ and a decent hat.
With a Comfort Score of 1.0/10, September is not the most comfortable time to visit.
For your suitcase: warm layers including a coat, waterproof gear, and serious sun protection.
Check the data table below for the full picture, or compare Thredbo in September with another destination.
September at a Glance
Temperature Range
Daily temperature range in September. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Winter clothing including a proper coat
- A warm jumper or fleece for cool mornings and evenings
- Thermal undergarments for cold nights
- A waterproof jacket or compact umbrella
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How September in Thredbo stacks up against major cities around the world.
About 13 degrees cooler and considerably wetter.
About 19 degrees cooler and considerably drier.
About 20 degrees cooler and considerably drier.
How September Compares
Thredbo's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 18.4 | 9.3 | 165mm | 5.7 |
| Feb | 19.5 | 9.2 | 42mm | 7.7 |
| Mar | 17.6 | 7.5 | 38mm | 6.2 |
| Apr | 11.0 | 2.7 | 89mm | 1.0 |
| May | 8.1 | 0.7 | 87mm | 1.0 |
| Jun | 2.5 | -3.3 | 112mm | 1.0 |
| Jul | 2.1 | -4.1 | 123mm | 1.0 |
| Aug | 5.1 | -2.1 | 68mm | 1.0 |
| Sep | 6.8 | -1.0 | 95mm | 1.0 |
| Oct | 11.9 | 2.4 | 77mm | 1.1 |
| Nov | 16.3 | 6.3 | 182mm | 4.3 |
| Dec | 18.6 | 7.1 | 66mm | 6.8 |