Bruny Island in September
September is right in the heart of spring for Bruny Island, and the weather has a definite personality this time of year.
Daytime highs average 13.4 degrees, dropping to 7.7 degrees overnight. That's a 6-degree swing between day and night. It's cool but manageable. A jumper handles most of it.
At 13.4 degrees, September sits 2.7 degrees below the annual average of 16.1 degrees.
The rain data says 78mm over 17 days. A decent amount, but not relentless.
Solar exposure averages 12.1 MJ/m2 per day in September, with UV levels in the high range. Sun protection is still a good idea, especially around midday.
September scores 1.6/10 on our Comfort Score. It's the tough end of the year weather-wise.
For your suitcase: warm layers including a coat, waterproof gear, and serious sun protection.
Scroll down for the detailed climate data, or explore what nearby cities are like in September.
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
- Extra layers for chilly nights
- Proper rain gear for frequent showers
Coming From Overseas?
How September in Bruny Island stacks up against major cities around the world.
About 7 degrees cooler and considerably wetter.
About 13 degrees cooler and considerably drier.
About 14 degrees cooler and considerably drier.
How September Compares
Bruny Island's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 20.2 | 13.3 | 72mm | 7.6 |
| Feb | 21.0 | 13.4 | 25mm | 8.7 |
| Mar | 19.2 | 12.5 | 38mm | 6.8 |
| Apr | 16.2 | 11.1 | 56mm | 3.8 |
| May | 14.1 | 9.7 | 44mm | 1.9 |
| Jun | 11.8 | 8.1 | 49mm | 1.0 |
| Jul | 11.7 | 7.2 | 90mm | 1.0 |
| Aug | 13.6 | 8.7 | 101mm | 1.0 |
| Sep | 13.4 | 7.7 | 78mm | 1.6 |
| Oct | 15.3 | 8.8 | 67mm | 3.8 |
| Nov | 17.5 | 10.4 | 72mm | 5.6 |
| Dec | 19.1 | 12.0 | 138mm | 6.2 |