Wonthaggi in September
If September is your window for visiting Wonthaggi, here's what the climate data says you can expect.
Daytime highs average 15.1 degrees, dropping to 10.1 degrees overnight. That's a 5-degree swing between day and night. It's cool but manageable. A jumper handles most of it.
At 15.1 degrees, September sits 3.0 degrees below the annual average of 18.1 degrees.
You're looking at 104mm of rain across 20 days in a typical September. Moderate, often falling in a few good dumps rather than constant drizzle.
Solar exposure averages 12.3 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 2.4/10 on our Comfort Score. It's the tough end of the year weather-wise.
Packing tip: bring a decent jumper or fleece, waterproof gear, and SPF 50+ sunscreen and a hat.
Check the data table below for the full picture, or compare Wonthaggi 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
- A jumper or light cardigan for flexibility
- A waterproof jacket or compact umbrella
Coming From Overseas?
How September in Wonthaggi stacks up against major cities around the world.
About 5 degrees cooler and considerably wetter.
About 11 degrees cooler and considerably wetter.
About 12 degrees cooler and considerably drier.
How September Compares
Wonthaggi's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 22.1 | 15.2 | 71mm | 8.8 |
| Feb | 23.1 | 15.2 | 10mm | 10.0 |
| Mar | 22.4 | 15.0 | 17mm | 9.5 |
| Apr | 17.2 | 12.3 | 107mm | 3.7 |
| May | 16.3 | 10.3 | 40mm | 3.7 |
| Jun | 12.9 | 8.5 | 43mm | 1.0 |
| Jul | 12.6 | 7.7 | 100mm | 1.0 |
| Aug | 16.0 | 9.3 | 54mm | 3.5 |
| Sep | 15.1 | 10.1 | 104mm | 2.4 |
| Oct | 17.4 | 10.7 | 96mm | 5.0 |
| Nov | 20.3 | 12.8 | 74mm | 7.7 |
| Dec | 21.4 | 14.4 | 77mm | 8.5 |