Colac in September
September in Colac is peak spring, and the weather reflects it. You're looking at average daily highs of 14.8 degrees.
The average daily maximum is 14.8 degrees with overnight lows of 7.7 degrees. It's cool but manageable. A jumper handles most of it.
At 14.8 degrees, September sits 4.0 degrees below the annual average of 18.8 degrees.
You're looking at 87mm of rain across 17 days in a typical September. Moderate, often falling in a few good dumps rather than constant drizzle.
Sunshine-wise, September delivers around 11.2 MJ/m2 of daily solar radiation. UV sits in the high category. Sun protection is still a good idea, especially around midday.
With a Comfort Score of 2.1/10, September is not the most comfortable time to visit.
Packing tip: bring warm layers including a coat, a rain jacket or compact umbrella, and serious sun protection.
Check the data table below for the full picture, or compare Colac 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
- Warm layers including a heavy jacket or coat
- A warm jumper or fleece for cool mornings and evenings
- Proper rain gear for frequent showers
Coming From Overseas?
How September in Colac stacks up against major cities around the world.
About 5 degrees cooler and considerably wetter.
About 11 degrees cooler and considerably drier.
About 12 degrees cooler and considerably drier.
How September Compares
Colac's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 24.0 | 13.3 | 60mm | 10.0 |
| Feb | 26.2 | 11.9 | 2mm | 9.9 |
| Mar | 24.1 | 11.6 | 8mm | 10.0 |
| Apr | 16.9 | 8.6 | 44mm | 4.4 |
| May | 16.0 | 7.4 | 29mm | 3.7 |
| Jun | 12.5 | 4.6 | 27mm | 1.1 |
| Jul | 11.9 | 5.1 | 67mm | 1.0 |
| Aug | 15.7 | 7.4 | 69mm | 3.1 |
| Sep | 14.8 | 7.7 | 87mm | 2.1 |
| Oct | 18.4 | 8.2 | 60mm | 6.3 |
| Nov | 21.9 | 10.5 | 67mm | 9.1 |
| Dec | 23.0 | 11.8 | 43mm | 10.0 |