Phillip Island in September
Planning a trip to Phillip Island in September? Here's the honest weather briefing for what spring looks like on the ground.
Expect the mercury to hit around 15.6 degrees during the day and settle at 10.6 degrees after dark. The temperature stays pretty consistent through the day. Manageable with a decent layer, and you'll warm up by midday.
September is 2.7 degrees cooler than Phillip Island's yearly average.
Rainfall in September averages 55mm over about 16 days. That means roughly a 53% chance of rain on any given day, so definitely bring rain gear.
Solar exposure averages 13.1 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 3.4/10 on our Comfort Score. It's the tough end of the year weather-wise.
For your suitcase: a decent jumper or fleece, and SPF 50+ sunscreen and a hat.
The full data breakdown is below. You can also see how other Australian cities compare 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
- A jumper or light cardigan for flexibility
- Proper rain gear for frequent showers
Coming From Overseas?
How September in Phillip Island stacks up against major cities around the world.
About 4 degrees cooler and considerably wetter.
About 10 degrees cooler and considerably drier.
About 11 degrees cooler and considerably drier.
How September Compares
Phillip Island's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 22.0 | 16.3 | 53mm | 9.1 |
| Feb | 23.5 | 16.4 | 7mm | 10.0 |
| Mar | 22.3 | 15.9 | 14mm | 9.7 |
| Apr | 17.4 | 13.4 | 88mm | 4.1 |
| May | 16.3 | 11.6 | 29mm | 3.9 |
| Jun | 13.5 | 9.8 | 30mm | 1.9 |
| Jul | 12.7 | 8.8 | 84mm | 1.0 |
| Aug | 16.0 | 10.0 | 39mm | 3.7 |
| Sep | 15.6 | 10.6 | 55mm | 3.4 |
| Oct | 17.8 | 11.7 | 67mm | 5.9 |
| Nov | 20.8 | 13.7 | 65mm | 8.4 |
| Dec | 21.8 | 15.1 | 82mm | 8.9 |