Mandurah in September
So, what's Mandurah actually like in September? In a word: fresh. It's spring, and the days are averaging 19.4 degrees.
Daytime highs average 19.4 degrees, dropping to 10.9 degrees overnight. That's a 8-degree swing between day and night. It's cool but manageable. A jumper handles most of it.
September is 4.4 degrees cooler than Mandurah's yearly average.
The rain data says 37mm over 5 days. Nothing dramatic.
Sunshine-wise, September delivers around 19.6 MJ/m2 of daily solar radiation. UV sits in the very high category. You'll want SPF 50+ and a decent hat.
September scores a respectable 7.4/10 for overall comfort.
For your suitcase: layers you can peel on and off, 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
- A light rain jacket just in case
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How September in Mandurah stacks up against major cities around the world.
About 1 degrees cooler and considerably drier.
About 7 degrees cooler and considerably drier.
About 8 degrees cooler and considerably drier.
How September Compares
Mandurah's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 29.6 | 18.8 | 4mm | 7.5 |
| Feb | 32.1 | 19.8 | 2mm | 5.8 |
| Mar | 28.4 | 16.8 | 9mm | 8.2 |
| Apr | 26.9 | 15.3 | 1mm | 8.9 |
| May | 22.6 | 14.3 | 113mm | 8.0 |
| Jun | 18.2 | 11.4 | 114mm | 4.3 |
| Jul | 17.5 | 11.0 | 160mm | 3.3 |
| Aug | 17.6 | 12.4 | 159mm | 3.6 |
| Sep | 19.4 | 10.9 | 37mm | 7.4 |
| Oct | 21.0 | 13.1 | 35mm | 8.7 |
| Nov | 23.7 | 14.3 | 30mm | 10.0 |
| Dec | 28.1 | 17.6 | 4mm | 8.6 |