Katanning in September
September is right in the heart of spring for Katanning, and the weather has a definite personality this time of year.
Daytime highs average 17.5 degrees, dropping to 7.1 degrees overnight. That's a 10-degree swing between day and night. Manageable with a decent layer, and you'll warm up by midday.
At 17.5 degrees, September sits 5.1 degrees below the annual average of 22.6 degrees.
You're looking at 19mm of rain across 4 days in a typical September. Dry as a bone, really.
Sunshine-wise, September delivers around 17.0 MJ/m2 of daily solar radiation. UV sits in the very high category. You'll want SPF 50+ and a decent hat.
The Comfort Score for September comes in at 6.0/10, solidly pleasant.
Packing tip: bring a decent jumper or fleece, and SPF 50+ sunscreen and a hat.
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
- Layered clothing for mild to cool conditions
- A warm jumper or fleece for cool mornings and evenings
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How September in Katanning stacks up against major cities around the world.
About 2 degrees cooler and considerably drier.
About 8 degrees cooler and considerably drier.
About 10 degrees cooler and considerably drier.
How September Compares
Katanning's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 29.4 | 14.9 | 29mm | 7.4 |
| Feb | 31.7 | 16.0 | 6mm | 6.0 |
| Mar | 25.9 | 13.7 | 11mm | 9.6 |
| Apr | 23.0 | 11.2 | 1mm | 10.0 |
| May | 20.7 | 10.8 | 25mm | 7.5 |
| Jun | 15.8 | 7.6 | 37mm | 3.6 |
| Jul | 15.3 | 7.2 | 80mm | 2.8 |
| Aug | 15.7 | 7.7 | 70mm | 3.1 |
| Sep | 17.5 | 7.1 | 19mm | 6.0 |
| Oct | 22.5 | 9.7 | 16mm | 10.0 |
| Nov | 24.3 | 10.7 | 20mm | 10.0 |
| Dec | 29.2 | 13.4 | 8mm | 7.8 |