Perth in July
If July is your window for visiting Perth, here's what the climate data says you can expect.
The average daily maximum is 18.0 degrees with overnight lows of 10.9 degrees. It's cool but manageable. A jumper handles most of it.
At 18.0 degrees, July sits 6.7 degrees below the annual average of 24.7 degrees.
You're looking at 154mm of rain across 17 days in a typical July. That's serious rainfall.
Sunshine-wise, July delivers around 10.4 MJ/m2 of daily solar radiation. UV sits in the moderate category. Sunscreen is still wise, especially if you burn easily.
The Comfort Score is 4.0/10 for July. It's fine, but not the highlight of the calendar.
For your suitcase: a decent jumper or fleece, and waterproof gear.
Check the data table below for the full picture, or compare Perth in July with another destination.
July at a Glance
Temperature Range
Daily temperature range in July. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Layered clothing for mild to cool conditions
- A waterproof jacket or compact umbrella
Coming From Overseas?
How July in Perth stacks up against major cities around the world.
About 6 degrees cooler and considerably wetter.
About 13 degrees cooler and considerably wetter.
About 12 degrees cooler and considerably drier.
How July Compares
Perth's monthly climate at a glance. July is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 30.2 | 19.1 | 1mm | 7.2 |
| Feb | 33.2 | 20.5 | 18mm | 4.8 |
| Mar | 29.3 | 17.4 | 4mm | 7.6 |
| Apr | 27.5 | 15.9 | 20mm | 8.2 |
| May | 24.4 | 14.6 | 94mm | 9.0 |
| Jun | 18.7 | 11.2 | 113mm | 4.9 |
| Jul | 18.0 | 10.9 | 154mm | 4.0 |
| Aug | 18.2 | 12.2 | 168mm | 4.1 |
| Sep | 20.6 | 11.1 | 27mm | 8.3 |
| Oct | 22.4 | 13.1 | 43mm | 9.7 |
| Nov | 24.9 | 14.9 | 25mm | 10.0 |
| Dec | 29.5 | 18.9 | 6mm | 7.5 |