Perth in March
March in Perth is peak autumn, and the weather reflects it. You're looking at average daily highs of 29.3 degrees.
Daytime highs average 29.3 degrees, dropping to 17.4 degrees overnight. That's a 12-degree swing between day and night. Comfortable during the day, with evenings that invite a light layer.
At 29.3 degrees, March runs 4.6 degrees above Perth's annual average of 24.7 degrees.
The rain data says 4mm over 1 days. That's barely a sprinkle.
Sunshine-wise, March delivers around 22.2 MJ/m2 of daily solar radiation. UV sits in the extreme category. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
The Comfort Score for March comes in at 7.6/10, solidly pleasant.
For your suitcase: a mix of short and long sleeves, and serious sun protection.
Being on the coast is a blessing in March. The afternoon sea breeze is nature's air conditioning.
Scroll down for the detailed climate data, or explore what nearby cities are like in March.
March at a Glance
Temperature Range
Daily temperature range in March. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- T-shirts and shorts for daytime
- Strong sun protection including a hat and SPF 50+
Coming From Overseas?
How March in Perth stacks up against major cities around the world.
About 17 degrees warmer and considerably drier.
About 19 degrees warmer and considerably drier.
About 15 degrees warmer and considerably drier.
How March Compares
Perth's monthly climate at a glance. March 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 |