Perth Weather Forecast
- 7
- 21
Possible morning shower
- 7
- 23
Sunny
- 9
- 22
Possible shower developing
- 8
- 20
Mostly sunny
- 5
- 20
Mostly sunny
- 8
- 21
Showers
- 9
- 20
Showers
Today 20 Aug Perth
Partly cloudy. Medium chance of showers in the morning. Light winds.
Melville Waters
- Wind
- Northeasterly below 10 knots becoming west to southwesterly in the middle of the day then becoming south to southeasterly in the evening.
- Weather
- Partly cloudy.
- Weather Situation
- A weak ridge lies across southern WA. A weak trough will deepen down the west coast from late Friday, pushing inland later on Saturday ahead of another weak front which is slated to reach the lower west coast during Sunday.
Perth Temperature Statistics View More
August Temperature
Perth Metro (4km)
Lowest 11 August, 2026
2.5 °CAverage August
13 °CHighest 3 August, 2026
25.3 °C
Climate (2021–2026)
Perth Metro (4km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
18.8 °CAverage High 2021–2026
25.4 °C