Perth Weather Forecast
- 13
- 20
Possible shower
- 14
- 22
Shower or two
- 12
- 23
Sunny
- 11
- 22
Partly cloudy
- 12
- 22
Mostly sunny
- 11
- 22
Partly cloudy
- 12
- 21
Shower or two
Today 19 Sep Perth
Cloudy. Medium chance of showers about the southern suburbs, slight chance elsewhere. Winds westerly 25 to 40 km/h decreasing to 20 to 30 km/h in the late afternoon then becoming light in the late evening.
Melville Waters
- Wind
- Westerly 15 to 20 knots decreasing to about 10 knots in the evening.
- Weather
- Cloudy.
- Weather Situation
- A cold front moved across the local waters this morning, with a new ridge developing in it's wake. The ridge weakens Monday, and strengthens again on Tuesday.
Perth Temperature Statistics View More
September Temperature
Perth Metro (4km)
Lowest 1 September, 2026
8.3 °CAverage September
16.9 °CHighest 16 September, 2026
30.3 °C
Climate (2021–2026)
Perth Metro (4km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
25.5 °C