Perth Weather Forecast
- 12
- 26
Clear
- 11
- 25
Partly cloudy
- 9
- 23
Sunny
- 10
- 25
Sunny
- 10
- 24
Sunny morning. Shower or two
- 11
- 18
Showers easing
- 7
- 17
Shower or two
Today 18 May Perth
Clear. Light winds.
Melville Waters
- Wind
- Variable below 10 knots.
- Weather
- Clear.
- Weather Situation
- A high pressure ridge over southern WA is weakening. A weak cold front will cross the southwest coast on Monday, followed quickly by a new ridge of high pressure on Tuesday. A moderate cold front will approach southwest WA later Thursday.
Perth Temperature Statistics View More
May Temperature
Perth Metro (4km)
Lowest 7 May, 2025
9 °CAverage May
18.6 °CHighest 9 May, 2025
33.8 °C
Climate (2020–Present)
Perth Metro (4km)
Average Low 2020–2025
13.5 °CAverage 2020–2025
19 °CAverage High 2020–2025
25.5 °C