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.
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  • Temperature Forecast Bureau of Meteorology

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Perth Temperature Statistics View More

May Temperature

Perth Metro (4km)

  • Lowest 7 May, 2025

    9 °C

  • Average May

    18.6 °C

  • Highest 9 May, 2025

    33.8 °C

Climate (2020–Present)

Perth Metro (4km)

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  • Average Low 2020–2025

    13.5 °C

  • Average 2020–2025

    19 °C

  • Average High 2020–2025

    25.5 °C
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