Perth Weather Forecast

    • 12
    • 21

    Partly cloudy

    • 10
    • 20

    Showers increasing

    • 12
    • 19

    Showers easing

    • 9
    • 21

    Partly cloudy

    • 10
    • 23

    Sunny

    • 11
    • 23

    Sunny

    • 11
    • 22

    Mostly sunny

Today 28 Sep Perth

Partly cloudy. Slight chance of a shower. Winds south to southwesterly 15 to 20 km/h becoming light in the late evening.

Melville Waters

Wind
South to southwesterly below 10 knots.
Weather
Partly cloudy.
Weather Situation
A trough lies over southwest WA with a connected low south of the state. The trough is moving east as a ridge extends over the west coast. A cold front will cross the southwest corner of the state overnight on Tuesday with a ridge then dominating the synoptic pattern for the remainder of the working week.
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Perth Temperature Statistics View More

September Temperature

Perth Metro (4km)

  • Lowest 1 September, 2026

    8.3 °C

  • Average September

    16.5 °C

  • Highest 16 September, 2026

    30.3 °C

Climate (2021–2026)

Perth Metro (4km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    25.5 °C
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