Swan River - Perth Water Weather Forecast

    • 11
    • 25

    Mostly sunny

    • 10
    • 23

    Showers developing

    • 8
    • 20

    Mostly sunny

    • 5
    • 20

    Sunny

    • 6
    • 22

    Mostly sunny

    • 9
    • 24

    Sunny

    • 11
    • 24

    Shower or two

Today 20 May Perth

Mostly sunny. Winds northeasterly 15 to 25 km/h turning northwesterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon.

Melville Waters

Wind
Northeasterly below 10 knots becoming west to northwesterly in the middle of the day then becoming east to northeasterly in the evening.
Weather
Mostly sunny.
Weather Situation
A ridge will persist to the south until a weak cold front moves through during Thursday afternoon and evening. Another ridge develops to the southwest during Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Perth Water Temperature Statistics View More

May Temperature

Perth Metro (5km)

  • Lowest 2 May, 2026

    5 °C

  • Average May

    14.9 °C

  • Highest 12 May, 2026

    28.3 °C

Climate (2021–Present)

Perth Metro (5km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    25.4 °C
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