Swan River - Mounts Bay Weather Forecast

    • 21
    • 39

    Sunny

    • 22
    • 38

    Sunny

    • 23
    • 38

    Sunny

    • 18
    • 26

    Partly cloudy

    • 16
    • 28

    Mostly sunny

    • 16
    • 24

    Possible shower

    • 16
    • 24

    Cloud clearing

Today 20 Jan Perth

Sunny. Winds easterly 25 to 40 km/h tending southeast to southwesterly 15 to 25 km/h in the late afternoon then becoming southeasterly 20 to 30 km/h in the evening. Gusts to 70 km/h are possible about the hills and foothills in the morning

Melville Waters

Wind
Easterly 10 to 15 knots decreasing to below 10 knots in the morning then becoming south to southwesterly in the early afternoon.
Weather
Sunny.
Weather Situation
A ridge lies south of the State with a high pressure centre moving into the Bight during Tuesday and Wednesday. A west coast trough is developing and will deepen during Tuesday and Wednesday before moving inland on Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Mounts Bay Temperature Statistics View More

January Temperature

Perth Metro (6km)

  • Lowest 18 January, 2026

    14.7 °C

  • Average January

    24 °C

  • Highest 1 January, 2026

    37.3 °C

Climate (2021–Present)

Perth Metro (6km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    25.4 °C
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