Golden Bay Weather Forecast

    • 21
    • 25

    Sunny

    • 16
    • 23

    Showers increasing

    • 15
    • 19

    Showers easing. Wind easing

    • 15
    • 19

    Possible shower

    • 13
    • 21

    Mostly sunny

    • 13
    • 20

    Shower or two

    • 14
    • 20

    Mostly sunny

Today 17 Sep Mandurah

Sunny. Winds northerly 15 to 25 km/h tending northwesterly in the middle of the day then becoming light in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
North to northwesterly 10 to 15 knots decreasing to about 10 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A trough extends down the west coast. From Thursday, the trough will become mobile and move inland, ahead of a cold front crossing the local waters on Friday before the next ridge begins to develop.
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Golden Bay Temperature Statistics View More

September Temperature

Mandurah (11km)

  • Lowest 1 September, 2026

    10.4 °C

  • Average September

    16.5 °C

  • Highest 15 September, 2026

    25.7 °C

Climate (2021–2026)

Mandurah (11km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    19.1 °C

  • Average High 2021–2026

    23.8 °C
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