Golden Bay Weather Forecast

    • 14
    • 20

    Shower or two

    • 12
    • 19

    Showers increasing

    • 14
    • 18

    Showers easing

    • 10
    • 18

    Partly cloudy

    • 10
    • 20

    Sunny

    • 11
    • 21

    Sunny

    • 12
    • 20

    Mostly sunny

Today 28 Sep Mandurah

Partly cloudy. Medium chance of showers, becoming less likely early this evening. Winds westerly 20 to 25 km/h tending southwesterly 20 to 30 km/h in the early afternoon then tending southerly 15 to 20 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to southwesterly 10 to 15 knots tending south to southwesterly 15 to 20 knots in the afternoon.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Partly cloudy. 50% chance of showers.
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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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Golden Bay Temperature Statistics View More

September Temperature

Mandurah (11km)

  • Lowest 1 September, 2026

    10.4 °C

  • Average September

    16.7 °C

  • Highest 16 September, 2026

    26.9 °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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