Wannanup - Oceanside Weather Forecast

    • 12
    • 19

    Shower or two

    • 14
    • 18

    Showers easing

    • 11
    • 19

    Partly cloudy

    • 11
    • 21

    Sunny

    • 10
    • 21

    Sunny

    • 11
    • 20

    Partly cloudy

    • 15
    • 20

    Partly cloudy

Today 29 Sep Mandurah

Cloudy. Medium chance of showers. Winds westerly 15 to 20 km/h becoming light in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Westerly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Cloudy. 60% chance of showers.
Weather Situation
A weak cold front will cross the west coast early Wednesday morning, followed by another weak front brushing the south coast on Wednesday night. A ridge will extend over southern WA from Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Wannanup - Oceanside Temperature Statistics View More

September Temperature

Garden Island (39km)

  • Lowest 1 September, 2026

    10.2 °C

  • Average September

    16.6 °C

  • Highest 16 September, 2026

    29.3 °C

Climate (2021–2026)

Garden Island (39km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    23.3 °C
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