Wannanup - Oceanside Weather Forecast

    • 11
    • 21

    Showers increasing

    • 11
    • 18

    Partly cloudy

    • 8
    • 17

    Sunny

    • 9
    • 20

    Mostly sunny

    • 11
    • 21

    Sunny

    • 13
    • 21

    Partly cloudy

    • 14
    • 21

    Showers

Today 21 May Mandurah

Mostly sunny morning. High chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm in the afternoon. Light winds becoming southwesterly 20 to 30 km/h in the middle of the day then tending southerly in the late afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots becoming southwesterly 10 to 15 knots in the middle of the day then tending southerly 15 to 25 knots in the early afternoon.
Seas
Below 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm in the afternoon.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Wannanup - Oceanside Temperature Statistics View More

May Temperature

Mandurah (10km)

  • Lowest 2 May, 2026

    9.1 °C

  • Average May

    16.6 °C

  • Highest 8 May, 2026

    23.2 °C

Climate (2021–Present)

Mandurah (10km)

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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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