Seal Island Weather Forecast

    • 13
    • 21

    Mostly sunny

    • 11
    • 23

    Sunny

    • 13
    • 23

    Mostly sunny

    • 13
    • 21

    Possible shower

    • 11
    • 20

    Sunny

    • 10
    • 19

    Sunny

    • 11
    • 20

    Partly cloudy

Today 18 May Perth

Mostly sunny. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly about 10 knots increasing to 10 to 15 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge lies over the region and will persist through the much of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Seal Island Temperature Statistics View More

May Temperature

Garden Island (5km)

  • Lowest 17 May, 2026

    8.4 °C

  • Average May

    16.6 °C

  • Highest 11 May, 2026

    26.2 °C

Climate (2021–Present)

Garden Island (5km)

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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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