Seal Island Weather Forecast

    • 20
    • 26

    Partly cloudy

    • 15
    • 27

    Sunny

    • 18
    • 33

    Sunny

    • 23
    • 40

    Sunny

    • 25
    • 37

    Sunny

    • 23
    • 33

    Cloud clearing

Today 17 Jan Perth

Sunny. Winds southwesterly 20 to 30 km/h becoming light in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southwesterly 15 to 20 knots.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening.
1st Swell
Southwesterly 1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

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Seal Island Temperature Statistics View More

January Temperature

Garden Island (5km)

  • Lowest 11 January, 2026

    16.3 °C

  • Average January

    22.9 °C

  • Highest 1 January, 2026

    31.8 °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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