Seal Island Weather Forecast

    • 21
    • 37

    Clear

    • 26
    • 41

    Mostly sunny

    • 21
    • 25

    Possible shower. Windy

    • 15
    • 25

    Becoming windy. Partly cloudy

    • 15
    • 27

    Becoming windy. Sunny

    • 17
    • 30

    Sunny

    • 16
    • 31

    Sunny

Today 24 Dec Perth

Clear. Winds easterly 15 to 25 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 15 to 20 knots turning easterly 10 to 15 knots in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly below 1 metre.
Weather
Clear.
Weather Situation
A ridge over local waters will move inland on Thursday. A trough deepening offshore moves close to the west coast during Thursday before moving inland on Thursday evening, ahead of a weak cold front brushing the south coast on Friday. A new ridge will develop along the southwest coast later on Friday and expand east along the south coast on the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Seal Island Temperature Statistics View More

December Temperature

Garden Island (5km)

  • Lowest 21 December, 2025

    13.9 °C

  • Average December

    21.7 °C

  • Highest 14 December, 2025

    38.8 °C

Climate (2020–Present)

Garden Island (5km)

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  • Average Low 2020–2025

    15.2 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    23.4 °C
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