Rottnest Island Weather Forecast

    • 20
    • 31

    Sunny

    • 22
    • 27

    Shower or two

    • 19
    • 25

    Becoming windy. Mostly sunny

    • 19
    • 27

    Sunny

    • 23
    • 29

    Sunny

    • 23
    • 30

    Mostly sunny

    • 23
    • 29

    Possible shower

Today 16 Jan Lower West

Sunny. Winds easterly 25 to 35 km/h tending north to northeasterly 20 to 30 km/h in the morning then tending south to southwesterly 15 to 25 km/h in the evening. Daytime maximum temperatures 37 to 42.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable about 10 knots becoming southerly 10 to 15 knots in the early afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Weather
Sunny.
Weather Situation
A ridge lies along the south coast with a broad trough near the west coast. The west coast trough will deepen on Thursday before moving inland on Friday ahead of a weak cold front. A new ridge develops rapidly to the south on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Rottnest Island Temperature Statistics View More

January Temperature

Rottnest Island (3km)

  • Lowest 15 January, 2025

    16.6 °C

  • Average January

    21.7 °C

  • Highest 6 January, 2025

    34.3 °C

Climate (2020–Present)

Rottnest Island (3km)

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  • Average Low 2020–2025

    16 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.7 °C
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