Rottnest Island Weather Forecast

    • 18
    • 22

    Partly cloudy

    • 17
    • 21

    Partly cloudy

    • 17
    • 25

    Sunny

    • 18
    • 25

    Mostly sunny

    • 20
    • 24

    Mostly sunny

    • 18
    • 23

    Partly cloudy

    • 17
    • 23

    Partly cloudy

Today 31 Mar Lower West

Cloudy. Medium chance of showers in the morning and early afternoon. Winds west to southwesterly 15 to 25 km/h becoming light in the evening. Overnight temperatures falling to between 12 and 16 with daytime temperatures reaching between 18 and 22.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly 15 to 20 knots becoming southerly below 10 knots in the evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Rottnest Island Temperature Statistics View More

March Temperature

Rottnest Island (3km)

  • Lowest 11 March, 2026

    15.1 °C

  • Average March

    21.7 °C

  • Highest 18 March, 2026

    36.3 °C

Climate (2021–Present)

Rottnest Island (3km)

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  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
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