Green Island Weather Forecast

    • 11
    • 17

    Shower or two

    • 13
    • 18

    Showers. Windy

    • 13
    • 17

    Shower or two

    • 13
    • 18

    Morning shower or two

    • 12
    • 18

    Cloud clearing

    • 13
    • 20

    Sunny

    • 15
    • 22

    Sunny

Today 16 Sep Lower West

Partly cloudy. High chance of showers in the south, medium chance elsewhere. Light winds becoming west to northwesterly 15 to 20 km/h in the middle of the day then tending north to northwesterly in the late evening. Daytime maximum temperatures between 16 and 19.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable about 10 knots becoming northwesterly 15 to 20 knots in the early afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 4 metres, decreasing to 2 to 3 metres during the morning.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
Southwesterly winds in the wake of a cold front continue to ease as a ridge builds about the central west coast. Another cold front will move into the southwest on Wednesday. From Thursday, a new ridge will begin strengthening over the central west.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Green Island Temperature Statistics View More

September Temperature

Rottnest Island (1km)

  • Lowest 8 September, 2025

    8.2 °C

  • Average September

    14.9 °C

  • Highest 12 September, 2025

    22.4 °C

Climate (2020–Present)

Rottnest Island (1km)

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  • Average Low 2020–2025

    16 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.8 °C
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