The Basin Weather Forecast

    • 14
    • 17

    Partly cloudy

    • 10
    • 17

    Partly cloudy

    • 10
    • 17

    Sunny

    • 10
    • 18

    Mostly sunny

    • 12
    • 20

    Shower or two developing

    • 13
    • 17

    Showers

    • 12
    • 17

    Partly cloudy

Today 21 Jul Lower West

Partly cloudy. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots tending southeasterly in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A ridge is beginning to develop to the south today and will strengthen and move east during the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Basin Temperature Statistics View More

July Temperature

Rottnest Island (3km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.7 °C

  • Highest 15 July, 2026

    21.8 °C

Climate (2021–2026)

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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