The Basin Weather Forecast

    • 13
    • 17

    Shower or two

    • 11
    • 17

    Partly cloudy

    • 10
    • 19

    Mostly sunny

    • 13
    • 19

    Sunny

    • 15
    • 20

    Shower or two

    • 13
    • 17

    Shower or two

    • 11
    • 17

    Partly cloudy

Today 27 Jul Lower West

Partly cloudy. Slight chance of a shower. Light winds. Daytime maximum temperatures between 16 and 19.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly 10 to 15 knots decreasing to about 10 knots in the middle of the day.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 to 3 metres, decreasing to 1.5 to 2 metres by early evening.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A new ridge will develop over the south today, persisting through to Friday when the next cold front is expected to move through.
Graph Plots Open in Graphs

  • 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

    15.6 °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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