The Basin Weather Forecast

    • 22
    • 29

    Windy. Mostly sunny

    • 19
    • 24

    Windy. Partly cloudy

    • 17
    • 23

    Wind easing. Sunny

    • 19
    • 25

    Shower or two

    • 18
    • 23

    Becoming windy. Partly cloudy

    • 16
    • 25

    Windy. Sunny

    • 18
    • 26

    Windy. Sunny

Today 22 Jan Lower West

Sunny. Winds southwesterly 25 to 35 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly 15 to 20 knots turning southerly in the evening.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly around 1 metre.
Weather
Mostly sunny.
Weather Situation
A trough moves across the southwest ahead of a weak cold front brushing the south coast on Friday. A weak ridge will then form in the southwest before another cold front approaches over the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Basin Temperature Statistics View More

January Temperature

Rottnest Island (3km)

  • Lowest 18 January, 2026

    15.9 °C

  • Average January

    22.3 °C

  • Highest 20 January, 2026

    32.3 °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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