Wilson Bay Weather Forecast

    • 21
    • 29

    Sunny

    • 22
    • 31

    Sunny

    • 23
    • 29

    Mostly sunny

    • 19
    • 24

    Becoming windy. Partly cloudy

    • 17
    • 23

    Mostly sunny

    • 19
    • 24

    Shower or two

    • 17
    • 23

    Becoming windy. Partly cloudy

Today 20 Jan Lower West

Sunny. Winds easterly 25 to 40 km/h decreasing to 20 to 30 km/h in the morning then turning southeasterly in the afternoon. Gusts to 70 km/h are possible about the hills and foothills in the morning. Daytime maximum temperatures around 40.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly 10 to 15 knots turning southerly 15 to 20 knots in the middle of the day then tending southeasterly 10 to 15 knots in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 2 to 3 metres, decreasing to 1.5 to 2 metres during the afternoon.
Weather
Sunny.
Weather Situation
A ridge lies south of the State with a high pressure centre moving into the Bight during Tuesday and Wednesday. A west coast trough is developing and will deepen during Tuesday and Wednesday before moving inland on Thursday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Wilson Bay Temperature Statistics View More

January Temperature

Rottnest Island (4km)

  • Lowest 18 January, 2026

    15.9 °C

  • Average January

    21.9 °C

  • Highest 1 January, 2026

    31.2 °C

Climate (2021–Present)

Rottnest Island (4km)

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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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