City of York Bay Weather Forecast

    • 13
    • 19

    Possible shower

    • 14
    • 19

    Showers

    • 14
    • 19

    Shower or two

    • 14
    • 19

    Showers easing

    • 12
    • 18

    Cloud clearing

    • 13
    • 19

    Sunny

    • 14
    • 19

    Sunny

Today 27 Sep Lower West

Partly cloudy. High chance of showers, becoming less likely in the late afternoon and evening. The chance of a thunderstorm in the morning and afternoon, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding inland. Light winds becoming westerly 15 to 20 km/h in the early afternoon then becoming light in the evening. Daytime maximum temperatures between 19 and 22.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
South to southeasterly below 10 knots becoming west to southwesterly in the middle of the day.
Seas
Below 0.5 metres.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres around midday.
Weather
Partly cloudy. The chance of a thunderstorm in the morning and afternoon.
Weather Situation
A trough and low close to the west coast today is bringing light winds on Sunday. On Monday the low will slip south of the state and the trough moves east. A cold front will approach on Tuesday and move through during Wednesday. A ridge will lie over the area on Thursday,
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

City of York Bay Temperature Statistics View More

September Temperature

Rottnest Island (1km)

  • Lowest 9 September, 2026

    11.5 °C

  • Average September

    16.5 °C

  • Highest 16 September, 2026

    27.8 °C

Climate (2021–2026)

Rottnest Island (1km)

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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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