Swan River - Rocky Bay Weather Forecast

    • 25
    • 41

    Mostly sunny

    • 20
    • 24

    Becoming windy. Partly cloudy

    • 14
    • 24

    Becoming windy. Partly cloudy

    • 15
    • 27

    Becoming windy. Sunny

    • 16
    • 29

    Sunny

    • 15
    • 29

    Sunny

    • 17
    • 30

    Sunny

Today 25 Dec Perth

Mostly sunny. The chance of a thunderstorm with little or no rainfall during this afternoon and early evening. Winds east to northeasterly 25 to 35 km/h turning north to northwesterly 15 to 25 km/h in the early afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to northeasterly 15 to 20 knots shifting west to northwesterly below 10 knots in the middle of the day then tending north to northwesterly 10 to 15 knots in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly around 1 metre.
Weather
Mostly sunny.
Weather Situation
A ridge over local waters will move inland today. A trough deepening offshore moves close to the west coast today before moving inland on this evening, ahead of a weak cold front brushing the south coast on Friday. A new ridge will develop along the southwest coast later on Friday and expand east along the south coast on the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swan River - Rocky Bay Temperature Statistics View More

December Temperature

Swanbourne (7km)

  • Lowest 21 December, 2025

    13.9 °C

  • Average December

    22.4 °C

  • Highest 14 December, 2025

    41.1 °C

Climate (2020–Present)

Swanbourne (7km)

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  • Average Low 2020–2025

    14.5 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    24.3 °C
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