Salmon Bay Weather Forecast

    • 12
    • 18

    Mostly sunny

    • 13
    • 18

    Partly cloudy

    • 14
    • 18

    Showers. Windy

    • 11
    • 16

    Showers. Windy

    • 12
    • 17

    Shower or two. Wind easing

    • 10
    • 17

    Partly cloudy

    • 10
    • 17

    Mostly sunny

Today 3 Sep Lower West

Mostly sunny. Light winds becoming south to southwesterly 15 to 25 km/h in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 4 and 7 with daytime temperatures reaching around 20.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southeasterly 10 to 15 knots turning southerly 15 to 20 knots in the morning.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Mostly sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Salmon Bay Temperature Statistics View More

September Temperature

Rottnest Island (1km)

  • Lowest 1 September, 2025

    11.9 °C

  • Average September

    15.7 °C

  • Highest 1 September, 2025

    19.7 °C

Climate (2020–Present)

Rottnest Island (1km)

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  • Average Low 2020–2025

    16.1 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.8 °C
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