Porpoise Bay Weather Forecast

    • 18
    • 25

    Partly cloudy

    • 17
    • 24

    Mostly sunny

    • 16
    • 23

    Mostly sunny

    • 18
    • 23

    Partly cloudy

    • 17
    • 21

    Shower or two. Becoming windy

    • 16
    • 21

    Wind easing. Partly cloudy

    • 14
    • 21

    Cloud clearing

Today 19 Nov Lower West

Partly cloudy. Medium chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds east to southeasterly 20 to 30 km/h. Overnight temperatures falling to around 16 with daytime temperatures reaching around 30.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly 10 to 15 knots turning southerly in the middle of the day then tending southeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning, then increasing to 1 to 1.5 metres by early evening.
Weather
Partly cloudy. The chance of a thunderstorm.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

November Temperature

Rottnest Island (3km)

  • Lowest 2 November, 2025

    11.9 °C

  • Average November

    19.1 °C

  • Highest 11 November, 2025

    31.5 °C

Climate (2020–Present)

Rottnest Island (3km)

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  • Average Low 2020–2025

    16 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    22.8 °C
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