Porpoise Bay Weather Forecast

    • 15
    • 19

    Showers. Windy

    • 14
    • 19

    Shower or two

    • 15
    • 19

    Shower or two

    • 13
    • 18

    Shower or two. Wind easing

    • 11
    • 19

    Cloud clearing

    • 12
    • 21

    Mostly sunny

    • 13
    • 22

    Sunny

Today 8 Oct Lower West

Cloudy. Very high chance of showers, most likely in the morning. Winds westerly 15 to 25 km/h increasing to 40 km/h before turning southwesterly 15 to 25 km/h in the evening. Overnight temperatures falling to around 13 with daytime temperatures reaching between 16 and 19.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to southwesterly 15 to 25 knots, reaching up to 30 knots in the late afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres during the morning.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Cloudy. Near 100% chance of showers.
Weather Situation
A front is crossing the southwest land division early on Thursday and will continue tracking east. Another cold front skims the southwest corner on Saturday, with a ridge strengthening in the wake of the front.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

October Temperature

Rottnest Island (3 km)

  • Lowest 2 October, 2026

    12.3 °C

  • Average October

    16.8 °C

  • Highest 2 October, 2026

    21.2 °C

Climate (2021–2026)

Rottnest Island (3 km)

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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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