Porpoise Bay Weather Forecast

    • 11
    • 19

    Sunny

    • 13
    • 19

    Mostly sunny

    • 14
    • 20

    Shower or two

    • 12
    • 16

    Shower or two

    • 9
    • 18

    Sunny

    • 13
    • 20

    Shower or two

    • 14
    • 19

    Showers

Today 29 Jul Lower West

Sunny. Winds northeasterly 15 to 20 km/h becoming light in the early afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to northeasterly about 10 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 1 to 1.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge lies to the south, weakening on Friday ahead of the next cold front moving over the area later Friday and early Saturday morning. A ridge will rapidly developing in the wake of the cold front over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Porpoise Bay Temperature Statistics View More

July Temperature

Rottnest Island (3km)

  • Lowest 1 July, 2026

    9.9 °C

  • Average July

    15.4 °C

  • Highest 15 July, 2026

    21.8 °C

Climate (2021–2026)

Rottnest Island (3km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    16.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    22.8 °C
Get WillyWeather+ to remove ads