Northern Harbour Weather Forecast

    • 9
    • 18

    Shower or two

    • 12
    • 19

    Showers

    • 11
    • 19

    Shower or two

    • 11
    • 19

    Possible morning shower

    • 10
    • 21

    Mostly sunny

    • 12
    • 24

    Sunny

    • 14
    • 26

    Sunny

Today 16 Sep Perth

Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. Light winds becoming northwesterly 15 to 20 km/h in the early afternoon.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots becoming variable about 10 knots before dawn then becoming northwesterly 15 to 20 knots in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 to 4 metres, decreasing to 2 to 3 metres during the morning.
Weather
Partly cloudy. 80% chance of showers.
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Northern Harbour Temperature Statistics View More

September Temperature

Jandakot Airport (12km)

  • Lowest 9 September, 2025

    2.2 °C

  • Average September

    13.1 °C

  • Highest 12 September, 2025

    26.3 °C

Climate (2020–Present)

Jandakot Airport (12km)

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  • Average Low 2020–2025

    12.6 °C

  • Average 2020–2025

    18.6 °C

  • Average High 2020–2025

    25.4 °C
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