Southern Harbour Weather Forecast

    • 22
    • 38

    Sunny

    • 25
    • 38

    Sunny

    • 19
    • 28

    Becoming windy. Mostly sunny

    • 16
    • 23

    Becoming windy. Cloudy

    • 14
    • 23

    Possible shower. Windy

    • 13
    • 24

    Partly cloudy

    • 16
    • 27

    Sunny

Today 22 Dec Perth

Sunny. Winds easterly 25 to 40 km/h, easing inland and turning south to southwesterly 25 to 35 km/h near the coast in the early afternoon, then tending east to southeasterly 15 to 25 km/h throughout in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly 15 to 20 knots turning southerly 15 to 25 knots in the late morning.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly around 1 metre, increasing to 1 to 1.5 metres during the morning.
Weather
Sunny.
Weather Situation
A firm ridge to the south is directing easterly winds, with sea breezes developing during the day. A trough will remain to the east, but will move offshore on Monday morning before moving inland ahead of a weak cold front later in the day. The front will brush past the south coast early Tuesday and will be followed by a strengthening ridge from the Indian Ocean.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

December Temperature

Garden Island (12km)

  • Lowest 2 December, 2024

    15.5 °C

  • Average December

    21.9 °C

  • Highest 11 December, 2024

    34.6 °C

Climate (2019–Present)

Garden Island (12km)

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  • Average Low 2019–2024

    15.2 °C

  • Average 2019–2024

    18.9 °C

  • Average High 2019–2024

    23.3 °C
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