Hillarys Boat Harbour Weather Forecast

    • 18
    • 33

    Sunny

    • 21
    • 37

    Wind easing. Sunny

    • 25
    • 38

    Mostly sunny

    • 20
    • 26

    Partly cloudy

    • 14
    • 28

    Becoming windy. Sunny

    • 16
    • 29

    Becoming windy. Sunny

    • 16
    • 30

    Sunny

Today 23 Dec Perth

Sunny. Winds east to southeasterly 25 to 40 km/h decreasing to 25 to 35 km/h in the late evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
East to southeasterly 10 to 15 knots turning southerly 15 to 20 knots in the middle of the day then tending southeasterly in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Sunny.
Weather Situation
A ridge persists over local waters. A west coast trough is deepening and will move offshore on Wednesday before moving inland on Friday ahead of a weak cold front.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Hillarys Boat Harbour Temperature Statistics View More

December Temperature

Swanbourne (15km)

  • Lowest 21 December, 2025

    13.9 °C

  • Average December

    22.2 °C

  • Highest 14 December, 2025

    41.1 °C

Climate (2020–Present)

Swanbourne (15km)

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  • Average Low 2020–2025

    14.5 °C

  • Average 2020–2025

    18.9 °C

  • Average High 2020–2025

    24.3 °C
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