Northern Trestle Bridge Weather Forecast

    • 10
    • 20

    Sunny

    • 12
    • 19

    Partly cloudy

    • 11
    • 18

    Mostly sunny

    • 8
    • 17

    Partly cloudy

    • 12
    • 19

    Showers increasing

    • 14
    • 17

    Showers

    • 9
    • 18

    Shower or two

Today 21 Aug Perth

Sunny. Light winds.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southerly 10 to 15 knots tending southeasterly in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2.5 metres.
Weather
Sunny.
Weather Situation
A weak ridge lies across southern WA. A trough is deepening down the west coast and will move inland on Saturday. A weak cold front will cross the southwest corner of the state early on Sunday ahead of another ridge which will extend across the southern half of the state on Sunday and Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Northern Trestle Bridge Temperature Statistics View More

August Temperature

Garden Island (1km)

  • Lowest 11 August, 2026

    7.7 °C

  • Average August

    14.7 °C

  • Highest 16 August, 2026

    23.7 °C

Climate (2021–2026)

Garden Island (1km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18.9 °C

  • Average High 2021–2026

    23.3 °C
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