Carnac Island Weather Forecast

    • 17
    • 23

    Showers

    • 16
    • 21

    Early shower or two

    • 13
    • 21

    Partly cloudy

    • 13
    • 23

    Showers increasing. Windy

    • 14
    • 19

    Shower or two. Wind easing

    • 11
    • 20

    Cloudy

    • 15
    • 21

    Showers easing

Today 17 Apr Perth

Partly cloudy. High chance of showers in the southwest, medium chance elsewhere. Winds west to northwesterly 20 to 30 km/h.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
West to northwesterly 15 to 20 knots increasing to 25 knots before tending west to southwesterly 15 to 20 knots in the late evening. Winds reaching up to 30 knots in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly around 1 metre.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm early this evening.
Weather Situation
A cold front approaches the southwest, moving over the coast during Friday night. A ridge will develop over southern parts ahead of the next cold front Monday night.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Carnac Island Temperature Statistics View More

April Temperature

Garden Island (13km)

  • Lowest 8 April, 2026

    13.1 °C

  • Average April

    19.3 °C

  • Highest 3 April, 2026

    28.7 °C

Climate (2021–Present)

Garden Island (13km)

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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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