Carnac Island Weather Forecast

    • 17
    • 23

    Showers developing

    • 16
    • 21

    Shower or two

    • 13
    • 21

    Partly cloudy

    • 13
    • 22

    Showers increasing

    • 14
    • 19

    Showers easing. Wind easing

    • 11
    • 21

    Cloudy

    • 15
    • 21

    Showers

Today 17 Apr Perth

Partly cloudy. The chance of smoke haze this morning. High chance of showers in the southwest, medium chance elsewhere, most likely in the evening. The chance of a thunderstorm about the southern suburbs during this evening. Light winds becoming westerly 20 to 30 km/h in the morning then tending northwesterly 15 to 25 km/h in the evening.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Variable below 10 knots becoming west to southwesterly 10 to 15 knots in the morning then tending west to northwesterly 15 to 20 knots in the middle of the day.
Seas
Below 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 during the morning.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm during this evening.
Weather Situation
A ridge sits over the Local Waters ahead of a cold front tonight. A ridge will develop momentarily over southern parts ahead of the next cold front Monday night.
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  • 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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