Southern Harbour Weather Forecast

    • 13
    • 18

    Showers

    • 12
    • 17

    Possible morning storm. Showers

    • 11
    • 18

    Showers

    • 11
    • 17

    Early shower or two

    • 9
    • 18

    Partly cloudy

    • 8
    • 18

    Mostly sunny

    • 9
    • 20

    Shower or two developing

Today 29 Jun Perth

Cloudy. Very high chance of showers. The chance of a thunderstorm in the southwest in the evening. Light winds becoming west to northwesterly 20 to 30 km/h in the morning.

Perth Local Waters

Two Rocks to Dawesville, inshore from Rottnest Island
Wind
Southwesterly 10 to 15 knots tending northwest to southwesterly 15 to 25 knots before dawn. Winds reaching up to 30 knots in the evening.
Seas
Around 1 metre, increasing to 1.5 to 2 metres during the afternoon.
1st Swell
Southwesterly 2 to 3 metres, decreasing to 1.5 to 2 metres around midday, then tending west to southwesterly 1.5 to 2 metres by early evening.
Weather
Cloudy. Near 100% chance of showers. The chance of a thunderstorm in the evening.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Southern Harbour Temperature Statistics View More

June Temperature

Garden Island (12km)

  • Lowest 18 June, 2026

    6.5 °C

  • Average June

    15 °C

  • Highest 24 June, 2026

    21.3 °C

Climate (2021–2026)

Garden Island (12km)

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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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