Granite Island Weather Forecast

    • 5
    • 16

    Possible shower

    • 7
    • 16

    Shower or two

    • 7
    • 16

    Showers easing

    • 4
    • 15

    Partly cloudy

    • 6
    • 15

    Shower or two

    • 6
    • 15

    Shower or two

    • 4
    • 17

    Shower or two

Today 15 Jul Mount Lofty Ranges

Partly cloudy. Medium chance of showers, most likely later tonight. Light winds becoming west to southwesterly 15 to 20 km/h in the middle of the day then tending west to northwesterly in the late afternoon. Daytime maximum temperatures between 12 and 15.

South Central Coastal Waters

Wind
Southwesterly 10 to 15 knots turning westerly 15 to 25 knots in the morning.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A low pressure system will move eastwards across the pastoral districts during Tuesday. A high pressure ridge will move across the north mid-week and a cold front will move across the south on Thursday morning. Another cold front is expected to move across on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Island Temperature Statistics View More

July Temperature

Hindmarsh Island (17km)

  • Lowest 3 July, 2025

    5.1 °C

  • Average July

    11.8 °C

  • Highest 12 July, 2025

    17.6 °C

Climate (2020–Present)

Hindmarsh Island (17km)

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  • Average Low 2020–2025

    12 °C

  • Average 2020–2025

    15.7 °C

  • Average High 2020–2025

    20.6 °C
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