Granite Island Weather Forecast

    • 8
    • 15

    Possible shower

    • 8
    • 16

    Possible shower

    • 8
    • 17

    Possible shower

    • 9
    • 16

    Partly cloudy

    • 7
    • 19

    Shower or two

    • 12
    • 19

    Shower or two

    • 9
    • 19

    Possible shower

Today 31 Aug Mount Lofty Ranges

Cloudy. Medium chance of showers, most likely in the late morning and afternoon. Winds westerly 15 to 25 km/h becoming light in the evening. Daytime maximum temperatures between 11 and 15.

South Central Coastal Waters

Wind
Westerly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy. 60% chance of showers.
Weather Situation
A high pressure system has been moving slowly eastwards to be over South Australia from today through to Wednesday. A westerly flow will continue for coastal areas of SA on the southern flank of the high pressure system.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Island Temperature Statistics View More

August Temperature

Encounter Bay (2km)

  • Lowest 3 August, 2025

    0.8 °C

  • Average August

    11.3 °C

  • Highest 11 August, 2025

    21.2 °C

Climate (2020–Present)

Encounter Bay (2km)

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  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    15.1 °C

  • Average High 2020–2025

    20.6 °C
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