Granite Island Weather Forecast

    • 12
    • 18

    Shower or two

    • 10
    • 17

    Shower or two

    • 11
    • 18

    Shower or two

    • 11
    • 19

    Partly cloudy

    • 9
    • 20

    Partly cloudy

    • 11
    • 20

    Partly cloudy

    • 9
    • 20

    Partly cloudy

Today 10 Apr Mount Lofty Ranges

Cloudy. High chance of showers, most likely from late this morning. Winds westerly 25 to 40 km/h. Daytime maximum temperatures between 15 and 18.

South Central Coastal Waters

Wind
Westerly 25 to 30 knots turning southwesterly 20 to 30 knots in the late afternoon.
Seas
2.5 to 3 metres.
1st Swell
Southwesterly 3 to 4 metres.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A low pressure trough will move across waters to the south today then a high pressure system will move across waters south of WA on Saturday to be centred over the Bight on Sunday. This high will move slowly eastwards early next week and a weak cold front will move over southern coastal areas.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Island Temperature Statistics View More

April Temperature

Encounter Bay (2km)

  • Lowest 8 April, 2026

    7 °C

  • Average April

    16 °C

  • Highest 6 April, 2026

    27.5 °C

Climate (2021–Present)

Encounter Bay (2km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.6 °C
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