Granite Island Weather Forecast

    • 7
    • 16

    Partly cloudy

    • 7
    • 15

    Partly cloudy

    • 6
    • 19

    Partly cloudy

    • 9
    • 19

    Showers

    • 10
    • 19

    Showers easing

    • 8
    • 17

    Shower or two

    • 6
    • 15

    Shower or two

Today 15 Aug Mount Lofty Ranges

Partly cloudy. The chance of morning fog on the western slopes. Slight chance of a shower. Light winds becoming southeasterly 15 to 20 km/h in the evening. Overnight temperatures falling to around 8 with daytime temperatures reaching between 13 and 16.

South Central Coastal Waters

Wind
East to southeasterly below 10 knots increasing to 10 to 15 knots in the morning.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 to 4 metres, decreasing to 3 metres during the afternoon.
Weather
Partly cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Island Temperature Statistics View More

August Temperature

Encounter Bay (2km)

  • Lowest 1 August, 2026

    0.5 °C

  • Average August

    11.7 °C

  • Highest 7 August, 2026

    19.7 °C

Climate (2021–2026)

Encounter Bay (2km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.7 °C
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