Granite Island Weather Forecast

    • 9
    • 19

    Sunny morning. Shower or two

    • 11
    • 17

    Showers easing. Wind easing

    • 7
    • 18

    Mostly sunny

    • 10
    • 22

    Shower or two

    • 12
    • 18

    Showers easing

    • 7
    • 18

    Partly cloudy

    • 9
    • 18

    Showers

Today 9 Jun Mount Lofty Ranges

Mostly sunny. Medium chance of showers in the south, slight chance elsewhere. Winds northerly 20 to 30 km/h increasing to 25 to 40 km/h in the morning. Overnight temperatures falling to around 9 with daytime temperatures reaching between 17 and 20.

South Central Coastal Waters

Wind
Northerly 20 to 30 knots, reaching up to 35 knots in the evening.
Seas
2 to 3 metres, increasing to 3 to 4 metres west of Kangaroo Island during the morning.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. 95% chance of showers. The chance of a thunderstorm in the evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Island Temperature Statistics View More

June Temperature

Encounter Bay (2km)

  • Lowest 7 June, 2026

    4.5 °C

  • Average June

    12.3 °C

  • Highest 1 June, 2026

    19.2 °C

Climate (2021–Present)

Encounter Bay (2km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.3 °C

  • Average High 2021–2026

    20.7 °C
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