Granite Island Weather Forecast

    • 14
    • 30

    Sunny

    • 16
    • 24

    Becoming windy. Partly cloudy

    • 16
    • 23

    Windy. Cloud clearing

    • 17
    • 27

    Mostly sunny

    • 17
    • 32

    Mostly sunny

    • 20
    • 33

    Sunny

    • 18
    • 24

    Partly cloudy

Today 4 Mar Mount Lofty Ranges

Sunny. Winds east to northeasterly 15 to 20 km/h tending southeast to southwesterly in the late afternoon then tending east to southeasterly in the late evening. Daytime maximum temperatures 30 to 35.

South Central Coastal Waters

Wind
Easterly 10 to 15 knots tending northeasterly in the morning then becoming variable about 10 knots in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
Weather
Sunny.
Weather Situation
A high pressure system near Tasmania extends a ridge back over waters south of SA. Another high will become established south of the Bight mid-week, then will move eastwards late in the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Island Temperature Statistics View More

March Temperature

Encounter Bay (2km)

  • Lowest 1 March, 2025

    11.9 °C

  • Average March

    17.6 °C

  • Highest 1 March, 2025

    23.8 °C

Climate (2020–Present)

Encounter Bay (2km)

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  • Average Low 2020–2025

    10.2 °C

  • Average 2020–2025

    14.9 °C

  • Average High 2020–2025

    20.4 °C
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