Granite Island Weather Forecast

    • 13
    • 22

    Possible shower

    • 13
    • 21

    Cloudy

    • 13
    • 25

    Cloud clearing

    • 15
    • 34

    Sunny

    • 21
    • 41

    Late shower or two. Windy

    • 15
    • 23

    Shower or two. Windy

    • 13
    • 24

    Possible shower

Today 22 Dec Mount Lofty Ranges

Partly cloudy. Slight chance of a shower in the south, most likely in the late afternoon and evening. Near zero chance of rain elsewhere. Winds south to southwesterly 25 to 40 km/h. Daytime maximum temperatures in the low to mid 20s.

South Central Coastal Waters

Wind
Southwesterly 15 to 25 knots turning southerly in the early afternoon.
Seas
Around 1 metre, increasing to 1.5 to 2 metres around midday.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Cloudy.
Weather Situation
A ridge of high pressure extends over waters to the south of the state and will persist over the weekend, maintaining fresh southerly winds over coastal waters. A weak front embedded in the southerly flow will clip the southeast today. A high pressure system will move over the Bight early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Island Temperature Statistics View More

December Temperature

Encounter Bay (2km)

  • Lowest 4 December, 2024

    6.9 °C

  • Average December

    20.6 °C

  • Highest 5 December, 2024

    38.3 °C

Climate (2019–Present)

Encounter Bay (2km)

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  • Average Low 2019–2024

    10.2 °C

  • Average 2019–2024

    14.9 °C

  • Average High 2019–2024

    20.3 °C
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