Granite Island Weather Forecast

    • 2
    • 16

    Partly cloudy

    • 6
    • 17

    Shower or two

    • 5
    • 18

    Showers increasing

    • 10
    • 17

    Showers easing

    • 9
    • 15

    Rain

    • 7
    • 16

    Showers

    • 9
    • 15

    Showers

Today 5 Aug Mount Lofty Ranges

Partly cloudy. Light winds.

South Central Coastal Waters

Wind
North to northwesterly 10 to 15 knots.
Seas
Around 1 metre.
1st Swell
Southwesterly 2 metres.
Weather
Partly cloudy.
Weather Situation
A trough continues moving across southeast coastal parts of SA this evening into Thursday. A weak high pressure system centred over western NSW will slowly move east while maintaining a ridge over SA until the weekend. A strong cold front will begin to move into the Bight and track east over the state from Saturday into Sunday.
Graph Plots Open in Graphs

  • 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

    9.9 °C

  • Highest 2 August, 2026

    16.5 °C

Climate (2021–2026)

Encounter Bay (2km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.7 °C
Get WillyWeather+ to remove ads