Moonta Bay Weather Forecast

    • 7
    • 16

    Partly cloudy

    • 7
    • 16

    Partly cloudy

    • 5
    • 18

    Partly cloudy

    • 7
    • 18

    Shower or two

    • 8
    • 17

    Shower or two

    • 4
    • 16

    Partly cloudy

    • 5
    • 19

    Shower or two

Today 21 Aug Yorke Peninsula

Cloudy. Slight chance of a shower, becoming less likely in the late afternoon and evening. Winds west to southwesterly 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures around 16.

Spencer Gulf Coastal Waters

Wind
West to southwesterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Cloudy.
Weather Situation
A high pressure system over the Bight slowly drifts over SA on Saturday to be centred over the eastern states by Sunday. A weak front embedded in the southwesterly flow around the high, clips the southeast early Saturday morning. A low pressure system and associated trough move into the far west later Sunday and then moves across the state on Monday an d out over the eastern states by later Tuesday. Another ridge of high pressure moves into the west later Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Moonta Bay Temperature Statistics View More

August Temperature

Kadina Airport (13km)

  • Lowest 1 August, 2026

    -0.8 °C

  • Average August

    11.4 °C

  • Highest 18 August, 2026

    19.1 °C

Climate (2021–2026)

Kadina Airport (13km)

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  • Average Low 2021–2026

    10.2 °C

  • Average 2021–2026

    16.4 °C

  • Average High 2021–2026

    23.5 °C
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