Riddoch Bay Weather Forecast

    • 6
    • 16

    Cloudy

    • 8
    • 16

    Partly cloudy

    • 6
    • 15

    Partly cloudy

    • 7
    • 15

    Cloudy

    • 5
    • 18

    Sunny

    • 10
    • 18

    Showers

    • 10
    • 16

    Shower or two

Today 27 Aug Mount Gambier

Cloudy. Winds northerly 15 to 20 km/h tending northwesterly in the middle of the day then becoming light in the late afternoon.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwesterly 10 to 15 knots, reaching up to 20 knots south of Beachport in the late morning and afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres south of Beachport during the morning.
1st Swell
Southwesterly 2 to 2.5 metres, tending westerly 2.5 to 3 metres by early evening.
Weather
Partly cloudy.
Weather Situation
A high pressure ridge over central SA will move slowly eastwards during today. A low pressure trough over WA is expected to extend over the far west of SA late Thursday and Friday. A high pressure system will move across waters to the south over the weekend to be centred over southern Victoria late Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

August Temperature

Mount Gambier Airport (33km)

  • Lowest 1 August, 2026

    0.3 °C

  • Average August

    10.4 °C

  • Highest 17 August, 2026

    19 °C

Climate (2021–2026)

Mount Gambier Airport (33km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20.1 °C
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