Riddoch Bay Weather Forecast

    • 9
    • 16

    Showers increasing

    • 10
    • 15

    Shower or two

    • 7
    • 17

    Cloudy

    • 8
    • 18

    Shower or two

    • 8
    • 15

    Shower or two

    • 6
    • 15

    Possible shower

    • 7
    • 16

    Shower or two

Today 21 Aug Mount Gambier

Cloudy. High chance of showers, most likely in the late afternoon and evening. Winds westerly 15 to 25 km/h tending northwesterly 15 to 20 km/h in the evening then becoming light in the late evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Westerly 15 to 20 knots, reaching up to 25 knots south of Beachport during the day.
Seas
1 to 1.5 metres, increasing to 2 metres south of Port MacDonnell during the afternoon.
1st Swell
Westerly 3 metres, increasing to 3 to 4 metres during the morning.
Weather
Cloudy. 70% chance of showers.
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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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