Riddoch Bay Weather Forecast

    • 8
    • 13

    Cloudy

    • 6
    • 14

    Cloudy

    • 5
    • 16

    Shower or two

    • 4
    • 17

    Possible shower

    • 8
    • 16

    Showers increasing

    • 8
    • 14

    Showers

    • 7
    • 14

    Showers easing

Today 4 Aug Mount Gambier

Cloudy. High chance of showers, becoming less likely in the late afternoon and evening. Winds southwesterly 15 to 25 km/h becoming light in the late afternoon.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southwesterly 10 to 15 knots, reaching up to 20 knots south of Beachport in the late morning and early afternoon. Winds decreasing to about 10 knots in the late evening.
Seas
1 to 2 metres, decreasing to 1 metre by early evening.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy. 50% chance of showers south of Beachport, near zero chance elsewhere.
Weather Situation
A high pressure system centred in the Bight will slowly move over southeastern Australia this week while maintaining a ridge over SA. A trough will pass by the coast mid week before a stronger cold front begins to move into the Bight this weekend.
Graph Plots Open in Graphs

  • 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

    8.1 °C

  • Highest 2 August, 2026

    15.7 °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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