Riddoch Bay Weather Forecast

    • 14
    • 17

    Shower or two

    • 8
    • 15

    Showers

    • 10
    • 14

    Shower or two

    • 8
    • 14

    Shower or two

    • 5
    • 14

    Shower or two

    • 8
    • 14

    Showers

    • 7
    • 13

    Possible shower

Today 18 Jun Mount Gambier

Cloudy. Medium chance of showers. Winds northerly 25 to 30 km/h.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwesterly 20 to 30 knots, reaching up to 35 knots south of Beachport.
Seas
3 metres, increasing to 3 to 4 metres south of Port MacDonnell.
1st Swell
Southwesterly 1.5 metres.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A low pressure system south of the Bight will drift to the south east while a trough extends across western coasts late on Thursday. This trough will linger along the coastline into Friday, developing into the cold front that will clear into the east early Saturday. A high pressure system will begin to move in from the west on Saturday, cross the Bight, slowly drifting to eastern SA by Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

June Temperature

Mount Gambier Airport (33km)

  • Lowest 15 June, 2026

    2.4 °C

  • Average June

    12.1 °C

  • Highest 12 June, 2026

    20.1 °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 °C
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